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In general, chemical compounds that have multiple bonds (Double or Triple), they can accept addition reactions. The reaction could proceed either by nucleophilic, or electrophillic addition reactions. In some special cases, it can be controlled either thermodynamically, or kinetically.

Activation analysis is a very sensitive analytical technique useful for nuclear testing. This technique could be performed either by neutron (NAA), or by photons (PAA). Both techniques perform qualitative and quantitative multi-elemental analysis. It is possible to determine elemental analysis regardless of the oxidation state of the chemical composition and the physical characteristic of the sample.

Gasoline additives increase gasoline's octane rating or act as corrosion inhibitors or lubricators, thus allowing the use of higher compression ratios for greater efficiency and power, however some carry heavy environmental risks. Types of additives include metal deactivators, corrosion inhibitors, oxygenates and antioxidants.

An addition reaction, in chemistry, is in its simplest terms an organic reaction where two or more molecules combine to form a larger one.

There are two main types of polar addition reactions:

Electrophilic addition
Nucleophilic addition

Other non-polar addition reactions exists as well:

Free radical addition

Addition reactions are limited to chemical compounds that have multiple-bonded atoms:

Molecules with carbon-carbon double bonds or triple bonds
Molecules with carbon - hetero double bonds like C=O or C=N
An addition reaction is the opposite of an elimination reaction. For instance the hydration reaction of an alkenes and the dehydration of an alcohol are addition-elimination pairs

The functional group of alkyl halides is a carbon-halogen bond, the common halogens being fluorine, chlorine, bromine and iodine.

Alkylation is the transfer of an alkyl group from one molecule to another. The alkyl group may be transferred as an alkyl carbocation, a free radical or a carbanion (or their equivalents).

Chemists who are involved in any aspect of laboratory or manufacturing operations concerned with the preparation of organic compounds and who wish to acquire a stronger background in the methods of organic synthesis and the strategies by which syntheses of organic compounds may be designed. The course will be invaluable to chemists at any level of training (B.S., M.S., or Ph.D.) who need a refresher or who feel their knowledge is becoming out of date. Relatively recent Ph.D.'s in organic chemistry are less likely to benefit from the course. Registrants are encouraged to bring a small set of molecular models for use in the course.

Organosilicon compounds are chemical compounds containing carbon silicon bonds. Organosilicon chemistry is the corresponding science exploring the properties and reactivity of organosilicon compounds. Like carbon, organosilicon compounds are tetravalent and tetrahedral. Unlike carbon, silicon is not found in any biomolecules.

Charles Friedel and James Crafts discovered the first organosilicon compound, tetraethylsilane in 1863 by reaction of tetrachlorosilane with diethyl zinc. Discovered in 1893, the simplest marriage between silicon and carbon is silicon carbide, which has many industrial applications.

Organosulfur compounds are organic compounds that contain sulfur (sulfur). They are often associated with foul odors, but ironically many of the sweetest compounds known are organosulfur derivatives. Nature abounds with organosulfur compounds - sulfur is essential for life. Two of the 20 common amino acids are organosulfur compounds. Fossil fuels, coal, petroleum, and natural gas, which are derived from ancient organisms, necessarily contain organosulfur compounds, the removal of which is a major focus on oil refineries.

Sulfur shares the chalcogen group with oxygen, and it is expected that organosulfur compounds have similarities with carbon-oxygen compounds, which is true to some extent. A classical chemical test for the detection of sulfur compounds is the Carius halogen method.

Organometallic compounds are also known as organo-inorganics, metallo-organics and metalorganics. Organometallic compounds are distinguished by the prefix "organo-" e.g. organopalladium compounds. Examples of such organometallic compounds include all Gilman and Grignard reagents, which contain lithium and copper, and magnesium respectively. Tetracarbonyl nickel, and ferrocene are examples of organometallic compounds containing transition metals. In addition to the traditional metals and semimetals, elements such as boron, silicon, arsenic, and selenium are considered to form organometallic compounds. Examples include organomagnesium compounds such as iodo (methyl) magnesium MeMgI, diethylmagnesium (Et2Mg); organolithium compounds such as butyllithium (BuLi), organozinc compounds such as chloro (ethoxycarbonylmethyl) zinc (ClZnCH2C (=O) OEt); organocopper compounds such as lithium dimethylcuprate (Li+[CuMe2]–); and organoborane compounds such as triethylborane (Et3B).

Many organometallic compounds exist in biological systems. For example, hemoglobin and myoglobin contain an iron center bonded to a porphyrin ring; magnesium is the center of a chlorin ring in chlorophyll. The specialized field of such inorganic compounds is known as bioinorganic chemistry. A class of organic compounds containing a ring structure made up of more than one kind of atom, usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.

Hydrodesulfurization (HDS) catalysts typically consist of small clusters of molybdenum disulfide with low concentrations of cobalt or nickel additives that serve to promote chemical reaction. Some catalyst formulations use tungsten disulfide. Treating heavy crude oil fractions with hydrogen in the presence of HDS catalysts strips the raw material of environmental pollutants by converting sulfur-containing molecules to volatile hydrogen sulfide.

Expert is a fine chemical scientist specializing in multi-step custom synthesis of compounds that are not commercially available. He synthesizes novel and rare organic chemicals in the scale ranging from milligram to multi-kilogram quantities.

A chemical intermediate is any chemical substance produced during the conversion of some reactant to a product. Most synthetic processes involve transformation of some readily available and often inexpensive substance to some desired product through a succession of steps. All the substances generated by one step and used for the succeeding step are considered intermediates.

For a Paint Manufacturing company, Expert discusses Ethylsilicates production with a client. Expert consulted for a Sugar Factory, researching side products and recycling.For a company in Oil and Lube manufacturing, Expert discussed Benton activation, and important additives modification. Expert has provided Zeolites characterization, modification and specification. Expert provided support for Natural gas conversion OCM processes.