Tert-butyl isobutyrate peroxide (TBPI) 109-13-7

Tert-Butyl Peroxyisobutyrate
Trade Name: Initiator TBPI
English Name: Tert-Butyl Peroxyisobutyrate
Chemical Name: Tert-Butyl Peroxyisobutyrate
Structural Formula:
Molecular Formula: C8H16O3
Molecular Weight: 160.2
Theoretical Active Oxygen Content: 9.99%
CAS: 109-13-7
EINECS: 203-650-5
Major Decomposition Products: CO₂, tert-butanol, propane, propylene, 2-isopropyl-2-methylpropane.
Safety Parameters:
Half-life (measured in chlorobenzene solution):
0.1 hour: 118°C
1 hour: 98°C
10 hours: 79°C
Thermal Stability Data:
Self-Accelerating Decomposition Temperature (SADT): 30°C
Critical Temperature (Tem): 20°C
Control Temperature (Tc): 15°C
Storage Temperature (Tsmax): --/10°C
Technical Specifications:
Appearance: Clear liquid
Content: 50.0 ± 1.0%
Color: < 20 Pt-Co
TBHP Content: < 0.1%
Inorganic and Organic Hydrolyzable Chlorine: <100 mg/kg max
Packaging:
The standard packaging for TBPI is a 20 kg net weight PE plastic drum. Packaging according to customer specifications is also available.
TBPI is a Class D liquid organic peroxide requiring temperature-controlled transport. Goods classification: 5.2, UN Number: 3115, Class 2 dangerous goods packaging.
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. Ethylene polymerization initiator:
TBPI is a highly effective initiator for LDPE production via the tubular or batch process, with an initiation temperature range of 160–250°C.
2. Polymerization initiator for styrene:
TBPI can be used in styrene polymerization reactions at temperatures ranging from 85 to 105°C. It is primarily used in the copolymerization of styrene and the polymerization of acrylic acid and methacrylic acid. When used in the bulk and aqueous suspension polymerization of acrylic acid
and methacrylic acid, the polymerization temperature ranges from 80 to 160°C.
Storage Conditions:
Keep the packaging tightly sealed and store in a well-ventilated area. The maximum storage temperature is 25°C. Avoid contact with reducing agents such as amines, acids, bases, 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.