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PEROXAN HX-Paste 45 SI

1 of 176 products in this brand
PEROXAN HX-Paste 45 SI is 2,5-Dimethyl-2,5-di-(tert-butylperoxy)-hexane 45%, Paste in silicone oil.PEROXAN HX-Paste 45 SI is used for the crosslinking of slicone rubber.

Chemical Name: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane

CAS Number: 78-63-7

Functions: Curing Agent

Chemical Family: Peroxides

Compatible Polymers & Resins: Silicones

Synonyms: (1,1,4,4-Tetramethyltetramethylene)bis(tert-butyl peroxide), 1,1′-(1,1,4,4-Tetramethyl-1,4-butanediyl)bis[2-(1,1-dimethylethyl) peroxide], 2,5-Bis(tert-butyldioxy)-2,5-dimethylhexane, 2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane, 2,5-Di-tert-butyl-2,5-dimethylhexyl peroxide, 2,5-Di(t-butylperoxy)-2,5-dimethylhexane, 2,5-Di(tert-butylperoxy)-2,5-dimethylhexane, 2,5-Dimethyl-2,5-bis(1,1-dimethylethylperoxy)hexane, 2,5-Dimethyl-2,5-bis(tert-butyldioxy)hexane, 2,5-Dimethyl-2,5-bis(tert-butylperoxide)hexane, 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexane, 2,5-Dimethyl-2,5-di(t-butylperoxy)hexane, 2,5-Dimethyl-di(tert-butyl)peroxyhexane, 2,5-Dimethylhexane-2,5-di-tert-butylperoxide, 2,5-Methyl-2,5-di(tert-butylperoxy)hexane

Technical Data SheetSafety Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Peroxides

Chemical Name

2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane

Plastics & Elastomers Functions

Curing Agent

CAS No.
78-63-7
EC No.
201-128-1
Technologies

Elastomers,

Plastics

Product Families

Elastomers — Elastomer Additives

Catalysts, Initiators & Crosslinkers

Plastics — Polymer Additives

Catalysts, Initiators & Crosslinkers

Features & Benefits

Materials Features

Scorch Resistant

Applications & Uses

Markets

Agriculture & Feed,

Building & Construction,

Industrial

Applications

Agriculture & Feed — Agricultural Films

Pipes & Hoses

Building & Construction — Building Materials

Pipes & Plumbing

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts,

Other Industrial Applications

Compatible Polymers & Resins

Silicones

Plastics & Elastomers End Uses

Belts & Belt Repair,

Conveyor Parts,

Pump Parts

Recommended Applications

PEROXAN HX-Paste 45 SI is recommended for the crosslinking of silicone rubber. Rubber compounds containing PEROXAN HX-Paste 45 SI have excellent scorch safety. Safe processing temperature (t2): 135°C Typical crosslinking temperature (t90): 175°C The safe processing temperature t2 is defined as the temperature, at which the scorch time is longer than 20 minutes. The typical crosslinking temperature t90 is defined as the temperature at which 90% of the crosslinks in the compound are formed within about 12 minutes.

Properties

Physical Form

Paste

Appearance
Yellowish Paste
Typical Properties
ValueUnitsTest Method / Conditions
Active oxygen assayappx. 4.96%—
Density at 20°C0.94g/cm³—
Molecular Weight290.4——
Peroxide assayappx. 45%—

Regulatory & Compliance

Certifications & Compliance

BfR Recommendation,

FDA 21 CFR 177.2600

Technical Details & Test Data

Half Life Information
t ½ 10 h 1 h 1 min
bei118°C 147°C 171°C

 

Major Decomposition Products
  • Acetone
  • Ethane
  • Methane
  • tert Amyl-alcohol
  • tert-Butanol

Safety & Health

Safety Characteristics
#N/A
Safety Characteristics
Flash point >90°C
SADT 80°C

 

Packaging & Availability

Packaging Type

Pails

Packaging Information
  • 25kg pail

Storage & Handling

Shelf Life
6 Months
Product Handling and Storage
  • Maximum storage temperature (Ts max) : 40°C
  • Minimum storage temperature (Ts min) : 10°C
  • Storage stability as from date of delivery : 6 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 HX-Paste 45 SI.