TETRAMETHYLTHIURAM MONOSULFIDE (TMTM)

TETRAMETHYLTHIURAM MONOSULFIDE
PRODUCT IDENTIFICATION
CAS NO.	97-74-5
EINECS NO.	202-605-7
FORMULA	[(CH₃)₂- NCS]₂S
MOL WT.	208.38
H.S. CODE	2930.30
TOXICITY	Oral, rat LD50: 450 mg/kg
SYNONYMS	TMTM; Tetramethyl-Thiodicarbonic diamide;
Tetramethylthiuram monosulfide; UNADS; Bis(dimethylthiocarbamyl) sulfide; Bis(dimethylthiocarbamyl) sulfide; Tetramethyl-Thiodicarbonic diamide; Aceto TMTM; Bis(dimethylthiocarbamoyl) sulfide; Bis(dimethylthiocarbamyl) monosulfide; Tetramethyltrithio-Carbamic anhydride; dimethyl-Carbamodithioic acid, anhydrosulfide; 1,1'-thiobis(N,N-dimethylthio-Formamide; Mono-Thiurad; Monothiuram; N,N,N',N'-Tetramethylthiuram monosulfide; Sulfide, bis(dimethylthiocarbamoyl); Sulfide, bis((dimethylamino)thioxomethyl); Tetramethyldithiocarbamic acid anhydrosulfide; Tetramethylthiuram sulfide; Tetramethylthiuramide sulfide; Tetramethylthiurammonium sulfide; Thionex; Thionex rubber accelerator; Thiuram monosulfide, tetramethyl-; Thiuram MM; Monosulfure de tetramethylthiurame; Tetramethylthiuramonosulfide;
SMILES
CLASSIFICATION	RUBBER ACCELERATORS /
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	yellow to brownish powder
MELTING POINT	106 - 108 C
BOILING POINT
SPECIFIC GRAVITY	1.4
SOLUBILITY IN WATER	insoluble (soluble in acetone, benzene, ethylene dichloride, Carbon Disulfide)
pH
VAPOR DENSITY
AUTOIGNITION	>200 C
REFRACTIVE INDEX
NFPA RATINGS	Health: 2, Flammability: 1, Reactivity: 0
FLASH POINT	150 C
STABILITY	Stable under ordinary conditions
APPLICATIONS
Tetramethylthiuram monosulfide (TMTM) is used as a secondary accelerator with thiazoles, guanidines, sulfenamides and dithiocarbamates. It is used as a fungicide, and insecticide.
SALES SPECIFICATION
APPEARANCE	yellow to brownish powder
ASSAY	95.0% min
MELTING POINT	101 C min
SIEVE ANALYSIS	0.1% max (+ 150 µm)
HEAT LOSS	0.5% max
OIL ADDITIVE	1.0 - 2.0%
ASH	0.5% max
TRANSPORTATION
PACKING	25kgs in Bag
HAZARD CLASS
UN NO.
GENERAL DESCRIPTION OF ACCELERATOR
Accelerator, in the rubber industry, is any of numerous chemical substances added with a curing agent to speed the vulcanization of rubber to enhance physical characteristics, e.g., strength, elasticity, and resistance to solvents, and to render it impervious to moderate heat and cold at lower temperatures. Accelerators are the most important organic materials containing sulfur and nitrogen, especially derivatives of benzothiazole. The most popular accelerators are delayed-action sulphenamides, thiazoles, thiuram sulphides, dithocarbamates and guanidines. Part or all of the sulphur may be replaced by a sulphur donor such as a thiuram disulphide. The sulphur produces cross-links between some of the solid bonds in the molecule. Vulcanization can also be accomplished with certain peroxides, gamma radiation, and several other organic compounds. The principal classes of peroxide crosslinking agents are dialkyl and diaralkyl peroxides, peroxyketals and peroxyesters. Other vulcanizing agents include amines for the crosslinking of fluorocarbon rubbers, metal oxides for chlorine-containing rubbers (notably zinc oxide for chloroprene rubber) and phenol-formaldehyde resins for the production of heat-resistant butyl rubber vulcanizates.
PRICE