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2-Mercaptobenzothiazole CAS#149-30-4

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Chemical Name：2-Mercaptobenzothiazole

CAS No.149-30-4

Molecular Formula：C7H5NS2

Molecular weight:167.25

Sample: Available

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Product Details

Products Description of 2-Mercaptobenzothiazole CAS#149-30-4

Pale yellow monoclinic needles or flaky crystals with an unpleasant odor. Insoluble in water and gasoline, soluble in ethanol, ether, acetone, ethyl acetate, benzene, chloroform and dilute alkali solution.

2-Mercaptobenzothiazole Chemical Properties

Melting point	177-181 °C(lit.)
Boiling point	223°C (rough estimate)
density	1.42
vapor pressure	<0.000003 hPa (25 °C)
refractive index	1.6100 (estimate)
Fp	243 °C
storage temp.	Store below +30°C.
solubility	0.12g/l
form	Powder
pka	9.80±0.20(Predicted)
color	Yellow
PH	7 (0.12g/l, H2O, 25℃)
Odor	Odorless
explosive limit	15%(V)
Water Solubility	<0.1 g/100 mL at 19 ºC
Sensitive	Air Sensitive
λmax	325nm(MeOH)(lit.)
Merck	14,5868
BRN	119484
Stability:	Stable. Incompatible with strong oxidizing agents. Flammable.
InChIKey	YXIWHUQXZSMYRE-UHFFFAOYSA-N
LogP	2.86
CAS DataBase Reference	149-30-4(CAS DataBase Reference)
NIST Chemistry Reference	2-Mercaptobenzothiazole(149-30-4)
IARC	2A (Vol. 115) 2018
EPA Substance Registry System	2-Mercaptobenzothiazole (149-30-4)

Safety Information

Hazard Codes	Xi,N
Risk Statements	43-50/53
Safety Statements	24-37-60-61
RIDADR	UN 3077 9/PG 3
WGK Germany	2
RTECS	DL6475000
F	9-13-23
Autoignition Temperature	465 °C
TSCA	Yes
HazardClass	9
PackingGroup	III
HS Code	29342020
Hazardous Substances Data	149-30-4(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 1680 mg/kg LD50 dermal Rabbit > 7940 mg/kg

Product Application of 2-Mercaptobenzothiazole CAS#149-30-4

As a general vulcanization accelerator, this product is widely used in various rubbers. It has a rapid accelerating effect on natural rubber and synthetic rubbers that are usually vulcanized with sulfur. However, it needs to be activated by zinc oxide, fatty acids, etc. before use. It is often used in combination with other accelerator systems, such as thiuram disulfide and tellurium dithiocarbamate as an accelerator for butyl rubber; it can be used in combination with tribasic maleic acid lead for light-colored water-resistant chlorosulfonated polyethylene rubber. It is often used in combination with dithiocarbamate in latex, and can be vulcanized at room temperature when used in combination with diethyl dithiocarbamate diethylamine. This product is easy to disperse in rubber and does not pollute. However, due to its bitter taste, it is not suitable for rubber products that come into contact with food. Accelerator M is an intermediate of accelerators MZ, DM, NS, DIBS, CA, DZ, NOBS, MDB, etc. 2-mercaptobenzothiazole, 1-amino-4-nitroanthraquinone and potassium carbonate are refluxed in dimethylformamide for 3 hours to obtain the dye disperse red S-GL (C.I.DisperseRed121). This dye is used for dyeing polyester and its blended fabrics. 2-mercaptobenzothiazole is also called acid copper plating brightener M when used as an electroplating additive. It is used as a paving auxiliary brightener in bright copper plating with copper sulfate as the main salt. In addition, this product is also used to prepare pesticide fungicides, nitrogen fertilizer synergists, cutting oils and lubricating additives, organic anti-ashing agents in photographic chemistry, metal corrosion inhibitors, etc. In addition, it is also a reagent for chemical analysis. This product is low in toxicity and irritating to the skin and mucous membranes.

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