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N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is a light gray solid at ambient temperatures.
The chemical has a slight, characteristic odor.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is sold by LANXESS for use as a vulcanization accelerator in the manufacture of tires, belts and other rubber products.
CAS: 95-31-8
MF: C11H14N2S2
MW: 238.37
EINECS: 202-409-1
Synonyms:N-t-Butyl-2-benzothioazole sulfenamide;N-t-Butyl-O-benzothiazole-2-sulfenamide;2-(tert-Butylaminothio)benzothiazole;2-[(tert-Butylamino)sulfanyl]-1,3-benzothiazole;2-Benzothiazolesulfenamide, N-tert-butyl-;Accel bns;accelbns;accelerator(ns);N-tert-Butyl-2-benzothiazolesulfenamide;95-31-8;Santocure NS;Nocceler NS;Vulkacit NZ;Accel BNS;Pennac Tbbs;2-(TERT-BUTYLAMINOTHIO)BENZOTHIAZOLE;Vanax NS;2-Benzothiazolesulfenamide, N-(1,1-dimethylethyl)-;2-Benzothiazolesulfenamide, N-tert-butyl-;Benzothiazolyl-2-tert-butylsulfenamide;N-tert-Butyl-2-benzothiazylsulfenamide;N-tert-Butylbenzothiazole-2-sulphenamide;NSC 84176;Santocure NS vulcanization accelerator;N-t-Butylbenzothiazylsulfenamide;HSDB 5288;N-tert-Butyl-2-benzothiazolyl sulfenamide;EINECS 202-409-1;N-t-Butyl-2-benzothiazolesulfenamide;BRN 0158370;W468IFJ99C;DTXSID7026572;SULFENAMIDE TBBS;N-(1,1-Dimethylethyl)benzothiazolesulfenamide;NSC-84176;Benzothiazolesulfenamide, N-(1,1-dimethylethyl)-;RHENOGRAN TBBS 80;DTXCID506572;EC 202-409-1;n-tert-butyl-2-benzothiazole sulfenamide;2-(TERT-BUTYLAMINOTHIO)BENZOTHIAZOLE [HSDB];BUTYL-2-BENZOTHIAZOLE SULFENAMIDE, N-TERT-;NtButylbenzothiazylsulfenamide;NtButyl2benzothiazolesulfenamide;NtertButyl2benzothiazylsulfenamide;Benzothiazolyl2tertbutylsulfenamide;NtertButyl2benzothiazolesulfenamide;NtertButyl2benzothiazolyl sulfenamide
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is one of the essential kinds of sulfenamide vulcanization accelerator, have anti-incipient scorch and the large advantage of vulcanization rate fast two concurrently for natural rubber, styrene-butadiene rubber(SBR), cis-1,4-polybutadiene rubber, in polyisoprene rubber, be particularly useful for the furnace treated black sizing material that alkalescence is higher, variable color and pollution are slight, the alternative NOBS(N-morpholinyl benzothiaolesulfenamide having carinogenicity possible containing secondary amine), the NOBS of tire industry is replaced with CBS (CZ) or TBBS in l994 law-making stipulation by Germany.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is mainly used in the manufacture of tires, rubber shoes, rubber hoses, tapes, and cables.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is an amine organic substance, which can increase the amount of filler carbon black.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is a commonly used aftereffect accelerator.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is very safe at operating temperature, has good scorch resistance, and has high constant elongation strength, which can improve the use of synthetic glue proportion.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) Chemical Properties
Melting point: 105°C
Boiling point: 344.1±25.0 °C(Predicted)
Density: 1,29 g/cm3
Vapor pressure: 0Pa at 25℃
Refractive index: 1.5500 (estimate)
Fp: 165°C
Storage temp.: Keep in dark place,Sealed in dry,Room Temperature
pka: 1.25±0.70(Predicted)
Water Solubility: 1.74mg/L at 20℃
BRN: 158370
InChI: InChI=1S/C11H14N2S2/c1-11(2,3)13-15-10-12-8-6-4-5-7-9(8)14-10/h4-7,13H,1-3H3
InChIKey: IUJLOAKJZQBENM-UHFFFAOYSA-N
LogP: 3.36 at 25℃
CAS DataBase Reference: 95-31-8(CAS DataBase Reference)
NIST Chemistry Reference: N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS)(95-31-8)
EPA Substance Registry System: N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS)(95-31-8)
Chemical properties light yellow brown powder. Soluble in benzene, dichloromethane, carbon tetrachloride, ethyl acetate, acetone, ethanol, soluble in gasoline, insoluble in water.
Uses
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is used as an accelerator for natural and synthetic isoprene and butadiene rubbers.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is a natural rubber, butadiene rubber, isoprene rubber, styrene butadiene rubber and reclaimed rubber aftereffect accelerator, especially suitable for carbon black rubber with strong alkaline content.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is safe at operating temperature, strong scorch resistance, fast vulcanization speed, high constant elongation strength, and can improve the use ratio of synthetic rubber.
Low toxicity and high efficiency, N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is an ideal substitute for NOBS, has excellent comprehensive performance, and is called a standard accelerator.
Widely used in the production of radial tires.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) can be used with aldehydes, guanidines, and thiuram accelerators, and when combined with anti-scorch agent PVI, it forms a good vulcanization system.
Mainly used in the manufacture of tires, rubber shoes, rubber hoses, tapes, and cables.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is an amine organic substance, which can increase the amount of filler carbon black.
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is called "standard accelerator" and is currently the dominant type of sulfamide vulcanization accelerator One of the varieties is mainly used in natural rubber, cis-butadiene rubber, styrene butadiene rubber, isoprene rubber.
Production Method
N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is obtained by the reaction of the sodium salt of 2-thiobenzothiazole (accelerator M) with tert-butylamine.
Slowly add 0.75mol of tert-butylamine to 0.5mol of sodium salt solution of 13% accelerator M, add 0.36mol of 25% sulfuric acid solution after half an hour, and react at 45-50 ℃ for 0.5h. 0.6mol 15% sodium hypochlorite was added within 2 hours.
After the reaction, N-Tert-butylbenzothiazole-2- sulphenamide ( BBTS) is cooled, filtered, washed, and dried below 50°C to obtain the product.
