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Monday, 5 May 2014

Chemical properties - Nitrogen symbol, electronic configuration, density

Nitrogen

Description:

 
Nitrogen is a inert diatomic gas at standard conditions. Many industrially important compounds, such as ammonia, nitric acid, organic nitrates, and cyanides, contain nitrogen. It occurs in all living organisms, and the nitrogen cycle describes movement of the element from air into the biosphere and organic compounds, then back into the atmosphere. It is a constituent element of amino acids and thus of proteins and nucleic acids. It resides in the chemical structure of almost all neurotransmitters, and is a defining component of alkaloids, biological molecules produced by many organisms.

Chemical Properties.

AppearanceColorless gas
Atomic Number7
Atomic Weight14.0067 g/mol
Blockp
Boiling Point-196 °C
CAS Number7727-37-9
Class2.2
Crystal StructureHexagonal
Density1.25 g/cm3
EINECS Number231-783-9
Electron Configuration1s2s2p3
Group15
Ionization Energy1402.3 kJ/mol
Melting Point-210 °C
Oxidation State5,4,3,2,1,-1,-2,-3
PGNA
Period2
RTECS NumberQW9700000
SymbolN
Nitrogen producers/suppliers - http://www.worldofchemicals.com/chemicals/manufacturers/fl/nitrogen.html

Chemistry Jobs - 5 May 2014


Science Intern – Laboratory Based Research

Dow AgroSciences LLC- Indianapolis, US


Formulation Chemist – Georgia

Koch Agronomic Services, LLC-Decatur, Georgia, UNITED STATES


 Product Scheduler – Fuels Division
LyondellBasell Industries Holdings B.V- NL, ZH, Rotterdam,WHQ, NETHERLANDS



Research & Development Engineer/Chemist
The Dow Chemical Company- Zeeland,Terneuzen, NETHERLANDS



Chemist – Polymer Characterization
W. R. Grace & Co.-Conn.- Columbia, Maryland, UNITED STATES



Innovation Scientist
W. R. Grace & Co.-Conn.- Cambridge, Massachusetts, UNITED STATES



Maintenance Engineering Area Leader
Monsanto Company- Louisiana,Luling, UNITED STATES



Associate Researcher
Shell India Markets Private Limited- Bangalore, INDIA




Senior Scientist – Assay Technology

Vernalis Plc- Cambridge, UNITED KINGDOM

Friday, 2 May 2014

Aerogels also known as Frozen smoke exceptional light weight material

The rare earth element Cerium

Not many of us are familiar with the element Cerium. Cerium is an element used in flat television screens and compact discs and such important electronic devices. Let us find out more about this element...

Everyday Chemistry - Meet Cerium: The Rare Earth Element
Wondering what Cerium is? You might have never heard of it but you have most definitely seen it! It is an element used in flat television screens, CDs and important electronic devices. Scroll to know more!
Birthday - Cerium was born in the year 1803. It was named after an asteroid Ceres by Von Hisinger and Berzelius.
Basic Info - Cerium is called a rare earth metal. But ironically, it is more abundant on earth than copper and lead. As an element, cerium does not have any uses. This is because it tarnishes easily and is very reactive with water. It will also ignite if simply scratched with a knife. Its compounds, however, are very useful.
Uses - It is non-toxic and can be used to reduce particulate emissions from diesel combustion engines and help people who suffer from asthma and bronchitis. It is also used to make electronic appliances such as flat-screen TVs, low energy light bulbs and compact discs.
Periodic Table - Cerium is present in the periodic table in a group called the Lanthanides. Its atomic number is 58, which means it has 58 protons in its nucleus and 58 electrons surrounding the nucleus

The Brighter Side - This element has lot of potential and will soon be used widely. This is mainly because it can be used to reduce particulate emissions from diesel combustion engines and it helps to produce a safe red dye, which can be used in paints.

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