Terpane Hydrogen Peroxide (PMHP) 80-47-7

P-Menthane Hydroperoxide
Trade Name: Initiator PMHP
English Name: P-Menthane Hydroperoxide
Chemical Name: P-Menthane Hydroperoxide
Chemical Structure:
Molecular Formula: C10H20O2
Molecular Weight: 172.26
Theoretical Active Oxygen Content: 9.28%
CAS: 80-47-7
Safety Parameters:
Half-life (measured in a 0.2 mol benzene solution):
0.1 hour: 176°C
1 hour: 151°C
10 hours: 128°C
Thermal Stability Data:
Self-Accelerating Decomposition Temperature (SADT): 80°C
Critical Temperature (Tem): 75°C
Storage Temperature (Tsmax): 30/38°C
Technical Specifications:
Purity: 50.0–55.0%
Active oxygen content: 4.65–5.12%
pH of extract: ≥4.0
Cu²⁺: 5 mg/kg max
Mn²⁺: 5 mg/kg max
Packaging:
Standard packaging consists of polyethylene drums with a net weight of 190 kg. IBC packaging is also available, and smaller packages can be customized according to customer specifications.
PMHP is a Class F liquid organic peroxide. Cargo classification: 5.2; UN Number: 3109; Class 2 dangerous goods packaging. IMDG Code: 5229.
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:
PMHP is widely used as a polymerization initiator for styrene and its copolymers (e.g., SAN, ABS, SBR). It also serves as a polymerization initiator for acrylic acid and methacrylic acid.
Storage Conditions:
Keep the packaging tightly sealed and store in a well-ventilated area at a maximum temperature of 35°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 six 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.