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AMS (Alpha Methyl Styrene)

IUPAC name
Prop-1-en-2-ylbenzene
Synonyms
2-Phenylpropene, Alpha-methyl-styrene, Alpha-methylstyrol
Molecular formula
C9H10
CAS number
98-83-9
Catalog

Overview

Standing for “alpha methyl styrene,” AMS is also known as isoprophenyl benzene and is used to polymerize diverse types of styrene.

Usage

Adduct for enhancing the heat-resistance of ABS resins that are used to make exterior frames of automobiles and electronic devices and protective coating; ingredient for paracumilphenol, an adduct for thermoplastic and polycarbonate resins, etc.

Attributes

Sales Specifications

Sales Specification Table
Packing Units 180kg / 200ℓ steel Drum
ISO Tank, Bulk
Purity, wt.% 99.0 Min.
Color, Pt/Co 15 Max.
Sales Specification Table
Water Content, ppm 400 Max.
Phenol Content, ppm 20 Max.
 
   

Typical Properties

Typical Properties Table
Appearance Clear, Liquid
Molecular Weight 118.2
Odor Pungent, Aromatic
Boiling Point, ℃ 165.1 (329.2 ℉)
Freezing Point, ℃ -9.8 (14.4 ℉)
Flash Point, ℃ 53.9 (129 ℉)
Autoignition Temperature, ℃ 573.9 (1,065 ℉)
Specific Gravity @20℃ *[H2O=1] 0.91
Typical Properties Table
Critical Pressure (atm) 33.1
Critical Temperature, ℃ 383.85 (723 ℉)
Heat of Vaporization @B.P, BTU/lb 141.2
Specific Heart, cal/g/℃ Vapor : 0.29
Liquid : 0.49
Surface Tension @20℃, Dyne/㎝ 32.40
Refractive Index @20℃ 1.53865
Solubility in Water @20℃ Negligible

※ As for information on handling as well as Environmental / Safety / Health information,
please click the link to the MSDS at the top of this page and see the MSDS in the Technology Database.

Contact

담당 부서 표
Nature of inquiries Department Location Telephone Email
Sales/distribution (outside Korea) Phenol Chain Overseas Sales Team Seoul +82-2-6961-3465
Sales/distribution (in Korea) Phenol Chain Domestic Sales Team Seoul +82-2-6961-3457
Technical Support Quality Management Team (Plant I) Yeosu +82-61-688-3863

(company-specific) Approved EXporter

This system has been introduced to provide support for time and cost savings at the time of issuing a certificate of origin as an increasing number of countries have signed free trade agreements.

A system where the customs authorities provide any exporter approved as capable of proving the origin of the goods with such benefits as simplified procedures for the issuance of certificates of origin, omission of the submission of attached documents, etc.

* Korea-EU FTA : In the case of the exportation of any consignment consisting of originating products whose total value exceeds 6,000 euros, only an approved exporter can self-issue a certificate of origin.
* Korea-ASEAN, China, India, Singapore, Vietnam FTA : Submission of attached documents may be omitted when applying for the issuance of a certificate of origin.
* Korea-EFTA FTA : When an exporter self-issues a certificate of origin, such exporter’s signature may be omitted.

Differences between the company-specific AEX and the product-specific AEX.

  • ㅇThe company-specific approved exporter system is a blanket authorization system where the procedures for issuing a certificate of origin are operated in a simplified way for all the free trade agreements and all the export goods.
  • ㅇThe product-specific approved exporter system is a system where the procedures for issuing a certificate of origin are operated in a simplified way after granting authorization as an approved exporter for each relevant FTA and the six digits of each relevant HS code.
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