Specifications

PROPERTIES AND LOGISTICS:

α-methylstyrene is a combustible, colourless liquid which is not easily soluble and has an unpleasant odour. In the air, AMS can form explosive mixtures. Upon lowering of the temperature or in the presence of strong acids even at room temperature, the substance tends to polymerise – as a result, the formation of high-molecular poly-α-methylstyrene is possible. When stored in mild steel, at a temperature of ≤ 35 °C, a-methylstyrene is storage stable for one year.

Specification Alphamethylstyrene

Parameter Limiting value Testing method
Alphamethylstyrene (without water) min. 99,6 weight % 81 - 109
Cumene max. 0.1 weight % 81 - 109
Acetophenone max. 0.03 weight % 81 - 109
Polymers test clear ASTM D 2121 - 07
Color max. 10 Hazen DIN ISO 6271
Stabilizer, tert. Butylbrenzcatechine ca. 10 - 20 ppm STM D 4590 - 06
Phenol max. 40 ppn 81 - 5