Chemical Name

• Tert-amyl peroxy benzoate
• Other name：TAPB

Structure

• Formula：C₁₂H₁₆O₃
• MW：208.3
• CAS No.：4511-39-1

Introduction

• TAPB is a yellowish transparent liquid. It belongs to ester-type organic peroxide. It is mainly used as an initiator for the polymerization and copolymerization of styrene, acrylonitrile, acrylate and methyl acrylate. It is also widely used as a raw material for the synthesis of other organic peroxides.

Specifications

•  Appearance : Colorless or slightly yellow transparent liquid
• Assay (%) : ≥ 95.0
• Active Oxygen (%) : ≥ 7.30

Properties

• State : Liquid
• Density (g/cm³) : 1.01
• Flash Point (°C) : 43
• Active Oxygen (%) : 7.68

Half-life Data

• Ea (kJ/mol) : 143.00
• 10h Half-life (°C) : 100
• 1h Half-life (°C) : 120
• 1 min Half-life (°C) : 162

Solubility

• Soluble in alcohols, esters, ethers, hydrocarbons and other organic solvents, insoluble in water.

Safety Data

• SADT (°C) : 60
• Alarm Temperature (°C) : 55
• UN No. : 3103

Packaging

• 20 kg
  PE bucket packaging

Storage

• Stored in a cool and ventilated place at 8–30°C.