The product, High Quality Tetramethylthiuram Disulfide Cas 137 - 26 - 8 With Best Price, is a chemical compound known by its CAS number 137 - 26 - 8. Tetramethylthiuram Disulfide, also referred to as TMTD, has a molecular formula of C₆H₁₂N₂S₄ and a molecular weight of approximately 240.43 g/mol. It appears as a white to yellowish - white powder or crystals under normal conditions. This product is highly soluble in chloroform, benzene, and carbon disulfide, slightly soluble in ethanol and ether, and insoluble in water. It has a melting point around 155 - 156°C and a relative density of about 1.43 - 1.46. Its high - quality nature ensures a high level of purity, which is crucial for its various applications.
1. Rubber Industry: Tetramethylthiuram Disulfide is widely used as a super - accelerator in the rubber vulcanization process. It can accelerate the cross - linking of rubber molecules, improving the mechanical properties of rubber products such as tensile strength, hardness, and resistance to aging. It is suitable for various types of rubber, including natural rubber, styrene - butadiene rubber, and nitrile rubber.
2. Agriculture: It serves as a fungicide and insecticide in the agricultural field. It can effectively control a variety of plant diseases caused by fungi, such as powdery mildew, rust, and scab. It also has some insecticidal properties, which can protect crops from pests.
3. Analytical Chemistry: In the field of analytical chemistry, it can be used as a reagent for the determination of certain metals. Its specific chemical properties allow it to react with specific metal ions, facilitating their identification and quantification.
1. Rubber Vulcanization: When using it in the rubber industry, it should be carefully mixed with other rubber additives according to the specific rubber formulation. The recommended dosage usually ranges from 0.2 - 2 parts per hundred parts of rubber (phr). The mixing process should be carried out under appropriate temperature and pressure conditions to ensure uniform dispersion in the rubber matrix.
2. Agriculture: As a fungicide or insecticide, it is typically formulated into a solution or suspension. The concentration of the solution should be prepared according to the specific target pests or diseases and the type of crops. It can be applied by spraying on the surface of plants, making sure to cover all parts of the plants evenly.
3. Analytical Chemistry: In analytical chemistry, accurate weighing and proper dissolution in suitable solvents are required. The reaction conditions, such as pH, temperature, and reaction time, should be strictly controlled to obtain reliable analytical results.
1. Rubber Manufacturing Company A: Company A produces high - performance rubber seals. By using Tetramethylthiuram Disulfide as an accelerator, they were able to significantly reduce the vulcanization time. Previously, the vulcanization process took about 30 minutes, but after using TMTD, it was reduced to 15 minutes. This not only increased the production efficiency but also improved the quality of the rubber seals. The seals showed better resistance to compression set and higher tensile strength, meeting the strict requirements of their automotive customers.
2. Agricultural Farm B: Farm B was facing a severe problem of powdery mildew on their grapevines. They applied a solution of Tetramethylthiuram Disulfide at a concentration of 0.5% by spraying. After a few applications, the powdery mildew was effectively controlled. The grapevines recovered, and the yield and quality of the grapes improved. The farmers were able to harvest a larger quantity of high - quality grapes, which increased their economic income.
3. Analytical Laboratory C: Laboratory C needed to determine the content of copper ions in a water sample. They used Tetramethylthiuram Disulfide as a reagent. By strictly controlling the reaction conditions, they were able to accurately measure the copper ion concentration. The results were consistent with the reference values, demonstrating the reliability of using TMTD in analytical applications.
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