Chemical name: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
Another name: 2,5-dimethyl-2,5-di-tert-butyl peroxide hexane,Initiator 101
CAS No.: 78-63-7
Molecular formula: C16H34O4
Molecular-weight: 290.4
Brief introduction：
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane is a low volatile, yellowish transparent liquid, which is a dialkyl organic peroxide. Isododecane, hexane and other diluted minerals are available. Or it can be diluted with the solvent specified by the customer. It can also be diluted with inorganic compounds or polypropylene powder.
Main uses:
1. Polymer cross-linking agent: it is an organic peroxide cross-linking agent widely applicable to a variety of polymers, especially for polyethylene (LDPE, HDPE) and polymerization cross-linking agent of ethylene / vinyl acetate co-polymer. The cross-linking temperature is above 170 ℃, and there is no cross-linking effect below 140 ℃. The dosage is 0.5% - 3% (w / W). In some materials that are not easy to cross-link, the dosage is generally 1% - 5%.
2. It is a high-temperature vulcanizing agent for vinyl silicone rubber: at the same time, it is an excellent vulcanizing agent for other kinds of rubber. The rubber vulcanized with this product has the outstanding advantages of high tensile strength and high hardness.
3. It is an excellent degradation agent for Polypropylene Degradation: the degradation temperature is 200 ~ 220 ℃, and the dosage is 0.01 ~ 0.1%. Rheological polypropylene with low molecular weight and narrow molecular weight distribution and high melt index can be made. It can be used as an important initiator for high-speed spinning, coating, film and cast plastics. It is the preferred raw material for the production of cooling master-batch.
4. It is a high temperature curing agent for unsaturated polyester.
Main quality index
SN | Item | Specification |
1 | appearance | Colorless Transparent Liquid |
2 | Assay (%) | Min. 95.0 |
3 | active Oxygen content(%) | Min. 10.1 |
4 | Chroma | 50Pt-Co max |
Chemical Properties
SN | Item | properties |
1 | State | Liquid |
2 | Density(g/cm3) | ~0.870 |
3 | Refractive index Nd20 | ~1.422 |
4 | Flash Point (°C) | 50-100 |
5 | Freezing point (°C) | 1-10 |
6 | Theoretical active Oxygen content (%) | 11.02 |
Safety Data
SN | Item | Index |
1 | SADT(°C) | 80 |
2 | Alarm Temp(°C) | 75 |
3 | UN-No | 3105 |
4 | CN-No | 52005 |
Half Life data
SN | Item | Index |
1 | Activation Energy Ea(KJ/mole) | 155.50 |
2 | 10 hr.Half Life Temp | 115 |
3 | 1 hr.Half Life Temp | 134 |
4 | 1 min.Half Life Temp | 156 |
Solubility: soluble in alcohol, ester, ether, hydrocarbon and other organic solvents, insoluble in water.
Package: 25kg, PE bucket Packaging. but also provide the appropriate packaging according to customer requirements.
Storage: store in cold storage at 10-30 ° C. Store in a cool and ventilated space, and the warehouse temperature shall not exceed 30 ℃; Keep away from fire and heat. It shall be stored separately from acids, reducing agents, combustibles, combustible substance, etc. The lighting and ventilation facilities in the storage room are explosion-proof, and the switch is set outdoors Handle with care during handling to prevent damage of packaging and containers. It is forbidden to impact and oscillate. Pay attention to personal protection during sub packaging and handling.
Fire protection: This product may be severely decomposed due to heat, and it will cause severe fire. A small number of products should be quickly extinguishing with foam or dry powder extinguishers. The fire shall be quickly evacuated to a safe distance, put out with a water gun, and notify the fire department for treatment.
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