Molecular Formula | C14H15NO2S |
Molar Mass | 261.34 |
Density | 1.25~1.35g/cm3 |
Melting Point | 90°C |
Boling Point | 422.6±28.0 °C(Predicted) |
Flash Point | 128.2°C |
Water Solubility | Insoluble in water |
Vapor Presure | 0.000308mmHg at 25°C |
Appearance | White or yellowish powder crystals |
Color | White to Light yellow |
pKa | -2.91±0.20(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.7500 (estimate) |
MDL | MFCD00072247 |
Physical and Chemical Properties | The product recrystallized from n-heptane was white crystals. |
Use | Mainly used for natural rubber, synthetic rubber, especially when combined with sulfenamide accelerators, constitute a good vulcanization system |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
RTECS | TI4290000 |
LogP | 2.82-3.56 at 25℃ and pH6.9 |
dissociation constant | 7.83-8.75 at 22 ℃ |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
product description | N-cyclohexylthiophthalimide is also called scorch retarder, early vulcanization inhibitor, anti-scorch agent CTP, anti-scorch agent PVI, at room temperature It is white, light yellow or light yellow-brown crystals, while the product recrystallized from n-heptane is white crystals. 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 produce chlorinated cyclohexane. Sulfurized with sulfur to obtain chlorothiocyclohexane. Finally, this product is prepared by reacting phthalimide with chlorothiocyclohexane in the presence of an acid absorber. It can be used for natural rubber and synthetic rubber, which can effectively prevent scorching of rubber materials during processing and improve production efficiency. At the same time, it has a recovery effect on the rubber that has been subjected to high heat or slightly scorched. N-cyclohexyl thiophthalimide is widely used in elastomers that can be vulcanized with sulfur, and it has a good anti-coke effect when combined with various general accelerators. With anti-scorch agent CTP, whether it is open or high-temperature rapid mixing, it can use a mixing process to effectively prevent scorch. It can be used with accelerators M, DM, TMTD and effective or semi-effective vulcanization systems to improve the properties of the compound. The production efficiency of calendering and extrusion can be improved. It is beneficial to improve the adhesion between rubber and brass-plated steel wire, and is widely used in various general-purpose rubbers and special rubbers such as nitrile rubber, ethylene propylene or ethylene propylene diene monomer rubber, butyl rubber and neoprene rubber. When storing, avoid too high and too low temperature and humidity, and place it in a ventilated and dry place to avoid heating and damp. Flammable, low toxic. |
reference quality standard | white or yellow crystal active ingredient content ≥ 97% melting point 90-94 ℃ toluene insoluble ≤ 0.50% ash ≤ 0.40% heating decrement ≤ 0.30% infrared spectrum is consistent with standard graph |
use | this product is a very effective anti-scorch agent, which has good anti-scorch effect on all sulfur vulcanized dienes and low unsaturation rubbers, such as natural rubber, styrene butadiene rubber, butadiene rubber, butyl rubber, chloroprene rubber, isoprene rubber, butadiene rubber, ternary ethylene propylene rubber, etc, moreover, its activity is not affected when used with other rubber additives. There are no undesirable side effects such as foaming and pollution. It can greatly improve the storage stability of the rubber compound and prevent natural vulcanization during storage. Compared with the previous anti-scorch agent, the effect is good, the dosage is less, the usual dosage is 0.1-0.5 parts. It is mainly used for natural rubber and synthetic rubber, especially when combined with sub-sulfonamide accelerators, forming a good vulcanization system It can prevent early vulcanization of rubber materials during processing, improve processing safety, and has almost no effect on vulcanization speed and vulcanized rubber properties. Because it can effectively prevent scorching, it is possible to operate at high temperature and high speed of the calender and the puller, and it can effectively use strong vulcanizing active agent to improve the production capacity of the vulcanizer and the total production capacity of the factory. It can greatly improve the storage stability of the rubber and prevent natural vulcanization during storage. It can be used with accelerator WILLING NS, WILLING M, WILLING DM, WILLING CBS and effective or semi-effective vulcanization system to improve rubber properties. |
Production method | It is obtained by the reaction of phthalimide and cyclohexyl sulfonyl chloride. It can also be condensed with phthalimide after chlorination of dicyclohexyl disulfide. |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |