- 行业: Printing & publishing
- Number of terms: 178089
- Number of blossaries: 0
- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
The formation of a red-brown color when cysteine is reacted with 1,2-naphthoquinone-4-sodium sulfate in a highly alkaline reducing medium.
Industry:Chemistry
The reaction of chlorinated hydrocarbons with metallic fluorides to form chlorofluorohydrocarbons, such as CCl<sub>2</sub>F<sub>2</sub>, which is quite inert and nontoxic.
Industry:Chemistry
(C<sub>6</sub>H<sub>2</sub>Br<sub>2</sub>OH)<sub>2</sub>C(CH<sub>3</sub>)<sub>2</sub> An off-white powder with a melting point of 180–184_C; soluble in methanol and ether; used as a flame retardant for plastics, paper, and textiles.
Industry:Chemistry
C<sub>16</sub>H<sub>17</sub>N<sub>2</sub>Cl A yellow basic dye, used for textile dyeing and fluorescent sign paints.
Industry:Chemistry
A notation system for representing organic chemicals developed by G. Malcolm Dyson; the compound is described on a single line, symbols are used for the chemical elements involved as well as for the functional groups and various ring systems; for example, methyl alcohol is C.Q and phenol is B6.Q.
Industry:Chemistry
(CH<sub>3</sub>)<sub>2</sub>NC<sub>6</sub>H<sub>4</sub>CHO Granular or leafletlike crystals that are soluble in many organic solvents; melting point is 74_C; used in the preparation of dyes, as a reagent for arsphenamine, anthranilic acid, antipyrine, indole, and skatole, and as a differentiating agent between true scarlet fever and serum eruptions.
Industry:Chemistry
The formation of anthracene derivatives by dehydration and cyclization of diaryl ketone compounds which have a methyl group or methylene group; heating to an elevated temperature is usually required.
Industry:Chemistry
Preparation of cyclic ethers by the condensation of an aldehyde with an _-acylamino acid in the presence of acetic anhydride and sodium acetate.
Industry:Chemistry
A modification of the Leuckart reaction, involving reductive alkylation of ammonia or amines (except tertiary amines) by formaldehyde and formic acid.
Industry:Chemistry
Direct oxidation of an aromatic or heterocyclic bound methyl group to an aldehyde by utilizing chromyl chloride or certain metallic oxides.
Industry:Chemistry
