CAS 102-08-9 Accelerator CA;Diphenyl Thiourea;rapid vulcanization accelerator

Name: Accelerator CA
CAS: 102-08-9
Usage: This product is used as a rapid vulcanization accelerator. The critical temperature for vulcanization is 80°C. Care must be taken during mixing to avoid early vulcanization. The activity is higher when the temperature is above 100°C. The use of this product requires the addition of zinc oxide. The resulting product is tough and has excellent tensile strength and flexural fatigue resistance, but the product will change color when exposed to light. It is mainly used in natural latex and neoprene dairy products and is also used in the manufacture of vulcanized capsules, water tires, tire sealants, wires and cables, industrial products, rubber shoes, etc. The general dosage is 3.5~4 parts, combined with 1.5~2 parts of sulfur. This product is also used as a heat stabilizer for polyvinyl chloride by emulsion polymerization. It is especially suitable for soft products. The general dosage is 0.2~0.5 parts. It will not color the plastic products, but it cannot prevent them from discoloring by light. It cannot be used together with lead, cadmium, and other stabilizers, otherwise it will cause discoloration of the product. This product is an intermediate for medicines and dyes and a chemical reagent for the determination of osmium and rhodium products.
Physicochemical properties: gray powder or white shiny flaky crystals. Melting point: gray powder 146°C, white flaky crystal 154~156°C. Relative density 1.32. Easily soluble in alcohol, ether, acetone, cyclohexanone, tetrahydrofuran, etc., slightly soluble in various plasticizers used for polyvinyl chloride, and insoluble in water and carbon disulfide. Dissolve in alkaline solution: precipitate in acidic solution. Bitter taste. Flammable. Glows when rubbed-minimal toxicity.

Safety: This product is less toxic and may cause insensitivity and peripheral nerve paralysis due to poisoning, but it does not cause distortion or cancer. This product produces phenyl mustard oil at temperatures above 160°C, which is highly irritating to eyes, skin, and mucous membranes.
This product is stored in a cool, dry, and ventilated place. Protect against fire, moisture, and sun during storage and transportation.