Wednesday, November 30, 2016
Bagaimanakah proses penyepuhan Pisau?

Bagaimanakah proses penyepuhan Pisau?

Pisau adalah salah satu alat yang paling serin digunakan terutama oleh ibu-bu rumah tangga. Pisau memiliki banyak ragam kegunaan. Misalnya memotong dan  mengiris sayuran, daging, dan bahan lainnya, pisau juga digunakan untuk senjata.
tentu saja masing-masing pisau yang berbeda kegunaan memiliki perbedaan bentuk. Gagang dan mata pisau bisa saja berbeda sesuai kebutuhan.
Pembuatan sebilah pisau yang baik memerlukan proses yang sangat teliti dengan tingkat keakurasian yang sangat tinggi. Mulai dari pemilihan jenis bahannya hingga proses pembuatan yang dilakukan dengan tahapan-tahapan yang sudah ditentukan.
Bahan Pisau yang baik adalah dipilih dari biji besi dengan proses yang sangat teliti. Satu bilah pisau dengan kualitas tinggi dikerjakan dalam kurun waktu tidak kurang dari 3 bulan, bahkan terkadang memakan waktu 6 bulan.
Terdapat banyak metode pembuatan Pisau dengan tangan.

Beberapa menggunakan proses pemanasan dan pelipatan baja yang berulang-ulang dan menyita tenaga. Setelah selesai, bilah pisau tersebut harus dipoles dengan hati-hati sebelum sang pengrajin pisau dapat membubuhkan penanda pada hasil karya seni mereka. Pisau merupakan bukti nyata dari keterampilan tangan tingkat tinggi, dan para pengrajin yang membuatnya pastilah memiliki nilai-nilai kebajikan yang unik.
roses pembuatan Pisau dijelaskan sebagai berikut :
1. PELEBURAN BAJA
Pisau pisau tradisional dibuat hanya dari baja murni, Selama berhari-hari, dengan teknik tradisional, para pandai besi/empu memindahkan pasir sungai yang mengandung biji besi dan memasukkan arang ke dalam tungku peleburan dari tanah liat yang khusus dibuat untuk menghasilkan baja. Saat ini sudah ada teknologi yang dipakai untuk menggantikan teknologi tradisional
Kandungan karbon pada arang pembakaran menjadi bahan kunci pembuatan baja. Suhu tungku bisa mencapai diatas 2500 F, dan panasnya mengubah bijih besi menjadi baja.
2. PELARUTAN KARBON
Selama dipanaskan pada suhu tinggi, Baja yang baik tidak boleh mencapai bentuk cair, agar jumlah karbon yang bereaksi dengan baja kadarnya tepat dan persentase karbon pada Baja yang baik akan bervariasi (antara 0.5 sampai 1.5 %). Ahli pembuat pisau menggunakan 2 jenis Baja yang baik, yang pertama karbonnya tinggi, sangat keras, dan memungkinkan dibuat mata pisau setajam silet; sementara yang kedua, karbonnya rendah, sangat kuat, baik untuk meredam guncangan. Pisau yang hanya menggunakan salah satu jenisnya saja, maka pisau akan mudah tumpul atau mudah patah. Pada malam ketiga proses pembakaran di tungku, para ahli tatara memecahkan tungku tanah liat tersebut untuk mengeluarkan Baja yang baik, dan dengan mudah mereka melihat kadar karbon baja itu dari pecahan-pecahan baja yang baru jadi.
3. MENGHILANGKAN KETIDAKMURNIAN
Potongan-potongan Baja yang baik terbaik selanjutnya dikirim ke ahli pembuat pisau, yang akan memanaskan, menempa, dan melipat baja berkali-kali untuk mencampurkan besi dan karbon dan juga menghilangkan kotoran yang berupa ampas biji besi. Tahap ini selain sangat penting juga memakan waktu lama, karena jika ada unsur selain besi dan karbon yang tersisa didalamnya, akibatnya pisau menjadi tidak kuat. Saat ahli pembuat pisau selesai menghilangkan semua ampas, ia bisa menilai konsentrasi karbon di dalam baja yang baik melalui kekuatan baja yang baik itu saat ditempa berulang-ulang. Seorang ahli mengibaratkan penghilangan ampas dari baja ini seperti memeras air dari spons yang sangat keras.
4. PENEMPAAN PISAU
Setelah ahli pembuat pisau menghilangkan semua ampas dengan menempa Baja yang baik berkali-kali, ia memanaskan baja yang keras dan berkarbon tinggi lalu membentuknya menjadi potongan panjang dengan celah panjang di tengahnya. Lalu ia menempa baja lainnya yang kuat dan berkarbon rendah yang ia bentuk agar bisa pas dimasukkan ke dalam celah baja satunya, dan ia tempa kedua baja yg sudah disatukan tadi. Dua jenis Baja yang baik kini ada di tempatnya: baja keras menjadi bagian luar dan mata pisau mematikan, sementara baja kuat menjadi bagian inti di dalam pisau. Keseimbangan karakteristik yang sempurna ini membuat pisau menjadi senjata samurai paling tahan lama dan berharga.
5. Hardening PISAU
Meskipun bilah utama pisau telah selesai, namun pekerjaan ahli pembuat pisau masih jauh dari selesai. Ia masih perlu melapisi bilah pisau bagian atas dan bagian yang tumpul dengan lapisan tebal dari campuran tanah lempung dan bubuk arang, sementara mata pisau yang tajam hanya dilapisi tipis saja, untuk selanjutnya pisau dipanaskan untuk terakhir kali dengan suhu dibawah yang 1500 F, jika lebih dari itu maka pisau bisa retak di proses selanjutnya.
Selanjutnya, sang ahli pembuat pisau mengeluarkan bilah pisau dari api lalu memasukkannya dengan cepat ke dalam bak air untuk mendinginkannya dengan segera. Proses ini disebut pendinginan cepat. Karena bagian dalam dan belakang pisau mengandung karbon yang sangat sedikit, maka akan lebih terkontraksi saat pemanasan dibandingkan dengan bagian depan yang tajam yang mengandung karbon lebih tinggi. Tahap ini memang sulit, karena satu dari tiga pisau akan gagal.
7. PENAMBAHAN SENTUHAN AKHIR
Pada tahap akhir, para pekerja logam menambahkan penanda besi atau jenis logam lain pada pegangan pisau. Lalu, tukang kayu membungkus senjata itu dengan sarung pisau kayu yang dipernis dan dihias dengan beragam ornamen oleh para seniman. Dibuat dari emas atau kulit eksotis dan bebatuan, pegangan Pisau adalah karya seni seperti bilah pisaunya itu sendiri.
Namun, terdapat proses yang sama dalam membuat pisau yaitu melalui proses penyepuhan.
Apa itu proses penyepuhan?
Video ini dapat digunakan untuk mengetahui bagaiaman proses penyepuhan pisau.
video


Wednesday, November 23, 2016
Introduction to Solution Chemistry

Introduction to Solution Chemistry

Image result
Solution Chemistry deals with the relationship between solutes and solvents. A solute is the substance that dissolves; it is the lesser substance.
The solvent is the substance that things dissolve in; it is the greater substance. If you were dealing with Kool-Aid, sugar would be the solute and water would be the solvent. Water dissolves so many things that it's often considered the universal solvent.
When dealing with this subject, temperature is key because different amounts of solutes dissolve at different temperatures. There is a certain amount of solute that can dissolve at each temperature, and you can find this by using a solubility table.
If you use less solute than can dissolve it is considered unsaturated, if you dissolve as much solute as possible without having any precipitate out, it is considered saturated. If you take care to heat a solution, dissolve solute at a raised temperature, then cool it, you may even be able to make it supersaturated, however, this is somewhat unstable.
In order to use any solution you need to know what the concentration is. There are many ways that concentration can be calculated. Molarity is very commonly used in a lab situation. This is calculated by dividing moles of solute by liters of solution. Molality is also used, especially when creating larger amounts.
Molality is calculated by taking mass of the solvent into consideration, because when making large quantities the volume can vary based on temperature, but the amount of molecules always weighs the same, so calculations based on weight rather than volume are better when dealing with very large volumes.

Article Source: http://EzineArticles.com/3893648
Tuesday, November 22, 2016
Start a High Profit Business Without a Science Degree

Start a High Profit Business Without a Science Degree

Image result
So, you want to be a cosmetics chemist? You want to join the cosmetic chemistry industry and formulate skincare, haircare, toiletries, body, bath and beauty products? But you think you need to go to university for three or four years and gain qualifications in cosmetic chemistry or chemical engineering -- right?
Not so.
Not if your main aim in wanting to be a cosmetic chemist is to start your own cosmetics business and join this multi-billion dollar industry.
The most common myth in the cosmetic chemistry industry is that you need an expensive university education to start a business in the field of cosmetics manufacture.
This is the advice offered on one cosmetic chemistry related website: "Get a science degree. Unless you have a relative who started the company, you will need a college degree in science since most cosmetic firms require it. Preferred ones include degrees in Chemistry or Chemical Engineering.
"Consider getting an advanced degree. True, a 4-year college degree is all you need, but you can improve your chances of breaking into cosmetics by getting an advanced degree."
In truth, you do not need a relative who started the company or an advanced degree to break into the cosmetic manufacturing industry.
It's true that if you want to make cosmetic formulations from scratch, without any previous experience making cosmetics or access to recipes and manufacturing procedures, and you want to work for a big international cosmetics company, you will need formal cosmetic chemistry qualifications.
But if your main aim is to start your own cosmetics business (and make much more money than any cosmetic manufacturing company will ever pay you), you don't need to step foot in any academic establishment, spend a minimum of three or four years studying, or spend tens of thousands of dollars in tuition fees.
Making cosmetics for retail sale is extremely lucrative. When you know the tricks of the trade and have access to the same formulations as the international manufacturers, most of the beauty products you can make will have profit margins of around 1000%. A $50 retail skincare product usually costs between 10 cents and $3 to make.
If you purchase professionally formulated recipes, and you can follow a basic cooking recipe, you can manufacture your own range of skincare, haircare, mineral makeup, etc. If you then decide you want to become more involved, once you've had a little practice and gain confidence you will easily be able to adapt these cosmetic chemistry formulations to create your own unique formulas - without the need for any degrees in cosmetic chemistry.
Cosmetic chemistry formulations include:
  1. Shampoos and Conditioners for different hair types
  2. Hairstyling Products -- gels, sprays
  3. Makeup -- foundations, mineral formulas, lip colors, eyeliner, mascara, nail polish
  4. Skincare -- cleansers, toners, moisturizers, acne preparations, anti-aging preparations
  5. Sunscreens -- UV protection and self-tanning lotions
  6. Baby Care Products -- shampoo, baby bath and lotion
  7. Men's Products -- shaving foam, aftershave
  8. Hand Care -- hand cleansers, hand scrub, moisturizing creams
  9. Body and Bath Products -- body butters and creams, shower gel, bath bombs
  10. Toiletries -- handwashes, deodorants
There are literally hundreds of different products that a cosmetic chemist can make. From this, hundreds more combinations can be made by the addition of a variety of essential oils and plant or fruit extracts.

Article Source: http://EzineArticles.com/3843909
Monday, November 21, 2016
High School Science Fair Projects

High School Science Fair Projects

Related image
High school science fair projects can be on any number of topics, depending upon the science course being taken. In the high school years students are allowed to take more advanced biology, chemistry, Earth Science and in some cases, rudimentary physics and astronomy courses. With this diversity, projects can be designed that even are cross disciplinary, like combining physics and astronomy to design a project that could answer problems faced by space travelers, for example. A few ideas for high school level science projects follow:
o Experts are saying that global warming could be the cause of the disappearance of many of the world's fields of glaciers in the next 50 years. What evidence is there that these changes are already occurring? Why is there a debate among scientists that global warming may or not be occurring? Do you think this debate may be financially or politically motivated? What effects will global warming have on the planet if it is happening? How do scientists that do not believe in global warming explain the discrepancies? Show both sides of the argument so that the average American can be better educated on how it affects everyone's daily life, especially if something isn't done soon.
o High school science fair projects involving "going green" are highly popular. Biodiesal fuels seem to be the next answer when it comes to finding a solution to the current oil crisis. What constitutes a "biofuel"? How is it manufactured and from what? Are these sources considered renewable? If so, why? How does the use of a biofuel affect CO2 emissions? Are biofuels as efficient as the fossil-fuels now being used? What adaptations are needed for a vehicle to utilize a biofuel?
o President Obama signed legislation in June of 2009 that will be providing incentives through the Department of Energy to businesses and individual homeowners that install small solar or wind-powered generators. He is hoping that these smaller generators will hook into the local utility grids to provide more wattage that can be purchased by other users. What exactly constitutes a solar generator? What constitutes a wind generator? How will these benefit the local power utility? Are there regions of the country that would be better suited to one type of generation system over the other? How would the individual installing the small system determine this? Is the savings to energy consumers projected between the years 2012 and 2042 realistic? Why or why not?
o There is a huge debate raging over the use of genetically modified foods. What constitutes an engineered food? What are some of the dangers that some scientists believe that genetically altered foods could pose? Why do some farmers fear the planting of genetically altered crops near those that are not? Do you feel this concern is justified or not? If so, what can be done about it? Provide a sheet that can be presented to the average citizen to educate them on the subject, and who to contact to voice objections to.

Article Source: http://EzineArticles.com/2714588
Sunday, November 20, 2016
30 Must Know High School Chemistry Facts

30 Must Know High School Chemistry Facts

Image result
This article speaks about 30 facts that high school chemistry students can use as a guide to help them with their chemistry labs, experiments, and exams. These facts will remind students of what they already know and will help them with the basics of chemistry.
  1. The atom is characterized as the fundamental unit of matter which comprise of a core and a billow of adversely charged electrons.
  2. A proton is an absolutely charged molecule and is discovered in the core of the atom.
  3. An electron had a negative charge.
  4. A neutron has no electric charge.
  5. Nuclear number is the same as the amount of protons in the core.
  6. Mass number is equivalent to the amount of protons in addition to the amount of neutrons.
  7. Number of neutrons is considered by subtracting the nuclear number from the mass number.
  8. Number of protons is equivalent to number of electrons in an impartial atom.
  9. The amount of particles in one mole of a substance is called Avogadro's number and is figured to be 6.02 x 10-23.
  10. The point when electrons get electrified they move from one vigor level to a higher vigor level.
  11. As they fall once more to ground state they radiate vigor as light and a splendid line spectra is processed.
  12. The appropriation of an electron in a molecule is alluded to as the electronic arrangement.
  13. Anions are negative particles and is formed when molecules pick up electrons
  14. Cations are sure particles and are formed when molecules lose electrons.
  15. Components are immaculate substances comprising of one or more classes of substances that can't be broken down into more straightforward substances by concoction forms.
  16. Isotopes are any two or more manifestations of a component with same number of protons yet distinctive number of neutrons.
  17. An answer is a homogenous (same) mixture of two or more substances
  18. Heterogeneous mixtures comprise of diverse, discernable substances and are not uniformed all through.
  19. A solute is a substance that tends to be broken up e.g. salt, while a dissolvable is the substance (typically fluid) that breaks up the solute e.g. water.
  20. Formulas are composed so the charges on the cation cross out each one in turn.
  21. Coefficients allude to those numbers composed before products and reactants so as to equalize the equation.
  22. Reactants are discovered on the left half of the response shaft and the products are discovered on the right.
  23. Endothermic responses ingest the energy from the encompassing while exothermic responses discharge energy.
  24. Physical properties allude to the manifestation of the material and do not shape new substances
  25. Chemical properties bring about the structuring of new substances
  26. The "Law of Conservation" of energy states that the masses of the reactants in a concoction mathematical statement will dependably be equivalent to the masses of the items.
  27. There are three states of matter: strong, fluids and gases.
  28. Solids have a decided shape and volume.
  29. The particles in fluids are nearly divided and can effectively move nearby one another. They have no unambiguous shape anyway they have a positive volume.
  30. Gases have broadly separated particles that are inconsistent irregular movement and will impact the dividers of the compartment to make force.
High School Chemistry Guide has more information on all Chemistry Labs and Experiments, as well as additional information that all Chemistry Students need.

Article Source: http://EzineArticles.com/7957063
Saturday, November 19, 2016
Use of Active Pharmaceutical Ingredients for Sustainable Development

Use of Active Pharmaceutical Ingredients for Sustainable Development

Image result
The biggest reason why chemicals are still in demand in the world today is because they have been able to successfully change lives in many ways. Health, the largest motivator to improve on the existing production of active pharmaceutical ingredients has been responsible for many a pharmaceutical chemical company to continue their quest in research and development. The large uses of several ingredients have already bought amazing results which are constantly reported in medical journals. Branded pharmaceutical intermediates have become the support system for some companies that look for expanding their key base. Various food additives and drug intermediates are the main stay of any pharmaceutical chemical company. For several decades the pharmaceutical units were based in western countries. Now the focus has shifted to developing countries where the facilities are equally good. There is more scope of development in many areas of drug making. The active pharmaceutical ingredients (better known as APIs), have become extremely important in the making of drugs for medical and beauty purposes. The standard requirement of GMP is essential for all pharmaceutical ingredients and intermediates are used in the processes of making compounds. The sourcing for such ingredients has turned holistic and natural as most biotech companies look for better alternatives. A pharma company that endorses the best eco-conscious policies will have acceptance on a global level. A sustainable development towards the essential pharmaceutical ingredients for drug manufacturing is important. The development of new chemistries for many biotech companies now involves green chemistry.
There are several Indian and Chinese companies that are making APIs for the western world. The main reasons why globally some of them are doing well are because of the infrastructure and expertise that they have. A global pharmaceutical company must:
1. Be complaint to western regulatory policies.
2. They are able to provide full information on their production capacities, business scope, technical expertise, manufacturing processes, quality control management, and several products to offer to the global market, research & development facilities, approvals of GMPs, company's service record, client endorsements and global ventures.
3. How well the scientific team is equipped and also qualified to make the ingredients.

Article Source: http://EzineArticles.com/5145418
Wednesday, November 9, 2016
Top 5 Reasons of Why Students Fail in Chemistry

Top 5 Reasons of Why Students Fail in Chemistry

Image result
Chemistry appears to be too difficult and challenging and many students fail the subject. Chemistry is the bane of high school life for many students. Rather than relying on your high school chemistry teacher for good chemistry grades, why not put in some serious effort yourself? Here are some common mistakes that many high schools students like you, have done and how you can avoid them.
1. Procrastination
You think why study chemistry today when the concepts you are taught are pretty easy, right? Wrong. The first few days of your chemistry class might seem very easy to you but you have to start studying from the beginning to get a thorough understanding of the subject.
Quiz or no quiz, study at least 10 minutes on a daily basis. This will save you from cramming when your test is approaching. Each concept is linked to another one and you need to build concept upon concept. Laying a bad foundation of chemistry won't help you in the long run.
2. Insufficient math practice
It is chemistry, what do you need math for? Top balance equations and perform unit conversions. Work chemistry problems daily and show them to someone.
Always do them the way you are supposed to do them in your test and exams by including units and full working. Make data of knowns and unknowns required to clarify problem.
3. Passing away the text
Not putting in time to read text is a mistake you should totally avoid. Same goes for any lab manuals you are required to read. A book is necessary for home assignments. Read the book even if you take down notes in lectures to give you a detailed understanding.
Your high school chemistry teacher sometimes might not cover everything in the class. They will leave some reading for you. Read the chapters at home and ask teachers to explain concepts you don't understand.
4. Believe in yourself
Believe you can understand chemistry concepts. If you believe you are capable of learning chemistry, you will be motivated into doing it.
5. Copying answers
This includes not just copying from your friends but also from the worked answers at the back of book and study guides. They are there to facilitate you in learning, not cheating in homework assignments. Do your assignments yourself so you have ample practice for tests.

Article Source: http://EzineArticles.com/6839211
Tuesday, November 8, 2016
Importance of Oxygen in Daily Life

Importance of Oxygen in Daily Life

Image result
It cannot be more over-emphasized that oxygen is vital for sustenance of life on earth. Through respiration oxygen is taken to the lungs from where, after dissolving in blood, it is carried to all the cells in the body. It is responsible for oxidation or burning of food, thus, generating energy required for our body to function. In our day to day life, we see many people who seem tired or look like they have no energy. It is so because many of us, now-a-days, suffer from deficiency of oxygen.
Such deficiency can result from host of factors such as poor diet, air pollution, and wrong method of breathing and lack of exercise. The lack of sufficient oxygen in our cells weakens our immune system. Needless to say, oxygen is one of the most important elements needed for sustaining life on the planet. In the absence of oxygen, either our bodies start to suffer or we die. In case of deficiency of oxygen, the metabolism does not happen in the correct way resulting in weak or unhealthy cells. As a result, we lose our natural immunity and become susceptible to viruses and all sorts of diseases. However, we can opt for oxygen supplements for treatment of lack of oxygen or else we must undergo oxygen therapy.
On the other hand, the non-metallic element is also instrumental in destroying the harmful bacteria while leaving the beneficial bacteria totally unharmed. No drug can accomplish such a feat. For leading a fuller life, we need to exercise and follow a diet that is rich in nutrients. However, it is not the case as far as our modern life is concerned. We a lead a sedentary life which is aggravated by depleted oxygen levels in the atmosphere. The situation demands we inhale more of the highly reactive element to deal with the stresses of modern life.
There are numerous stresses on bodies resulting from the nature of modern life. To begin with, we cannot avoid getting exposed to chemicals. To get rid of the toxic stress due to chemical exposure, our cells need to be detoxified from time to time. In a world where breakdown of families or personal relationships is all too common, there is no way to escape emotional stress, which requires the production of adrenaline and andrenal hormones. Moreover, a physical trauma also restricts circulation as well as supply of oxygen inside our bodies. And, oxygen is also exhausted by infections we suffer from as non-metallic gas is needed to fight off fungi, bacteria and viruses.

Article Source: http://EzineArticles.com/9430987
Monday, November 7, 2016
Sodium Bicarbonate - A Chemical of Importance

Sodium Bicarbonate - A Chemical of Importance


Chemicals are important parts of our everyday life. Different industries use chemicals in many ways. They can be used in their simplest forms or you can use them in their compound form. One of the most important chemical combinations that we use in our everyday life is Sodium Bicarbonate.
If you have not recalled your chemistry lessons, a mixture of sodium hydroxide and carbon dioxide in water forms Sodium Bicarbonate. The precipitate formed is usually whitish and it can take form of a crystalline or fine powder. Let us find out the uses of this chemical compound as well as its importance to our society today.
Baking Soda
Sodium Bicarbonate is an important component of baking soda. This product is not only limited kitchen use and baking. Baking soda can be used as a whitening agent for the teeth. If you have halitosis, you can dissolve this in water and gargle it to remove bad breath. It is also a cleansing agent. It can remove stains and smells from your clothes. Clean your kitchen utensils and many others. One of the most popular uses for baking soda is for relieving itches. It can also work like cornstarch as it promotes cleanliness.
Fire Protection Device
This compound is also used to put out fire. It is one of the components of powder fire extinguisher. It is part of the Category B and C, which can be used to put out fire from combustible substances and any devices involving wires. There other compounds used to put out fire using this device. Sodium Bicarbonate is just one of them.
Medicine
This is one of the popular medicines used to correct fluid and electrolyte imbalances. If you have a case of indigestion, this medicine is given. They are popularly used as antacids. In cases of hyponatremia (which means low sodium in the blood) and metabolic acidosis, this compound is very important. It replaces lost sodium in the body and raises the ph of your body to lever it to the normal level.
Science Project
Have you ever seen a model volcano erupting? This is the way to do it: All you have to do is make your own volcano and make sure it is stable and water proof. You can put sodium bicarbonate on it and mix it with vinegar then you will your own volcano resembling a real eruption. You will notice a lot of fizzles and bubbles. It can make your volcano look as if it was really erupting (just as you see it in Discovery Channel).
It is amazing how chemicals like this work to make our lives easier and safer. The invention of powder fire extinguishers has been made possible because of their existence. Nowadays we have better and safer ways to tackle fire. We also have better alternatives to treat rashes. And bread keeps getting better and better as you use this effectively. In addition, we can save lives just by mere using this as a medicine. No wonder life has drastically improved because of chemicals like this.

Article Source: http://EzineArticles.com/1669658
Sunday, November 6, 2016
Krypton - Properties And Uses

Krypton - Properties And Uses


In 1898, Sir William Ramsey and Morris Travers discovered Krypton along with 2 other noble gases. Krypton is called noble as it does not react with other gases under normal circumstances. After its discovery, Krypton has ran ahead to become a very in-demand chemical elements of various sectors starting from electronics to health. The functional properties of Krypton play an important role in enabling its very many uses for humans. However, in order to understand its uses the basis properties need to be understood.
Krypton Properties
Krypton is a noble gas with no color, odor, or taste. In the earth's atmosphere, it is found in minute quantities which is proven by its presence of 1 part per million (PPM) in the air around us.
  • It's denoted by the symbol Kr with 36 as its atomic number in the periodic table of elements.
  • Its melting point is 251.25 F and boiling point is -241.12 F.
  • Krypton has atypical green and orange color from the spectral lines being emitted from it.
  • Its structure is crystalline with face-centered cubic design like all other noble gases and has same constituents.
  • In the beginning it was thought that Krypton is fully inert. However, Fluorine, which is in the list of the most reactive elements, was combined with Krypton to produce compounds like Krypton difluoride and Krypton tetrafluoride in 1963 shedding more light on the latter's chemical behavior.
  • Krypton is non-toxic asphyxiate and can harm humans with its potential to trigger narcosis.
Uses of Krypton
  • Krypton has interesting uses in lighting systems. In everyday life, Krypton is used in lamps, advertising signs, billboards etc. Power consumption can be reduced by using fluorescent light in street lamps.
  • Filament evaporation in incandescent light bulbs can also be curbed by using Krypton.
  • MRI, magnetic resonance imaging, makes use of Krypton to get an image of airways.
  • It's very useful in foggy days to light the streets as its electrical generation capacity throws light to 1000 ft at least. The crucial task of aircraft navigation on runways is achieved by using the light of Krypton in deep fog.
  • High speed professional or scientific photography uses it in the camera flash. Commonly, it is used in slides and movie projectors.
  • In order to measure thermal capacity or quantity of heat in a substance, Krypton is used to develop 'quasi-homogeneous electromagnetic calorimeters'.
  • The most specific scientific, but common use of Krypton comes in defining a meter. This is done by heating Krypton-86 till it gives off a clear, bright reddish-orange line. A meter is measured by scientists as 1,650,763.73 times the exact width of this Kryptonic line.
The above properties and uses of Krypton make it a very important gas or chemical element. It is actually obtained by liquefying air through fractional distillation at a very high cost. The exorbitant cost deters various sectors from using it widely. New methods are being developed to obtain this gas in affordable ways for various purposes.

Article Source: http://EzineArticles.com/6959872