Chemical processing, or natural fixation ( through processes such as bacterial conversion — see rhizome ), are necessary to convert gaseous nitrogen into forms usable by living organisms, which makes nitrogen a crucial component of food production.

* Chemical fixation

* 1997 – The Chemical Weapons Convention of 1993 enters into force, outlawing the production, stockpiling and use of chemical weapons by its signatories.

* Combustion Chemical Vapor Deposition ( CCVD ) – Combustion Chemical Vapor Deposition or flame pyrolysis is an open-atmosphere, flame-based technique for depositing high-quality thin films and nanomaterials.

* Chemical engineering –

* Chemical biology –

* Chemical kinetics –

# Chemical stability: CSF flows throughout the inner ventricular system in the brain and is absorbed back into the bloodstream, rinsing the metabolic waste from the central nervous system through the blood – brain barrier.

From 1950 – 1965, the State Chemical Laboratories in Agra, India investigated 2, 778 deaths that were caused by ingesting Datura.

Journal of Chemical Education, 2006, 83, 1476 – 78

* In 1888, Friedrich Reinitzer ( 1858 – 1927 ) discovered the liquid crystalline nature of cholesterol extracted from carrots ( that is, two melting points and generation of colors ) and published his findings at a meeting of the Vienna Chemical Society on May 3, 1888 ( F. Reinitzer: Beiträge zur Kenntniss des Cholesterins, Monatshefte für Chemie ( Wien ) 9, 421 – 441 ( 1888 )).

* Supercool microfluidics-Our understanding of life and technology at extreme temperatures could become clearer thanks to a microfluidic device that studies ice formation – reported in Chemical Technology from the Royal Society of Chemistry

* 1895 – In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector — a primitive radio receiver.

* 1869 – Dmitri Mendeleev presents the first periodic table to the Russian Chemical Society.

During and after the World War I, Lowry acted as Director of Shell-filling ( 1917 – 1919 ) and worked for the Trench Warfare Committee, Chemical Warfare Committee and Ordnance Committee.

* Organisation for the Prohibition of Chemical Weapons – Nerve Agents

* 1981 – Frank Iero, American musician ( My Chemical Romance, Pencey Prep )

* Ciech SA – Chemical group

* Chemistry: Molecular theory — Kinetic theory of gases — Molecular orbital theory — Valence bond theory — Transition state theory — RRKM theory — Chemical graph theory — Flory-Huggins solution theory — Marcus theory — Lewis theory ( successor to Brønsted – Lowry acid – base theory ) — HSAB theory — Debye – Hückel theory — Thermodynamic theory of polymer elasticity — Reptation theory — Polymer field theory — Møller – Plesset perturbation theory — Density Functional Theory — Frontier molecular orbital theory — Polyhedral skeletal electron pair theory — Baeyer strain theory — Quantum theory of atoms in molecules — Collision theory — Ligand field theory ( successor to Crystal field theory ) — Variational Transition State Theory — Benson group increment theory — Specific ion interaction theory

The next day, the names of the eight tracks not composed by Clint Mansell – Black Swans main composer – were released, listing The Chemical Brothers as contributing three new songs for the movie.

Seaborg leaked the synthesis of the elements 95 and 96 on the U. S. radio show for children, the Quiz Kids, five days before the official presentation at an American Chemical Society meeting on 11 November 1945, when one of the listeners asked whether any new transuranium element beside plutonium and neptunium had been discovered during the war.

A 50: 50 mixture of 2, 4, 5-T and 2, 4-D, it was manufactured for the U. S. Department of Defense primarily by Monsanto Corporation and Dow Chemical.

The Anatomical Therapeutic Chemical ( ATC ) Classification System is used for the classification of drugs.

The money was devoted largely to developing “ technical advice on the conduct of defoliation and anti-crop activities in Southeast Asia .” By the end of fiscal year 1962, the Chemical Corps had let or were negotiating contracts for over one thousand chemical defoliants.

* Organisation for the Prohibition of Chemical Weapons

* Organisation for the Prohibition of Chemical Weapons ( OPCW )

New additions to the campus include the Cahill Center for Astronomy and Astrophysics and the Walter and Leonore Annenberg Center for Information Science and Technology, which opened in 2009, and the Warren and Katherine Schlinger Laboratory for Chemistry and Chemical Engineering followed in March 2010.

The new Schlinger Laboratory for Chemistry and Chemical Engineering

* Center for Enabling New Technologies Through Catalysis, An NSF Center for Chemical Innovation, USA

* American Chemical Society Division of Computers in Chemistry-American Chemical Society Computers in Chemistry Division, resources for grants, awards, contacts and meetings.

Chemical reactions are central to chemical engineering where they are used for the synthesis of new compounds from natural raw materials such as petroleum and mineral ores.

Chemical kinetics experiments can then be carried out in a " pump-probe " fashion using a laser to initiate the reaction ( for example by preparing one of the reagents by photolysis of a precursor ), followed by observation of that same species ( for example by laser-induced fluorescence ) after a known time delay.

Also in the 2000s, My Chemical Romance released four concept albums, the most popular being Three Cheers for Sweet Revenge and The Black Parade.

If there is a change in the potential energy of a system ; for example μ < sub > 1 </ sub >> μ < sub > 2 </ sub > ( μ is Chemical potential ) an energy flow will occur from S < sub > 1 </ sub > to S < sub > 2 </ sub >, because nature always prefers low energy and maximum entropy.

A prominent case can be seen in the Love Canal Homeowner ’ s association ( LCHA ); in this case a housing development was built on a site that had been used for toxic dumping by the Hooker Chemical Company.

* Organization for the Prohibition of Chemical Weapons,

Accreditations include the Commission on Higher Education of the Middle States Association of Colleges and Schools, Accreditation Board for Engineering and Technology, Association of Collegiate Business Schools and Programs, American Chemical Society and the Council for Accreditation of Counseling and Related Educational Programs.

* Chemical Biology seeks to develop new tools based on small molecules that allow minimal perturbation of biological systems while providing detailed information about their function.

There is an overlap between biological warfare and chemical warfare, as the use of toxins produced by living organisms is considered under the provisions of both the Biological Weapons Convention and the Chemical Weapons Convention.

The offensive use of living organisms ( such as anthrax ) is considered biological warfare rather than chemical warfare ; however, the use of nonliving toxic products produced by living organisms ( e. g. toxins such as botulinum toxin, ricin, and saxitoxin ) is considered chemical warfare under the provisions of the Chemical Weapons Convention ( CWC ).

Chemical burns, biological agents, and thermal agents, from sources such as welding torches and UV light also contribute to occupational eye injury.

After work by Johns Hopkins University in the 1950s there was a concept for Direct Injection Antipersonnel Chemical Biological Agent ( DIACBA ) where flechettes were grooved, hollow pointed, or otherwise milled to retain a quantity of chemical biological warfare agent to deliver through a ballistic wound.

Chemical leaveners are used in quick breads and cakes, as well as cookies and numerous other applications where a long biological fermentation is impractical or undesirable.

Former units include the U. S. Army Chemical Activity, Pacific, at Johnston Atoll, which traced some of its history to the 267th Chemical Company and the Project 112 biological warfare defense experiments.

* Chemical, biological, radiological, and nuclear ( CBR or CBRN ), used to refer to incidents or weapons

* Chemical ecology-which deals with the ecological role of biological chemicals used in a wide range of areas including defense against predators and attraction of mates

Chemical insecticides were to be used in manner least disruptive to biological control.

When the U. S. Air Force ( USAF ) wanted a biological warfare capability, the Chemical Corps offered Agent US in the M114 bomblet, based after the 4-pound bursting bomblet developed for anthrax in World War II.

Fort Terry went through a period of activations and deactivations through World War II until the U. S. Army Chemical Corps took over the facility in 1952 for use in anti-animal biological warfare ( BW ) research.

* In 1962, Alistair Maclean published his novel The Satan Bug, about someone removing biological warfare agents from a Chemical Warfare Establishment called the Mordon Microbiological Research Centre ( based on Porton Down ), and using them to blackmail the country.

Chemical pathology or clinical biochemistry is the use of biochemical and molecular biological methods in the diagnosis ( and sometimes treatment ) of disease.

* Nuclear, biological, and chemical ; now Chemical, biological, radiological, and nuclear

Chemical pest control is still the predominant type of pest control today, although its long-term effects led to a renewed interest in traditional and biological pest control towards the end of the 20th century.

# REDIRECT Chemical, biological, radiological, and nuclear

Also the Samson can be fitted with full Chemical, biological, radiological, and nuclear protection unit.

Monsanto Company and two medical schools in St. Louis provide assistance and internships in the area of agricultural, health and biological sciences ; Mallinckrodt Chemical, in physical sciences ; McDonnell-Douglas, in engineering technology ; and Lucent Technologies Bell Labs, as well as the computer divisions of Monsanto, Mallinckrodt Chemical, and McDonnell-Douglas, in computer science and mathematics.

Chemical diversity in nature is based on biological and geographical diversity, so researchers travel around the world obtaining samples to analyze and evaluate in drug discovery screens or bioassays.

Canadian troops wearing Chemical, biological, radiological, and nuclear | CBRN suits training with the Blowpipe ( missile ) | Blowpipe missile.