wholesale research chemicals vulcanizing accelerator 2-mercaptobenzothiazole mbt 149-30-4
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For experimental / research use only. Accelerator: with special reference to the chemicals 2-mercaptobenzothiazole (MBT), aniline, PubMed:NTP Toxicology and Carcinogenesis Studies of 2-Mercaptobenzothiazole (CAS No. 149-30-4) in F344/N Rats and B6C3F1 Mice (Gavage Studies).
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Chemicals raw material chinese supplier trading wanted 2-Mercaptobenzothiazole Rubber Vulcanization Accelerator M MBT 149-30-4 Dalian Richon Chem Co., Ltd. US $1.50-$2.00 / Kilogram
Rubber Chemicals RUBBER VULCANIZING ACCELERATOR MBT (M
Product Description: RUBBER VULCANIZING ACCELERATOR MBT(M) Chemical Name:2-Mercaptobenzothiazole Molecular Formula:C7H5NS2. Molecular Weight: 167.26 CAS NO. : 149-30-4 Executive standard：GB/T 11407-2003 Specification:
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2-Mercaptobenzothiazole Rubber Vulcanization Accelerator MBT 149-30-4 Chemicals Henan GO Biotech Co., Ltd. 1 Metric Ton wholesale research chemicals / Rubber Accelerator CA(DPTU) / CAS No:102-08-9 Baofull Chemical Co., Limited (Liuzhou) 10 Metric Tons (Min. Order)
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2-mercaptobenzothiazole 98.0% (by hplc, titration analysis
2-Mercaptobenzothiazole | VWR. 2-Mercaptobenzothiazole ≥98.0% (by HPLC, titration analysis) Supplier: TCI America Description: CAS Number: 149-30-4 MDL Number: MFCD00005781 Molecular Formula: C7H5NS2 Molecular Weight: 167.24 Purity/Analysis Method: 98.0% (HPLC,T) Form
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Common Vulcanization Accelerators
A large number of chemicals that belong to different chemical classes are known to accelerate rubber vulcanization. About 50 of these accelerators are used on a commercial scale. Most of these belong to the six classes as described below. The vulcanization curatives can be further classified as primary and secondary accelerators.
Vulcanization. Vulcanization is a chemical process in which the rubber is heated with sulphur, accelerator and activator at 140–160°C. The process involves the formation of cross-links between long rubber molecules so as to achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance.
Mechanism of Mill Breakdown and Vulcanization in
The mechanism of the action of 2-mercaptobenzothiazole, MBT, one of the most commonly employed accelerators of vulcanization, remains unclear. L. Wistinghausen and B. A. Dogadkin and D. M. Pevzner (1951, unpublished) showed that MBT is consumed in vulcanization, but these authors, because of the crudity of their methods, did not obtain