Physical Properties
Half-Life Data
Decomposition Products: tert-butyl alcohol, acetic acid, di-tert-butyl ether, methane, ethane
Aliases & Synonyms
- Other names
- TBPA
- Also supplied under these brand names*
- Trigonox F-C50 · Lupersol 70(Commercial Reference)*
* Brand names are trademarks of their respective owners and are referenced for identification purposes only. LAAP products are not manufactured or endorsed by these companies.
Overview
TBPA is a medium-temperature peroxyester initiator used for the high-pressure polymerization of ethylene (LDPE), the polymerization of styrene and acrylates, and the curing of unsaturated polyester resins. Its 10-hour half-life temperature of 100°C makes it a workhorse initiator for processes run in the 120-140°C window, where it provides a good balance between reactivity and safe handling.
Technical Selection Guide
Product Overview
tert-Butyl peroxyacetate (TBPA, CAS 107-71-1) is a medium-temperature peroxyester with 12.11% active oxygen and a 10-hour half-life temperature of 100°C. It is used for the high-pressure polymerization of ethylene (LDPE), the polymerization of styrene and acrylates, and the curing of unsaturated polyester resins.
Half-Life & Temperature Profile
TBPA's half-life series (139℃ at 0.1 h, 119℃ at 1 h, 100℃ at 10 h) places the process window at roughly 120-160°C. It is a common mid-cascade initiator, chosen because its decomposition temperature fills the gap between the fast peroxydicarbonates and the slow dialkyl peroxides. TBPA is normally supplied as a solution in an odourless solvent — benzene, odourless mineral oil or isododecane — so it can be metered as a liquid and dispersed evenly in the reaction mass.
Selection Within the Same Family
Within the peroxyester family, TBPA (100°C) sits between TBPMH (CAS 13122-18-4, 94°C) and TBPB (CAS 614-45-9, 103°C), and above TBPEH (CAS 3006-82-4, 73°C). Choose TBPA when the process runs 120-160°C and a liquid, solvent-diluted initiator is preferred. For lower-temperature duties step down to TBPEH; for the highest peroxyester temperatures step up to TBPB.
Quality, REACH & Documentation
TBPA is a clear, colourless liquid, supplied as 70% or 50% minimum active content with an activation energy of 149.36 kJ/mol. Typical controls are assay, active oxygen, colour and solvent content. Each batch ships with a CoA; REACH-compliant SDS and a TDS with the half-life table are available.
Packaging, MOQ & Lead Time
Standard packing is 20 kg polyethylene drums, with custom sizes on request. SADT is 70°C with a recommended storage range of -15°C to 10°C, so cold-chain shipping applies. Minimum order quantity starts at 25 kg, and quotations are returned within 24 hours.
Ready to Get Started?
Contact our team to discuss your organic peroxide requirements and discover how we can support your business
Lanzhou, Gansu, China