久久成人无码国产免费播放,久久人人爽天天玩人人妻精品

^{<style id="iudox"><th id="iudox"></th></style>}

<object id="iudox"><blockquote id="iudox"></blockquote></object>

R&D, production and sales of petrochemicals and their derivatives

PRODUCTS

Triphenyl phosphite Series

Crosslinkers, polymer monomer

Ethylbenzene,Diethylbenzene

Cumene, diisopropylbenzene

Refining additives Series

Specialty drier

α-Methylstyrene

Name:	Alpha-Methylstyrene
CAS NO：	98-83-9
Molecular weight:	118.18
Molecular formula:	C₉H₁₀
Structural formula:
Use:	An important crosslinker as modifier and reformer in producing polystyrene, unsaturated polyesters, ABS and other resins. It can improve the performances of the resins, such as resistance to heat, impact and sustain its strengthness and stability.

Specification

Item	Specifications	Test method
Apperance	Colorless transparent liquid	Visual
Alpha-Methylstyrene min.wt%	99.3	Chromatography
Polymer max.ppm	20	Visual
Inhibitor(p-TBC) max. ppm	20	Photoelectric colorimetry