гидрокорды қышқыл

A compound present in all grapes which is also an essential component of wine to preserve, enliven and shape its flavors and to help prolong its aftertaste. There are four major ...

қышқыл

Beverages; Wine

Sharp-tasting because of acidity. Occasionally used as a synonym for acidic.

қышқыл

Photography; Professional photography

chemical substance with a pH value below 7.

абиетин қышқылы

Chemistry; Organic chemistry

C 20 H 30 O 2 A tricyclic, crystalline acid obtained from rosin; used in making esters for plasticizers.

альфин катализаторы

Chemistry; Organic chemistry

A catalyst derived from reaction of an alkali alcoholate with an olefin halide; used to convert olefins (for example, ethylene, propylene, or butylenes) into polyolefin polymers.

бензотиазоль

Chemistry; Organic chemistry

C 6 H 4 SCHN A thiazole fused to a benzene ring; can be made by ring closure from o-amino thiophenols and acid chlorides; derivatives are important industrial products.

целлюлозалық

Chemistry; Organic chemistry

Any of the derivatives of cellulose, such as cellulose acetate.

3,5-диаминобензоқышқыл

Chemistry; Organic chemistry

C 7 H 8 N 2 O 2 Monohydrate crystals with a melting point of 228_C; soluble in organic solvents such as alcohol and benzene; used in the detection and determination of nitrites.

аланил

Chemistry; Organic chemistry

The radical CH 3 CHNH 2 CO_; occurs in, for example, alanyl alanine, a dipeptide.

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нормативті айтылу

Received Pronunciation (RP), also called the Queen's (or King's) English,[1] Oxford English,[2] or BBC English, is the accent of Standard English in ...