2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
CAS: 78-63-7
Molecular Formula: C16H34O4
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane - Names and Identifiers
| Name | 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane |
| Synonyms | luperox VAROX DBPH Trigonox 101 LUPEROX 101XL VAROX DBPH-50 2,5-DIMETHYL-2,5-DI(T-BUTYL-PEROXY)HEXANE 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane 2,5-Dimethyl-2,5-di(tert-butyl peroxy)hexane 2,5-DIMETHYL-2,5-BIS(TERT-BUTYLPEROXY)HEXANE 2,5-Dimethyl-2,5-bis[(2-methyl-2-propanyl)peroxy]hexane Di-tert-butyl 1,1,4,4-tetramethyltetramethylene diperoxide DBPH |
| CAS | 78-63-7 |
| EINECS | 201-128-1 |
| InChI | InChI=1/C32H66O2/c1-25(2,3)29(13,14)19-21-31(17,27(7,8)9)23-33-34-24-32(18,28(10,11)12)22-20-30(15,16)26(4,5)6/h19-24H2,1-18H3 |
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane - Physico-chemical Properties
| Molecular Formula | C16H34O4 |
| Molar Mass | 290.44 |
| Density | 0.877g/mLat 25°C(lit.) |
| Melting Point | 6 °C |
| Boling Point | 55-57°C7mm Hg(lit.) |
| Flash Point | 149°F |
| Water Solubility | immiscible |
| Vapor Presure | 0.002Pa at 20℃ |
| Storage Condition | 2-8°C |
| Stability | Unstable. May contain an inhibitor. Incompatible with strong oxidizing agents, acids, reducing agents, organic materials, powdered metals. |
| Refractive Index | n20/D 1.423(lit.) |
| Physical and Chemical Properties | Light yellow oily liquid. The melting point is 8 ℃, the relative density is 0.8650, and the refractive index is 1.4185(28 ℃). Flash point 35-88 °c. Decomposition temperature 140-150 °c (moderate rate). Insoluble in water. There is a special odor. |
| Use | Used as initiators and degradants for polymers, vulcanizing agents for silicone rubber, polyurethane rubber, ethylene-propylene rubber and other rubbers |
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane - Risk and Safety
| Risk Codes | R8 - Contact with combustible material may cause fire R36/37/38 - Irritating to eyes, respiratory system and skin. R7 - May cause fire R36/38 - Irritating to eyes and skin. R10 - Flammable R41 - Risk of serious damage to eyes R37/38 - Irritating to respiratory system and skin. R68 - Possible risk of irreversible effects R38 - Irritating to the skin R2 - Risk of explosion by shock, friction, fire or other sources of ignition |
| Safety Description | S7 - Keep container tightly closed. S17 - Keep away from combustible material. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S3/7 - S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S14A - S47 - Keep at temperature not exceeding... S14 - Keep away from ... (a list of incompatible materials will follow). S36/37 - Wear suitable protective clothing and gloves. S35 - This material and its container must be disposed of in a safe way. |
| UN IDs | UN 3108 5.2 |
| WGK Germany | 1 |
| RTECS | MO1835000 |
| HS Code | 29012990 |
| Hazard Class | 5.2 |
| Packing Group | II |
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane - Reference Information
Open Data Unverified Data
| LogP | 7.34 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | used as a vulcanizing agent for silicone rubber, polyurethane rubber, ethylene-propylene rubber and other rubbers; it is also useful as a cross-linking agent for polyethylene and as a hardener for unsaturated polyesters. This product does not have the disadvantages of easy gasification of di-tert-butyl peroxide and odor generation of dicumyl peroxide. It is an effective high temperature curing agent for vinyl silicone rubber. The tensile strength and hardness of the product are high, and the tensile and compression deformation are relatively low. The product is toxic, flammable and explosive, and is a Class I dangerous goods. also known as double two five 101 curing agent (DHBP-95), as an effective high temperature curing agent for vinyl silicone rubber, polyethylene Rubber, Ethylene Propylene Rubber crosslinking agent, can improve the tensile strength and hardness of the product, the elongation and compression deformation are low, and the odor after vulcanization is the smallest in the alkyl peroxide. Its usage can be mixed in the compound when mixing. vulcanizing agents for silicone rubber, polyurethane rubber, ethylene-propylene rubber and other rubbers, and also for polyethylene cross-linking agents and unsaturated polyester. This product does not have the disadvantage of easy gasification of di-tert-butyl peroxide and the odor of dicumyl peroxide. It is an effective high-temperature vulcanizing agent for vinyl silicone rubber. The tensile strength and hardness of the product are both high, and the tensile and compression deformation are relatively low. crosslinking agent for natural or synthetic rubber; Crosslinking agent for thermoplastic polyolefin used as initiator and degradation agent for polymer, silicone rubber, polyurethane rubber, vulcanizing agent for ethylene-propylene rubber and other rubbers |
| production method | will be prepared from acetylene with acetone and potassium hydroxide in xylene, the product obtained by the reaction in butanol solvent is hydrolyzed to obtain 2, 5-dimethylhexyndiol. The reaction was catalyzed by skeleton nickel and hydrogenated at a pressure of 2.5MPa to obtain 2, 5-dimethylhexanediol, which was then peroxidized with hydrogen peroxide. The peroxidation was carried out in the presence of sulfuric acid at a temperature not exceeding 15 ° C. The reaction product was filtered, washed with 10% ammonium sulfate, 7% sodium bicarbonate and dried to give 2, 5-dimethylperoxyhexane. In the presence of sulfuric acid, it is further tert-butylated with tert-butyl alcohol (at 30-35 ° C.), and the reaction product is layered, washed, dried and filtered to obtain sulfidizing agent bis 25. The purity of industrial vulcanizing agent double 25 is greater than or equal to 80%. Raw material consumption (kg/t) acetone 2000 tert-butyl alcohol 910 hydrogen peroxide (42-48%) 2100 |
| category | oxidant |
| toxicity grade | poisoning |
| Acute toxicity | abdominal injection-mouse LDL0: 1700 mg/kg |
| explosive hazard characteristics | mixed with reductant, sulfur, phosphorus, etc, friction can burst |
| flammability hazard characteristics | is combustible in combination with organic matter, reducing agent, combustible sulfur and phosphorus; combustion-induced smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; With organic matter, reducing matter, combustible matter, strong acid stored separately |
| extinguishing agent | Sand, carbon dioxide |
Last Update：2024-04-09 19:43:38
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