Product Name: TBPB CAS Number: 614-45-9 Appearance : Pale yellow, free-flowing liquid consisting of technically pure tert-butylperoxy benzoate. Main Applications: Used as an initiator (radical source) for the polymerization of monomers such as ethylene, styrene, and methacrylates. Technical Data:

Peroxide Content: Approximately 99% w/w
Active oxygen content: approx. 8.16% w/w
No sensitizer
Density (20°C): approx. 1.04 g/cm³
Viscosity (20°C): approx. 8 mPa·s
Refractive index at 20°C: approx. 1.499
Critical temperature (SADT): approx. 60°C
Freeze Stability: Freezing point below approximately +10°C
Recommended storage temperature: 10°C to 40°C
Shelf life: 6 months from the date of delivery

Applications:

Ethylene: Used as a polymerization initiator for high-pressure ethylene, in combination with peroxides of varying reactivity. Temperature range: 200–250°C.
Styrene: Used as a polymerization initiator for bulk or suspension styrene polymerization. Temperature range: 100–140°C. Recommended dosage: 0.02–0.1% of the undiluted solution.
Other Monomers: Used as a polymerization initiator for (methyl)acrylates and allyl monomers, used in conjunction with more reactive peroxides when necessary, particularly diphenylbutyric peroxide or tert-butyl per-2-ethylhexanoate (TBPEH).Temperature range: 100–140°C. Recommended dosage: 0.1–1% of the undiluted solution.

Packaging: 25-kilogram high-density polyethylene drums. Disclaimer: The above information and all further technical recommendations reflect our current knowledge and experience based on internal testing using local raw materials and are intended to introduce our products and their applications.This information should not be construed as a guarantee of the specific performance of the described product or its specific applications, nor should it be interpreted as providing instructions for use. This information does not provide any guarantee regarding product performance or shelf life, nor does it constitute any warranty regarding our legal or other liabilities, including matters related to existing third-party intellectual property rights, particularly patent rights.We reserve the right to make any changes in light of technical progress or further developments. The use and application of our products based on our technical recommendations are beyond our control and are the sole responsibility of the user. The user is not relieved of the obligation to conduct careful inspections and tests to verify that the products received are suitable for the intended application.

United Initiators TBPB (tert-Butyl benzoate peroxide) 614-45-9

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