IPP引发剂
Diisopropyl Peroxydicarbonate
CAS: 105-64-6
Molecular Formula: C8H14O6
IPP引发剂 - Names and Identifiers
IPP引发剂 - Physico-chemical Properties
| Molecular Formula | C8H14O6 |
| Molar Mass | 206.19 |
| Density | 1.080 |
| Melting Point | 12°C |
| Boling Point | 265.04°C (rough estimate) |
| Flash Point | 48.116°C |
| Water Solubility | 30.5mg/L at 20℃ |
| Vapor Presure | 17.1hPa at 20℃ |
| Odor | Disagreeable; pungent. |
| Exposure Limit | No exposure limit is set. Because of lowtoxicity and vapor pressure, the health hazardfrom its exposure does not arise. |
| Stability | Stability Shock-sensitive. Highly reactive. Heat sensitive. May explode or ignite in contact with organic material. |
| Refractive Index | 1.4034 |
| Physical and Chemical Properties | White crystalline solid at low temperature, colorless liquid at room temperature. |
| Use | Free-radical initiator, used as low-temperature initiator for the polymerization or copolymerization of vinyl chloride and other monomers |
IPP引发剂 - Risk and Safety
| UN IDs | UN 2133/2134 |
| Hazard Class | 5.2 |
| Packing Group | II |
IPP引发剂 - Reference Information
| LogP | 2.73 at 25℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| purpose | This product is a free radical initiator for the polymerization and copolymerization of vinyl chloride and other monomers. This product is particularly sensitive to temperature, impact and acid, alkali and other chemicals, easy to decompose, causing explosion. Strong irritation to eyes and mucous membranes. is a free radical initiator, used as low-temperature initiator for polymerization or copolymerization of vinyl chloride and other monomers This product is a free radical initiator for polymerization and copolymerization of vinyl chloride and other monomers. This product is particularly sensitive to temperature, impact and acid, alkali and other chemicals, easy to decompose, causing explosion. Strong irritation to the eyes and mucous membranes. Oral LD50 in rats was 29000 mg/kg. |
| production method | is obtained by reacting isopropyl chloroformate with sodium peroxide. First, the sodium hydroxide solution was added into a glass-lined reaction pan, and hydrogen peroxide was added dropwise thereto, and the temperature was maintained at about 10 ° C. To obtain a sodium peroxide solution. The solution was slowly dropped into isopropyl chloroformate and the temperature was strictly controlled at 10±2 °c to prevent explosion. After completion of the addition, stirring was continued until the end of the reaction. The layers were allowed to stand, the upper layer was milky white IPP, and the lower layer was the mother liquor containing alkali impurities. The lower layer was discharged, and the contents of the pot were washed with cold water stirring at 12 ° C., and the layers were allowed to stand, with water in the upper layer and IPP in the lower layer. Release IPP, add xylene diluted to 55-60% concentration, refrigerated at -4 ℃ for standby. Kg/ton of isopropyl chloroformate 1620 hydrogen peroxide 660 isopropyl chloroformate ([108-23-6]) can be obtained by phosgenation of isopropanol. Isopropyl alcohol and sodium hydroxide solution were added into a glass-lined reaction pot, and phosgene was passed through at 40 ° C. For 5-7 hours to obtain a transparent liquid of isopropyl chloroformate, which was washed with water and then stored at low temperature. From the reaction of chloroformate isopropyl Ester and sodium peroxide: first, sodium hydroxide solution is added into the enamel glass reaction pot, and hydrogen peroxide is added dropwise, and the temperature is maintained at about 10 ° C., to obtain sodium peroxide solution. The solution was slowly dropped into isopropyl chloroformate and the temperature was strictly controlled at (10±2) °c to prevent explosion. After completion of the addition, stirring was continued until the end of the reaction. The layers were allowed to stand, the upper layer was milky white IPP, and the lower layer was the mother liquor containing alkali impurities. The lower layer was discharged, and the contents of the pot were washed with cold water stirring at 12 ° C., and the layers were allowed to stand, with water in the upper layer and IPP in the lower layer. Release IPP, add xylene to dilute to 55% ~ 60%, refrigerated at -4 ℃ for standby. Attachment: preparation of isopropyl chloroformate isopropyl chloroformate (C4H7ClO2,[108-23-6]) can be added into enamel glass reaction pot by isopropyl alcohol and sodium hydroxide solution, at 40 ℃ through 5~7H, A transparent liquid of isopropyl chloroformate was obtained, which was washed with water and then stored at low temperature. |
| category | oxidant |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 2140 mg/kg |
| stimulation data | eye-rabbit 500 mg severe |
| explosive hazard characteristics | can be mixed with reducing agent, sulfur, phosphorus and other explosive; Friction, heat, impact exploitable |
| flammability hazard characteristics | combustion stimulus smoke |
| storage and transportation characteristics | warehouse ventilation at low temperature; Light loading and light unloading; With organic matter, reducing agent, sulfur, separate storage of phosphorus flammability |
| extinguishing agent | water mist |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:02:46
