United Initiators TBPPI-75-AL tert-butyl peroxypivalate 927-07-1

Product Name: TBPPI-75-AL (tert-butyl peroxypentyl ester)

CAS number: 927-07-1

Molar mass: 174.2 g/mol

Content: 75% tert-butyl peroxypentyl ester, soluble in aliphatic hydrocarbons

Structural formula: h 3 c c o ch 3 ch 3 o c c c ch 3 ch 3 o ch 3

Product Description:

• Colorless, mobile liquid containing 75% of tert-butyl peroxyterpentyl ester sensitized to inhibition via aliphatic hydrocarbons.
• This branch of fatty peroxides is commonly used as an initiator (source of free radicals) for the polymerization of monomers such as ethylene, vinyl chloride, and vinyl acetate.

Technical data:

• Appearance: colorless liquid
• Peroxide content: approx. 75% (mass %)
• Active Oxygen Content: approximately 6.881 TP3T (mass %)
• Inhibitors: High-boiling aliphatic hydrocarbons
• Density (20°C): approx. 0.85 g/cm³
• Viscosity (20°C): approx. 1.7 mPa - s
• Refractive index (20°C): approx. 1.414
• SADT: approx. 25°C
• Low temperature storage stability: can be stored as liquid below -15°C
• Recommended storage temperature: -15°C to -5°C
• Maximum transportation temperature: 0°C
• Storage stability (active): 3 months from date of delivery

Half-life data:

• 10 hours/1 hour/1 minute (0.1 m/benzene): 56/74/110°C

Applications:

• For the polymerization of high pressure ethylene in combination with peroxides with higher thermal stability. Suitable for temperatures in the range 130-190°C.
• Characteristics: Highly efficient, liquid, easily mixed with high boiling point aliphatic hydrocarbons.
• For vinyl chloride, it can be used for bulk or suspension polymerization in the temperature range of 50-65°C. Dosage: 0.04-0.11 TP3T as supplied.
• Suitable for polymerization of other monomers such as acrylonitrile, (meth)acrylates and vinyl acetate in the temperature range of 50-80°C. Dosage: 0.04-0.11 TP3T as supplied. Combined with more thermally stable peroxides the residual monomer content in the polymer can be reduced.

Standard Packaging:

• 25kg HDPE drum

Disclaimer:

• The information and technical advice provided is based on in-house testing, is intended to understand the product and application, and reflects our current knowledge and experience.
• The information should not be construed as a warranty of the specific properties of the products described or their suitability for a particular application, nor does it provide complete instructions for use.
• The information does not provide any warranty for the product and shelf-life characteristics and is not responsible for our legal liability or other legal liabilities, including existing third-party intellectual property rights, in particular patents.
• We reserve the right to make any changes based on technological advances 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. It is the responsibility of the user to carry out careful inspection and testing of incoming goods to verify their suitability for the intended use.