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Industrial Chemicals
No.95-92-1
Colorless oily liquid. Relative density 1.0785 (20/4 ° C). The melting point -40.6 ℃. Boiling point 185.4 ℃. The refractive index ND (20 ° C) 1.4101. Smallation heat 284.5J/g. Bi -hot capacity 1.81J/(G · ℃). Mixed with common solvents such as ethanol, ether, acetone and other common solvents. Slightly dissolved in water and gradually decomposed by water.
Application
In the pharmaceutical industry, diethyl oxalate is mainly used for phenobarbital, bucky card malonic ester, triethylamine, and new drug intermediates.
In the pharmaceutical industry, diethyl oxalate is azathioprine, sulphadoxine-pyrimethamine, carboxy benzene ester of benzyl penicillin drugs such as penicillin, b pp oxygen intermediates.
In the dye industry, diethyl oxalate can be used as the products such as plastic, dye intermediates, and as a solvent for cellulose and spices.
Specification
| Items | Unit | Lower Limit | Upper Limit |
| Appearance | Colorless transparent liquid | ||
| Ester content | % | 99.0 | |
| Acidity (H2C2O4) | % | 0.15 | |
| Water | % | 0.10 | |
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