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Description |
White, odorless granules or crystalline powder. It is soluble in alcohol, slightly soluble in water and in ether, and very slightly soluble in chloroform |
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Chemical Name |
Trans-butenedioic acid |
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Molecular Formula |
C4H4O4 |
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Structural Formula |
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Molecular Weight |
116.07 |
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Solubility |
(g/100g) |
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in water at 25 |
0.7 |
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in water at 100 |
9.8 |
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in alcohol at 30 |
5.76 |
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in dimethyl benzene at 20 |
0.03 |
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Specification |
Assay(as C4H4O4) |
99.5%~100.5%(anhydrous basis) |
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Melting Point |
294oC~300oC |
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Arsenic(as As) |
3mg/kg Max |
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Heavy Metals(as Pb) |
10mg/kg Max |
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Maleic Acid |
0.10% Max |
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Residue on Ignition |
0.1% Max |
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Water |
0.5% Max |
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