Products

Rubber accelerator TMTD

Chemical name:	Tetramethylthiuram disulfide
Structural formula:
Formula:	C6H12N2S4
M.W:	240.41
Property:	White or offwhite powder, odorless, irritating to respiratory tract and skin, mp 155-156 (chloroform + ethanol), density 1.29(20), soluble in benzene, acetone, chloroform and carbon disulfide, sparingly soluble in ethanol and ethyl ether, insoluble in water, gasoline and dilute alkali solution.
Use:	Vulcanization accelerator for natuaral rubber, synthetic rubber and latex, also acts as curing agent as it may decompose to produce free sulfur on heating to above 100. It is widely used as a primary accelerator for curing systems requiring very low or no sulfur, and often used to activate thiazole or sulfenamide curing systems. Applications include tyre, rubber shoes, medical products, cable, etc. Rate of use is usually 0.2-0.3% as accelerator, and 2-4% as curing agent.
Appearance:	White or offwhite powder.
Melting point:	≥140
Loss on drying:	≤0.5%
Ash:	≤0.2%
Residue on sieve (100 mesh):	≤0.1%
Package:	PP woven bag with PE liner, n.w. 25kg.
Storage:	Keep in a ventilated and dry place.