Bis(2-ethylhexyl) peroxydicarbonate EHP 16111-62-9

Bis(2-ethylhexyl) peroxydicarbonate
Trade Name: Initiator EHP
English Name: Bis(2-ethylhexyl) peroxydicarbonate
Chemical Name: Bis(2-ethylhexyl) peroxydicarbonate
Structural Formula:
Molecular Formula: C18H34O6
Molecular Weight: 346.5
Theoretical Active Oxygen Content: 4.62%
CAS: 16111-62-9
UN No. 3115
EINECS: 240-282-4
EHPC is a Class D liquid organic peroxide requiring temperature-controlled transport; cargo classification: 5.2.
Class 2 dangerous goods packaging; prohibited for rail and air transport.
Major decomposition products: CO₂, 2-ethylhexanol.
Safety parameters:
Half-life (measured in chlorobenzene solution):
0.1 hour: 83°C
1 hour: 64°C
10 hours: 47°C
Thermal Stability Data:
Self-Accelerating Decomposition Temperature (SADT): 5°C
Critical Temperature (Tem): -5°C
Control Temperature (Tc): -15°C
Storage Temperature (Tsmax/TSmin): -15/-25 °C
Technical Specifications:
Appearance: Clear liquid
Content: 75.0±1.0%
Inorganic and Organic Hydrolyzable Chlorine: < 100 mg/kg
Color: 20 Pt-Co max
Packaging:
Standard packaging is a 20 kg net weight PE plastic drum. Smaller packages can also be provided according to customer specifications.
Safety Precautions:
(1) Keep away from sources of ignition, open flames, and heat sources.
(2) Avoid contact with reducing agents (such as amines), acids, alkalis, and heavy metal compounds (such as accelerators, metal soaps, etc.).
(3) Please refer to the Material Safety Data Sheet (MSDS) for this product.
Applications:
(1) Polymerization initiator for vinyl chloride:
EHPC is one of the most commonly used initiators for the aqueous suspension polymerization of vinyl chloride. When blended with CUPN (isopropylphenyl neodecanoate peroxide), LPO (dilauryl peroxide), and other initiators, it enhances reaction activity. The polymerization temperature ranges from 40–65°C.
(2) Ethylene polymerization initiator:
EHPC is a low-temperature initiator for ethylene polymerization, commonly used in tubular processes at temperatures of 130–160°C. It can be combined with various other initiators to form blended initiator systems.
Storage Conditions:
Keep the packaging tightly sealed and store in a well-ventilated area. The maximum storage temperature is -15°C. Avoid contact with reducing agents such as amines, acids, alkalis, and heavy metal compounds (accelerators and metal soaps). Repackaging and handling within the warehouse are strictly prohibited.
Storage Stability:
When stored under the conditions specified by the manufacturer, the product is guaranteed to meet factory technical standards for three months.
Fire Extinguishing:
For small fires, use dry powder or carbon dioxide fire extinguishers, while simultaneously spraying with copious amounts of water to prevent reignition. For large fires, spray with copious amounts of water from a safe distance.