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Maleic anhydride;cis-Butenedioic anhydride;2,5-Furandione;2,5-furandion;anhydrid kyseliny maleinove;anhydride maleique;anhydride maleique (etat vitreux);dihydro-2,5-dioxofuran
108-31-6
formula : C4H2O3
molecular weight : 98.06
Boiling Point : 200 ° C
temperature : 53 ° C

Chinese name : maleic anhydride; 2,5-dione furans; Maleic Anhydride;失水苹果酸酐;马来酸酐;戊基钾黄药;丁烯二酸酐b_
英文名称: Maleic anhydride;cis-Butenedioic anhydride?,5-Furandione?,5-furandion;anhydrid kyseliny maleinove;anhydride maleique;anhydride maleique ( vitreux etat); dihydro-2 ,5-dioxofuran

nature Description : rhomboidal colorless needle or flake crystals. Flammable; Yi sublimation. 52.8 ° C melting point, boiling point of 202 ° C, 179.5 ° C (53.3kPa), 155.9 ° C (26.7kPa), 135.8 ° C (13.3kPa), 122 ° C (7.98kPa), 111. 8 ° C (not good), 95 ° C (2.67 kPa) and 78.7 ° C (1.33kPa.Conclusion), 63.4 ° C (0.67kPa), the self-ignition point of 447 ° C and relative density of 1.480 (20 / 4 ° C ). Water soluble form maleic acid. At 25 ° C, 100g solvent solubility : 227g acetone, ethyl acetate 65,536, 52.5g chloroform, benzene 50g. LOCA soluble in water as malic acid, ethanol and generates soluble ester, micro-soluble carbon tetrachloride and crude gasoline. Flash point (open cup) 110 ° C

production methods : the main production of maleic anhydride method benzene oxidation; Butene oxidation and n-butane oxidation, but still mainly benzene oxidation.
1. Benzene oxidation of benzene in V-Mo-P catalyst role, in the bed oxidation reaction occurred, generating maleic anhydride, the reaction temperature to 365 ° C (reaction bed FBC also available, but the high consumption). Then water absorption generation maleic acid, and then azeotropic distillation and dehydration scratching film to be finished. 1. Butane (or butylene) butane oxidation (or butylene) in V-Mo catalyst, by air or oxygen oxidation of maleic anhydride, the reaction temperature is 350-400 ° C. Then, as water absorption, dehydration and purification to be finished.

purposes : mainly for the production of unsaturated polyester resins; Alkyd resins; Malathion pesticide; High efficiency and low toxicity pesticides 4049; Effects of long-term iodine raw materials. Also coating; Malay rosin; Polymaleic anhydride; Maleic anhydride - styrene copolymer. Ink-producing agents; Auxiliary; Plasticizers and tartaric acid; Fumarate; Tetrahydrofuran other organic chemicals.



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More Detailed Data:
1) Maleic anhydride;2,5-Furandine;Butenedioic anhydride;cis-Butenedioic anhydride;Toxilic anhydride;cis-Butenedioic anhydride
2) maleic anhydride;cis-butenedioic anhydride
3) Maleic anhydride
4) cis-Butenedioic anhydride;maleic anhydride
5) 2,5-Furandione;MA;Maleic anhydride
6) maleic anhydride;cis-butenedioic anhydride
7) maleic anhydride
8) Maleic Anhydride
9) Maleic Anhydride
10) Maleic Anhydride
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