bis(dimethylthiocarbamyl)monosulfide
Tetramethyl thiuram monosulfide
CAS: 97-74-5
Molecular Formula: C6H12N2S3
bis(dimethylthiocarbamyl)monosulfide - Names and Identifiers
bis(dimethylthiocarbamyl)monosulfide - Physico-chemical Properties
| Molecular Formula | C6H12N2S3 |
| Molar Mass | 208.37 |
| Density | 1.37 |
| Melting Point | 107-111 °C (lit.) |
| Boling Point | 260.9±23.0 °C(Predicted) |
| Flash Point | 156°C |
| Water Solubility | insoluble |
| Solubility | Chloroform, Methanol (Slightly) |
| Vapor Presure | 0.002Pa at 25℃ |
| Appearance | Yellow powder |
| Color | Yellow |
| BRN | 1775650 |
| pKa | 0.93±0.50(Predicted) |
| Storage Condition | Amber Vial, Refrigerator |
| Refractive Index | 1.4825 (estimate) |
| MDL | MFCD00014870 |
| Physical and Chemical Properties | light yellow crystalline powder. Melting point 104 °c. Soluble in ethanol, chloroform, benzene, acetone, dichloroethane, carbon disulfide, cold-soluble ether, insoluble in water, gas oil. Odorless and tasteless. Storage stability. Melting Point: 106-110°C |
| Use | Rubber accelerator, mainly used in the manufacture of cables, tires, rubber tubes, adhesive tape, color products and transparent products, footwear, heat-resistant products. |
bis(dimethylthiocarbamyl)monosulfide - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R43 - May cause sensitization by skin contact R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S24 - Avoid contact with skin. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37 - Wear suitable gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | WQ1750000 |
| TSCA | Yes |
| HS Code | 29303000 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 oral in rat: 450mg/kg |
bis(dimethylthiocarbamyl)monosulfide - Reference Information
| LogP | 1.17 at 20℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | Rubber vulcanization accelerator tetramethylsulfides (TMTM) is a kind of green environmental protection rubber vulcanization accelerator. It can be used not only as a curing agent, but also as an effective activator of thiazole and sulfenamide accelerators, and has the function of a secondary accelerator, so that the dispersion of thiazole and sulfenamide is better, the product is transparent. |
| Application | tetramethylsulfoxide is characterized by difficult scorch, high safety, can reduce the amount of sulfur, improve leveling, wide range of applications, the product heat resistance, aging resistance, widely used in natural rubber, Diene synthetic rubber, isobutyl rubber, three yuan isopropyl rubber, W type neoprene, can be used for the preparation of wires, cables, rubber boots, toys, transparent products, waterproof cloth, medical rubber products, gloves, etc. |
| Application | rubber accelerator, mainly used in the manufacture of cables, tires, rubber tubes, adhesive tapes, color products and transparent products, footwear, heat-resistant products, etc. used in the manufacture of cables, tires, rubber tubes, adhesive tape and other bright color and transparent products This product is a non-discoloration, non-polluting Super accelerator, mainly used for natural rubber and synthetic rubber. The activity is about 10% lower than that of the accelerator WILLING TMTD, and the tensile strength of the vulcanized rubber is also slightly lower. The critical sulfidation temperature of 121 μC has higher aftereffect than that of thiuram disulfide and dithiocarbamate accelerator, and has excellent scorch resistance. When using this product, sulfur dosage range is larger. This product can be used alone, can also be used with thiazole, aldehyde Amine, guanidine and other accelerators, is the active agent of thiazole accelerator. In general purpose (GN-A type) butyl rubber has the effect of delayed vulcanization. When used in combination with dithiocarbamate in the latex, the tendency of the compound to be cured at an early stage can be reduced. This product can not be decomposed into active sulfur, can not be used for sulfur-free coordination. |
| production method | The tetramethylthiuram disulfide was desulfurized with sodium cyanide to obtain the product. |
| category | pesticide |
| toxicity grade | high toxicity |
| Acute toxicity | intraperitoneal-rat LD50: 383 mg/kg; Oral-mouse LD50: 818 mg/kg |
| flammability hazard characteristics | flammable; Thermal decomposition of toxic nitrogen oxides, sulfur oxide smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from food raw materials |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, water mist |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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