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Styrene Monomer
Sales Specification
2
Property Units Value Method
Purity, minimum Weight % 99.90 ASTM D5135
Ethylbenzene, maximum Weight % 0.0085 ASTM D5135
Color, maximum Pt-Co Scale 10 ASTM D5386
Polymer Content, maximum mg/kg 10 ASTM D2121
1
Inhibitor (t-Butyl Catechol) mg/kg 10-15 ASTMD4590
Aldhydes (as Benzaldehyde), maximum Weight % 0.01 ASTM D2119
Peroxides (as H2O2), maximum mg/kg 50 ASTM D2340
Benzene, maximum mg/kg 1 ASTM D5135M

Typical Properties
2
Property Units Value Method
Purity Weight % 99.93 ASTM D5135
Ethylbenzene Weight % 0.0045 ASTM D5135
Color Pt-Co Scale 8 ASTM D5386
Polymer Content mg/kg 1 ASTM D2121
1
Inhibitor (t-Butyl Catechol) mg/kg 13 ASTMD4590
Aldhydes (as Benzaldehyde) Weight % 0.002 ASTM D2119
Peroxides (as H2O2) mg/kg 5 ASTM D2340
Benzene mg/kg <1 ASTM D5135M
Chlorides mg/kg <1 ASTM D5808
Sulfur mg/kg <1 ASTM D3961
Flash Point (PMCC) °C 31 ASTM D93

1 Applies to all methods of shipment unless additional inhibitor is specified.

MSDS #CPC00089 Revision Date December, 2004

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