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PEROXAN OPV is 1,1,3,3-Tetramethylbutyl peroxypivalate 75%, Solution in odorless white spirits.PEROXAN OPV may be used for the (co)polymerization of ethylene.

Chemical Name: 2,2-Di(tert-butylperoxy)butane

CAS Number: 2167-23-9

Functions: Curing Agent, Initiator

Chemical Family: Peroxides

Compatible Polymers & Resins: Polyethylenes (PE)

Synonyms: 1,1′-(1-Methylpropylidene)bis[2-(1,1-dimethylethyl) peroxide], 2,2-Bis(tert-butyldioxy)butane, 2,2-Bis(tert-butylperoxy)butane, 2,2-Bis(tert-butylperoxybutane), 2,2-Di-tert-butylperoxybutane, NSC 5626, sec-Butylidenebis[tert-butyl peroxide]

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Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
CAS No.
2167-23-9
EC No.
218-507-2

Applications & Uses

Compatible Polymers & Resins
Plastics & Elastomers End Uses
Recommended Applications

Polymerization of ethylene : PEROXAN OPV may be used for high pressure in both autoclave and tubular processes, usually in combination with other peroxides of varying degrees of activity. Temperature range: 130 to 180°C Light-off temperature at 2300 bar: 145°C

Properties

Physical Form
Appearance
Clear Liquid
Typical Properties
ValueUnitsTest Method / Conditions
Active oxygen assayappx. 5.21%
Molecular Weight230.4
Peroxide assayappx. 75%

Technical Details & Test Data

Half Life Information
t ½ 10 h 1 h 1 min
bei48°C 66°C 103°C

 

Major Decomposition Products
  • 2,4,4-Trimethyl-2-pentanol
  • Isobutane
  • isobutene
  • Carbon dioxide

Safety & Health

Safety Characteristics
SADT 20°C
Emergency temperature 10°C
Control temperature 0°C

 

Packaging & Availability

Packaging Information
  • 25kg container

Storage & Handling

Shelf Life
3 Months
Product Handling and Storage
  • Maximum storage temperature (Ts max) : -15°C
  • Minimum storage temperature (Ts min) : -25°C
  • Storage stability as from date of delivery : 3 months
  • Organic Peroxides are more or less stable products but will decompose under the influence of heat. To minimize a loss of quality during storage, it is important that the recommended maximum storage temperature is not exceeded. If a minimum storage temperature is given, an undesirable process such as a solidification or phase separation, is known to occur below this temperature.
  • Please refer to the material safety data sheet (MSDS) for information concerning safe storage, use and handling of PEROXAN OPV.