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STYRENE MONOMER |
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PRODUCT IDENTIFICATION |
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| CAS NO. |
100-42-5 |
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| EINECS NO. | 202-851-5 | |
| FORMULA | H2C=C6H5CH | |
| MOL WT. | 104.15 |
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H.S. CODE |
2902.50 | |
| TOXICITY | Oral rat LD50: 2650 mg/kg | |
| SYNONYMS | Vinyl benzene; Stryrene; Cinnamenol; Cinnamol; |
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| Cinnamene; Cinnamenol; Ethenylbenzene; Phenethylene; Vinylbenzene; Vinylbenzol; Phenylethene; Stirolo (Italian); Styreen (Dutch); Styren (Czech); Styrol (German); Styrolene; Styron; Styropol; Styropor; Vinylbenzen (Dutch); | ||
| DERIVATION |
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CLASSIFICATION |
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GENERAL DESCRIPTION |
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Styrene Monomer is the raw material for polystyrene and EPS, accounting for approximately two thirds of total styrene monomer production. The remaining styrene monomer is used as a feedstock in the production of SAN, ABS and the unsaturated polyester resins, SBR and polymer latex. Major downstream styrene markets (polystyrene and ABS) are under pressure as a result of oversupply and interpolymer competition, although rationalization of older, smaller styrenics units should help balance out the market. |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE |
Clear liquid |
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| MELTING POINT | -30 - 31 C | |
| BOILING POINT | 145 - 146 C | |
| SPECIFIC GRAVITY | 0.91 |
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| SOLUBILITY IN WATER |
< 1% |
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| pH | 7 | |
| VAPOR DENSITY | 3.60 | |
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AUTOIGNITION |
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NFPA RATINGS |
Health: 2; Flammability: 3; Reactivity: 2 | |
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REFRACTIVE INDEX |
1.5470 | |
| FLASH POINT | ||
| STABILITY | Stable under ordinary conditions. But forming peroxides in the absence of inhibitors. | |
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APPLICATIONS |
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Polystyrene, ABS resins, SB latex,unsaturated polyester resins, SB rubber, thermoplastic elastomers ,styrene-butadiene, styrene-maleic styrene-acrylic ester copolymers. |
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| SALES SPECIFICATION | ||
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APPEARANCE |
Clear liquid |
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PURITY |
99.7% min [G.C.] |
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| POLYMER |
10ppm max [ASTM D-2121] |
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CHLORIDES |
1ppm max [ASTM D-2747] |
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SULFUR |
1ppm max [ASTM D-2747] |
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| COLOR, APHA |
10max [ASTM D-1209] |
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BENZALDEHYDE |
100ppm max [ASTM D2119] |
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H2O2 |
50ppm max [ASTM D2340] |
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INHIBITOR(TBC) |
10 - 20ppm max [Badger Method 8] |
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TRANSPORTATION |
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| PACKING | 180kgs in drum | |
| HAZARD CLASS | Not regulated | |
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| OTHER INFORMATION | ||
| Hazard Symbols: XN, Risk Phrases: 10-36/38-20-23 | ||
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