Product name: Di(2-ethylhexyl) Peroxydicarbonate (EHP)
CAS No.: 16111-62-9
EC No.: 240-282-4
Synonyms: Bis(2-ethylhexyl) peroxydicarbonate, Initiator EHP
Molecular Formula: C18H34O6Molecular Weight: 346.461. Quality Specifications (Standard Industrial Grade)
Typical Physical & Chemical Properties
Melting Point: < -57 ℃
Density (20 ℃): 0.995 ~ 1.001 g/cm³
Solubility: Insoluble in water; miscible with hydrocarbon solvents
Self-Accelerating Decomposition Temp. (SADT): 5 ℃
Control Temperature (Storage & Transport): ≤ -15 ℃
Half-life: (chlorobenzene) 10 h @ 47 ℃; 1 h @ 64 ℃; 0.1 h @ 83 ℃
Stability: Thermally sensitive. Risk of violent decomposition when overheated, contaminated or impacted
Quality Specifications (Standard Industrial Grade)
| Item | Specification | Test Method |
|---|---|---|
| Appearance | Clear colorless to pale yellow liquid | Visual Inspection |
| Assay | 75.0 ±1.0 % | Iodometric Titration |
| Theoretical Active Oxygen | 4.62 % | Calculated Value |
| Hydrolyzable Chloride | ≤ 100 mg/kg | Potentiometric Titration |
| Color (Pt-Co) | ≤ 20 Hazen | Platinum-Cobalt Method |
Product Characteristics
Low-temperature organic peroxide free-radical initiator belonging to peroxydicarbonate series.
Efficient initiator for low-temperature suspension polymerization of vinyl chloride (PVC).Widely matched with other peroxide initiators to optimize polymerization cycle and resin quality.
Must maintain strict low-temperature environment throughout storage, transfer and transportation.
⚠️ Incompatible with strong acids, alkalis, reducing agents, heavy metal compounds & amine accelerators.
Applications
Suspension polymerization initiator for PVC resin production
Copolymerization initiator for vinylidene chloride, acrylate & methacrylate monomersFree radical initiator for low-temperature polyolefin synthesis
Auxiliary curing agent for specialty elastomer & coating systems
Handling, Packing, Storage & Transportation
Standard package: 20 kg sealed HDPE plastic drum. All drums fitted with leakproof gaskets; marked with UN hazard label, UN 3115, product name, batch number. Avoid metal direct contact.
Store inside refrigerated warehouse, constant temperature maintained ≤ -15 ℃.Containers fully sealed; away from heat, open flame, sunlight and ignition sources.
Shelf life: 3 months under specified refrigerated conditions.
Classified as Class 5.2 Organic Peroxide, UN 3115, temperature-controlled dangerous goods.
Transport vehicle equipped with stable refrigeration system;
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