Tetramethylthiuram Disulfide
Also known as: Acceleratorthiuram
TMTD is a general accelerator for natural rubber and synthetic rubber, and it is widely used as fungicide and seed soaking agent in agriculture. Industrial synthesis mainly includes peroxide synthesis method [1], air oxidation synthesis method. In addition, the process of using sodium hypochlorite as oxidant and using electrophoresis to synthesize accelerator TMTD has also been reported. The above synthetic methods generally have the disadvantages of high cost of synthetic products. With reference to relevant literature, dimethylamine and carbon disulfide were proposed as raw materials. The process of synthesizing TMTD with hydrogen peroxide as oxidant and water as solvent has achieved high yield (98%) and good product quality (reaching the international first-class product level), and effectively reduced environmental pollution.
| Payment & Shipping Terms | Supply Capacity | ||
|---|---|---|---|
| Payment Terms: | T/T, WU | Production Capacity: | 700T/year |
| Min. Order: | 1T | Packing: | according to the customer's requirements |
| Means of Transport: | Ocean, Air, Land | Delivery Date: | 7 days |
Tetramethylthiuram Disulfide
CAS 137-26-8
TMTD is a general accelerator for natural rubber and synthetic rubber, and it is widely used as fungicide and seed soaking agent in agriculture. Industrial synthesis mainly includes peroxide synthesis method [1], air oxidation synthesis method. In addition, the process of using sodium hypochlorite as oxidant and using electrophoresis to synthesize accelerator TMTD has also been reported. The above synthetic methods generally have the disadvantages of high cost of synthetic products. With reference to relevant literature, dimethylamine and carbon disulfide were proposed as raw materials. The process of synthesizing TMTD with hydrogen peroxide as oxidant and water as solvent has achieved high yield (98%) and good product quality (reaching the international first-class product level), and effectively reduced environmental pollution.
We can customize according to customer's requirement
If you have any question pls mail us or call us.
| CAS Number | 137-26-8 |
|---|---|
| Molecular Formula | C6H12N2S4 |
| Molecular Weight | 240.43 |
| Place of Origin | Zhejiang,China (Mainland) |
Send an inquiry for Tetramethylthiuram Disulfide
Related products
AcceleratorD
It is mainly used as a medium speed accelerator of natural rubber and synthetic rubber. It is commonly used as an activator of thiazole, tyrum and hypoiodide accelerators. When used in combination with accelerators DM and TMTD, it can be used for continuous vulcanization. When the second accelerator of thiazole accelerant is used, the aging resistance of vulcanizate will be decreased, so appropriate antioxidant must be added. In neoprene, the product has the function of plasticizer and plasticizer. This product is not suitable for white or light colored products and rubber products in contact with food. Mainly used for manufacturing tires, rubber plates, sole, industrial products, hard rubber and thick wall products. The dosage of the second accelerator is 1-2 phr, and the dosage of the second accelerator is 0.1-0.5 phr. Chromium casein diphenylguanidine, a derivative of diphenylguanidine, is a highly effective antirust agent.
Bis(dimethylthiocarbamyl) Sulfide
This product is a non discolored, non polluting super accelerator, mainly used in natural rubber and synthetic rubber. The activity is about 10% lower than that of willingtmtd, and the tensile strength of vulcanizate is also slightly lower. The effect of 121 ο C is higher than that of thiuram disulfide and dithiocarbamate accelerators. When using this product, the sulfur consumption range is large. This product can be used alone or in combination with thiazole, aldehyde amine, guanidine and other accelerators. It is the active agent of thiazole accelerators. It has the effect of delayed vulcanization in the general type (gn-a type) butadiene rubber. When it is used with dithiocarbamate in latex, the tendency of early vulcanization can be reduced. This product can't decompose active sulfur and can't be used for sulfur free coordination.
Cyclohexylthiophthalimide
C yclohexylthiophthalimide is also known as delayed coking agent, early curing inhibitor, anti coking agent CTP and anti coking agent PVI. It is white, light yellow or light yellow brown crystal at room temperature, while the product recrystallized from n-heptane is white crystal. Soluble in acetone, benzene, toluene, ether, ethyl acetate and ethyl acetate, slightly soluble in gasoline, insoluble in kerosene and water, soluble in hot carbon tetrachloride, ethanol and heptane. Cyclohexane is reacted with hydrochloric acid to form cyclohexane chloride. Chlorothiocyclohexane was prepared by sulfurization with sulfur. Finally, the product was prepared by the reaction of phthalimide and chlorothiocyclohexane in the presence of acid absorbent. It can be used in natural rubber and synthetic rubber to effectively prevent rubber from burning in the process of processing and improve production efficiency. At the same time, it can restore the rubber material that has been subjected to high heat or slight scorch. N-cyclohexylthiophthalimide is widely used in sulfur vulcanizable elastomers. It has good anti coking effect when used with various general accelerators. When CTP is used, whether it is open or high temperature rapid internal mixing, one-stage mixing process can be used to effectively prevent coke burning. It can be used with accelerator M, DM, TMTD and effective or semi effective curing system to improve the properties of rubber compound. It can improve the production efficiency of calendering and extrusion. It is beneficial to improve the adhesion between rubber and brass plated steel wire. It is widely used in all kinds of general rubber and special rubber such as NBR, EPDM or EPDM, butyl rubber and chloroprene rubber. During storage, the temperature and humidity which are too high and too low shall be avoided, and the product shall be placed in a ventilated and dry place to avoid heat and moisture. Flammable, low toxic.
Di(benzothiazol-2-yl) Disulfide
Dibenzothiazole disulfide is a chemical substance with molecular formula of c14h8n2s4 and molecular weight of 332.47. As a general accelerator for natural rubber, synthetic rubber and recycled rubber, it is mainly used to manufacture high-purity DM (medical grade) for tires, inner tubes, rubber belts, rubber shoes and general industrial products, which is an important pharmaceutical intermediate for the manufacture of cephalosporin anti-inflammatory drugs.
Disulfiram
Tetraethyl thiuram disulfide, or dithiolon, is used to treat chronic alcohol addiction because of its immediate response to alcohol. When we drink alcohol (ethanol), ethanol will be converted into acetaldehyde through the action of alcohol dehydrogenase in the liver, acetaldehyde will be converted into acetic acid through the action of acetaldehyde dehydrogenase, and finally acetic acid will be converted into H20 and CO2 through the citric acid circulation to be discharged from the body. However, dithione blocks the conversion of acetaldehyde to acetic acid by inhibiting the action of acetaldehyde dehydrogenase, resulting in acetaldehyde accumulation and physical discomfort, which should be used in cooperation with the doctor's prescription. In addition to alcohol, dithione is also used in cocaine withdrawal therapy because it prevents the breakdown of dopamine.
Ethylene Thiourea
It can be used as an accelerant of chloroprene rubber, chlorosulfonated polyethylene and acrylate adhesive with a reference dosage of 0.25-1.5 phr. It is also used as an accelerant of polysulfide rubber. It can also be used as an accelerator of dicyandiamide curing agent for epoxy adhesive with a reference dosage of 8 phr.
Lithopone
Lithopone is a white crystalline powder. It is a mixture of zinc sulfide and barium sulfate. The more zinc sulfide it contains, the stronger the covering power and the higher the quality. The density is 4.136-4.34g/cm3, insoluble in water. In case of acid, it is easy to decompose to produce hydrogen sulfide gas, which will not work in case of hydrogen sulfide and alkali solution. When exposed to ultraviolet light in the sun for 6-7 hours, it turns light gray, and it still returns to its original color when placed in the dark. It is easy to oxidize in the air and agglomerate and deteriorate after being affected with moisture.
N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine
This product is a kind of pollution antioxidant. In addition to its good anti oxygen effect, it also has the functions of anti ozone, anti bending and cracking, and inhibiting harmful metals such as copper and manganese. Its performance is similar to that of antioxidant 4010NA, but its toxicity and skin irritation are less than 4010NA, and its solubility in water is better than 4010NA (washing loss rate: 4010NA is 50%, while 4020 is only 15-20%). It can be widely used in the preparation of tire, rubber belt and many other industrial rubber products. The general dosage is 0.5-1.5%. This product is not suitable for making light colored products because of its serious pollution. Antioxidant 4020 is one of the main varieties of p-phenylenediamine antioxidant. At present, p-phenylenediamine antioxidant is the main excellent product commonly used in rubber industry at home and abroad, and it is also the development direction of antioxidant in the future.
