2-Mercaptobenzothiazole CAS 149-30-4 , also known as accelerator M, is an organic compound with the chemical formula C7H5NS2. It is a light yellow crystalline powder mainly used as a sensitive reagent for detecting gold, bismuth, cadmium, cobalt, mercury, nickel, lead, thallium, and zinc, as well as a rubber accelerator.

Chinese name: 2-Mercaptobenzothiazole

Foreign name: 2-Mercaptobenzothiazole

Nickname: 2-Mercaptobenzothiazole

Chemical formula: C7H5NS2

Molecular weight: 167.251

CAS login number: 149-30-4

EINECS login number: 205-736-8

Melting point: 177 to 181 ℃

Boiling point: 305 ℃

Density: 1.42 g/cm ³

Appearance: Light yellow crystalline powder

Flash point: 243 ℃

Physical and chemical properties

Density: 1.42g/cm3

Melting point: 177-181 ℃

Boiling point: 305 ℃

Flash point: 243 ℃

Refractive index: 1.783

Steam pressure: 0.000844mmHg at 25 ° C

Appearance: Light yellow crystalline powder

Solubility: Slightly soluble in hot water, soluble in alcohol, chloroform, acetone, carbon tetrachloride, etc., easily soluble in ethyl acetate and acetone, soluble in alkaline solutions such as ethanol, propanol, chloroform, ether, carbon disulfide, ammonia, sodium hydroxide, and sodium carbonate, slightly soluble in benzene, insoluble in water and gasoline

Purpose

Mainly used as a sensitive reagent and rubber promoter for detecting gold, bismuth, cadmium, cobalt, mercury, nickel, lead, thallium, and zinc.

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