maleic acid anhydride
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| Post Date: | May 07,2013 |
| Expiry Date: | Nov 03,2013 |
| Detailed Description: |
Cas No. :108-31-6
Maleic anhydride was traditionally manufactured by the oxidation of benzene or other aromatic compounds. As of 2006, only a few smaller plants continue to use benzene; due to rising benzene prices, most maleic anhydride plants now use n-butane as a feedstock. In both cases, benzene and butane are fed into a stream of hot air, and the mixture is passed through a catalyst bed at high temperature. The ratio of air to hydrocarbon is controlled to prevent the mixture from catching on fire. Vanadium pentoxide and molybdenum trioxide are the catalysts used for the benzene route, whereas vanadium and phosphorus oxides are used for the butane route. |
| CAS Registry Number: | 108-31-6 |
| Synonyms: | ;2,5-Furandione;cis-Butenedioic anhydride;Sodium n-amylxanthate;MaleicAnhydride;MA;furan-2,5-dione;Maleic acid anhydride; |
| Molecular Formula: | C4H2O3 |
| Molecular Weight: | 98.05808 |
| Molecular Structure: | 
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| Hazard Symbols: |  C:Corrosive; |
| Risk Codes: | R22:; R34:; R42/43:; |
| Safety Description: | S22:; S26:; S36/37/39:; S45:; |
| Company: | nanjing jinghua company ltd [ China ] |
| Contact: | liqian |
| Tel: | 85-025-6552124 |
| Fax: | |
| Email: | gaobing77@hotmail.com |
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