Define chemical compound. chemical compound synonyms, chemical compound pronunciation, chemical compound translation, English dictionary definition of chemical compound. Noun 1. chemical compound - a substance formed by chemical union of two or more elem
'Catalysts' are substances that can increase the rate of a chemical reaction, without chemically changing themselves. Some reactions are reversible, such as the 'Haber process' in which nitrogen and hydrogen combine to form ammonia (NH3). The reaction is said to be in equilibrium when the forwa...
The apparatus has a reservoir containing said aqueous solution of chemical compounds through which combustion air or a portion thereof is bubbled. The apparatus can additionally have a second reservoir for a second aqueous solution in which a mixture of ammonia, propylene glycol and copper oxide is...
filings with sulphur powder is not considered a chemical compound, because there is no chemical reaction occurs between them, If this mixture is heated to a high temperature, a chemical reaction occurs (formation of chemical bond) between iron and sulphur producing the compound iron ( II ) ...
the molecular formula provides insight into the number of elements present in a compound. in molecular formulae, the elements are denoted by their respective symbols (as in the periodic table) and the number of atoms of each element in the molecule is written in subscript. for example- the ...
Histamine is chemically classified as an amine, an organic molecule based on the structure of ammonia (NH3). It is formed by the decarboxylation (the removal of a carboxyl group) of the amino acid histidine. English scientists George Barger and Henry H. Dale first isolated histamine from the ...
The invention provides a process for the preparation of high purity bone mineral wherein the organic matter in degreased bone is degraded and solubilised by heating with ammonia or a primary amine, characterised in that the solubilised degradation products are extracted by washing with flowing wat...
One method starts with a conjugate addition reaction of ammonia to phorone. The intermediate triacetone amine is then reduced in a Wolff-Kishner reaction. ▼ Product Name 2,2,6,6-Tetramethylpiperidine CAS 768-66-1 MF C9H19N MW 141.25400 ▼ Appearance Colorless or light yellow ...
Inchemical industry: Sources of sulfur Ammonium sulfate, a fertilizer, is normally made by causing ammonia to react with sulfuric acid. In many parts of the world, abundant supplies of calcium sulfate in any of several mineral forms can be used to make the ammonium sulfate by combining it wit...
the compounds contain a similar fraction of adenine substit done with 2 - amino - 6 - (cyclopropylamino) - 9 - 9 - yl method.the compounds show antiviral activity and the resistance to acid. salts and esters of phosphoramidats are included. a representative compound is (1s, 4r) - 4 ...