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Maleic Anhydride

(1) Properties:
It’s a kind of white crystallization, with irritating odor, irritative to eyes and skin, it is soluble in alcohol, acetone and ethyl ether etc, but hard soluble in petrol ether or carbon tetrachloride, soluble in water. Crystallizing and freezing point: 52.4; Boiling point: 202℃(sublimate), solid density: 1.48g/cm³.
(2) Usages:
It is a kind of organic synthetic raw material, its application: In plastic industry, used as plasticizer; In paper-making, used as treatment agent; In synthetic resin industry, used as unsaturated polyester resin and alkyd resin; In painting field, used to make insulating paint and white porcelain;  In pesticide industry, used to make Marathon and hi-efficiency low toxicity 4049; In pharmaceutical industry, used to make long effect sulfa drugs; In grease industry, used to make anti-corrosion agent; And in organic industry, used to make fumaric acid, THF, r-Butyrolactone, 1.4-butylene glycols etc.
(3) Quality Index

Items
Parameters
Purity (%)≥
99.5
Crystallization point ℃≥
52.4
Ashes (%)≤
0.005
Iron content (based on Fe) PPm ≤
5
Smelting color degree (Pt.- Cobalt), # ≤
25
(4) Storage & Package:
Industrial MA needs to be packed in net 25kg or 50kg as an individual unit, with inner PE-lined poly bags, in open mouth iron drums, wooden drums or polyester bags, PE bag heat-sealed, or tightened with string, stored at cool, ventilated and dry places. Remember to keep away from rain, sunshine and fire. The shelf time may be 3 months.
(5) Toxicity & Protection
It is toxic, and detrimental to respiratory tract and irritative to eyes, noses and skin. Not to handle it by naked hand, in non-airtight places, the operators ought to wear protective articles.
(6) Output Capacity
25,000 metric tons/ per year

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