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AdvanSix Alpha Methylstyrene (AMS)

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Supplier:  AdvanSix
Chemical Name: Alpha Methyl Styrene (AMS)
CAS Number: 98-83-9
Chemical Family: Styrenics
Labeling Claims: Ketone-free, Alcohol-free, Benzene-free, Kosher, High Purity, Low Water Content
Synonyms: 1-Methyl-1-Phenylethylene , 2-Phenyl Propylene , 2-Phenylpropane , 2-Phenylpropene , alpha-Methyl Styrene , AMS , Isopropenyl Benzene , Isopropyl Benzene , α-Methylstyrene
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TypeDocument Name
Technical Data Sheet
AdvanSix Alpha Methylstyrene (AMS) Technical Data Sheet
AdvanSix Alpha Methylstyrene (AMS) Technical Data Sheet
Technical Data Sheet

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Identification & Functionality

Chemical Family
Base Chemicals Functions
EC No.

AdvanSix Alpha Methylstyrene (AMS) Features & Benefits

Applications & Uses


Physical Form
Clear water white liquid
Typical Properties
ValueUnitsTest Method / Conditions
Colormax. 20D-1209-
Specific Gravity (25°C)0.903 - 0.908--
Specific Gravity (25°C)0.903 - 0.908-D-268
Inhibitor Content (p-TBC)10 - 20ppmD-6144
Phenol Contentmax. 20ppmD-3160
Puritymin. 99.3wt%D-6144
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature573.9 (1065)°C (°F)-
Boiling Point (760 mm)165.1 (329.2)°C (°F)-
Density (at 25°C (77°F))7.562lb/gal-
Explosive Limits (by volume in air)1.9 - 6.1--
Flash Point47.8 (118)°C (°F)Closed Cup
Flash Point57.8 (136)°C (°F)Open Cup
Melting Point-22.8°C-
Molecular Weight118.2--
Refractive Index (at 20°C)1.5386--
Specific Gravity (at 20°C/68°F))0.91--
Vapor Density (Air = 1.0)4.1--
Viscosity of Liquid (at 40°C (104°F))0.73cP-
Viscosity of Liquid (at 60°C (140°F))0.59cP-
Viscosity of Liquid (at 80°C (176°F))0.48cP-

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Packaging Type
AdvanSix Alpha Methylstyrene (AMS)