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Nouryon Trigonox A-W70 Acrylics tert-Butyl hydroperoxide, 70% solution in water
Categories: Other Engineering Material
Material Notes: Trigonox A-W70 is an initiator (70% active ingredient in water) for (co)polymerization of (meth)acrylates.

CAS number: 75-91-2

EINECS/ELINCS No: 200-915-7

Applications: Polymer production: Trigonox A-W70 can be used as an initiator in bulk, aqueous solution and emulsion polymerization of styrene, acrylates and methacrylates. The polymerization can be initiated by radicals generated by the thermal decomposition of Trigonox A-W70 above 110°C or through a redox mechanism at low temperatures. Effective organic reducing agents are ascorbic acid and sodium formaldehyde sulfoxylate, possibly combined with heavy metal compounds such as cobalt or iron salts. Thermoset: Trigonox A-W70 may be used as an initiator for the room temperature cure of promoted unsaturated polyester and vinyl ester resins, and elevated cure of non-promoted resins.

Information provided by Nouryon
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Physical PropertiesOriginal ValueComments
Density 0.935 g/cc
@Temperature 25.0 °C
Half-life 0.100
@Temperature 207 °C		[hr]
 1.00
@Temperature 185 °C		[hr]
 10.0
@Temperature 164 °C		[hr]
Viscosity 4.1 cP
@Temperature 20.0 °C
Molecular Weight 90.1 g/mol
Storage Temperature 0.000 - 35.0 °C
 
Processing PropertiesOriginal ValueComments
Shelf Life 3.00 Month
 
Descriptive Properties
AppearanceClear colorless liquid
Assay69.0-71.0 %
Color<20 Pt-Co / APHA
Content12.25-12.61 %Active oxygen
Content (%)17.76Active oxygen content peroxide

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PNOURY1150 / 286673




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