Dicumyl peroxide
Dicumyl peroxide - Names and Identifiers
| Name | Dicumyl peroxide |
| Synonyms | VAROX DCP-R Curing agent DCP dicumenyl peroxide BIS(A A-DIMETHYLBENZYL) PEROXIDE Dicumyl peroxide(technically pure) BIS(1-METHYL-1-PHENYLETHYL)PEROXIDE DicumylperoxideinPolydimethylsiloxane 1,1'-(dioxydipropane-2,2-diyl)dibenzene Bis(alpha,alpha-dimethylbenzyl)peroxide BIS(ALPHA,ALPHA-DIMETHYLBENZYL) PEROXIDE |
| CAS | 80-43-3 |
| EINECS | 201-279-3 |
| InChI | InChI=1/C6H14O2.C6H6/c1-5(2)7-8-6(3)4;1-2-4-6-5-3-1/h5-6H,1-4H3;1-6H |
Dicumyl peroxide - Physico-chemical Properties
| Molecular Formula | C18H22O2 |
| Molar Mass | 270.37 |
| Density | 1.56 g/mL at 25 °C (lit.) |
| Melting Point | 39-41 °C (lit.) |
| Boling Point | 130°C |
| Flash Point | >230°F |
| Water Solubility | insoluble |
| Vapor Presure | 15.4 mm Hg ( 38 °C) |
| Vapor Density | 9.3 (vs air) |
| Appearance | flakes |
| Color | White |
| BRN | 2056090 |
| Storage Condition | 2-8°C |
| Stability | Stability Reacts violently with reducing agents, heavy metals, concentrated acids, concentrated bases. May ignite organic materials on contact. May decompose violently upon exposure to sunlight |
| Sensitive | 4: no reaction with water under neutral conditions |
| Refractive Index | 1.5360 |
| Physical and Chemical Properties | Density 1.56 melting point 38-41°C boiling point 130°C water-soluble insoluble |
| Use | It can be used as initiator of monomer polymerization, curing agent, crosslinking agent, curing agent, flame retardant additive of polymer materials |
Dicumyl peroxide - Upstream Downstream Industry
| Raw Materials | Perchloric acid Sodium sulfite Cumene |
Dicumyl peroxide - Reference Information
| LogP | 5.6 at 25℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | can be used as initiator of monomer polymerization, curing agent, crosslinking agent, curing agent of polymer materials, flame retardant additives, such as used as pharmaceutical intermediates natural rubber, synthetic rubber, polyethylene resin vulcanizing agent and crosslinking agent, not used to vulcanize butyl rubber. The crosslinking agent of polyethylene used as cable sheath in Japan accounts for 70%, and the other part is used for crosslinking foam of EVA, rubber vulcanization, curing crosslinking agent of unsaturated polyester, etc. As a cable insulation material, cross-linked polyethylene not only makes polyethylene have excellent insulation and processability, but also improves heat resistance. 100 parts of polyethylene using this product 2.4 parts, DCP can make EVA foam material to form fine and uniform cells, while improving the heat resistance and weather resistance. This product is also used as a polymer initiator. This product on mice oral LD503500 ~ 4000mg/kg. It is weakly irritating to human skin. But the product of the decomposition of isopropyl alcohol benzene and acetophenone have strong irritation. natural rubber, synthetic rubber, polyethylene resin with curing agent and cross-linking agent, not used for curing butyl rubber. The crosslinking agent of polyethylene used as cable sheath in Japan accounts for 70%, and the other part is used for crosslinking foam of EVA, rubber vulcanization, curing crosslinking agent of unsaturated polyester, etc. As a cable insulation material, cross-linked polyethylene not only makes polyethylene have excellent insulation and processability, but also improves heat resistance. 100 parts polyethylene using 2.4 parts of the product, DCP allows the EVA foam to form a fine uniform foam while improving heat resistance and weather resistance. The product is also used as an initiator for high polymers. The oral administration of LD503500-4000mg/kg to mice. It is weakly irritating to human skin. But the product of the decomposition of isopropyl alcohol benzene and acetophenone have strong irritation. natural rubber, synthetic rubber, vulcanizing agent and crosslinking agent for polyethylene resin. Polymerization Catalysts. It is mainly used as a curing agent for natural rubber and synthetic rubber, an initiator for polymerization reaction, and can also be used as a crosslinking agent for polyethylene resin. Cross-linked polyethylene used as cable insulation material, not only has excellent insulation and processing performance, but also can improve its heat resistance, 100 parts of polyethylene using curing agent dcp2.4. The curing agent DCP enables the ethylene-vinyl acetate (EVA) foam to form fine and uniform cells while improving the heat resistance and weather resistance of the article. In addition, it is also used as a curing crosslinking agent for non-drinking and polyester. widely used in natural rubber, synthetic rubber, polyethylene resin and other polymer materials, the most excellent initiator, curing agent, crosslinking agent. |
| production method | is obtained by reduction and condensation of cumene hydroperoxide. Cumene hydroperoxide was reduced to benzyl alcohol with sodium sulfite at 62-65 °c. Then, in the presence of perchloric acid catalyst, benzyl alcohol was condensed with cumene hydroperoxide at 42-45 ° C. To obtain dicumyl peroxide condensation solution. After washing with 10% sodium hydroxide solution, vacuum distillation and concentration, it is dissolved in anhydrous alcohol, crystallized below 0 ℃, filtered and dried to obtain curing agent DCP. The content of industrial products was 97%. Raw material consumption (kg/t) cumene hydroperoxide (32-35%) 1500 sodium sulfite 978 perchloric acid 2 |
| category | oxidant |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 4100 mg/kg |
| explosive hazard characteristics | can be mixed with reducing agent, sulfur, phosphorus, etc, impact exploitable |
| flammability hazard characteristics | flammable in case of organic matter, reducing agent, sulfur, phosphorus and other flammable substances, as well as open flame, light and impact; combustion-induced 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 |
| fire extinguishing agent | water and sand mist |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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