| DIETHYL OXALATE | ||
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PRODUCT IDENTIFICATION
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| CAS NO. | 95-92-1 |
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| EINECS NO. | 202-464-1 | |
| FORMULA | C2H5OOCCOOC2H5 | |
| MOL WT. | 146.15 | |
| H.S. CODE | ||
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TOXICITY
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| SYNONYMS | Oxalic acid, Diethyl ester; Diethyl ethanedioate; | |
| Ethanedioic acid, diethyl ester; Ethyl oxalate; Diethylester kyseliny stavelove; Diethyl ester of oxalic acid; Diethyloxalat (German); Oxalato de dietilo (Spanish); Oxalate de diéthyle (French); | ||
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DERIVATION
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CLASSIFICATION
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PHYSICAL AND CHEMICAL PROPERTIES
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| PHYSICAL STATE | Clear oily liquid | |
| MELTING POINT | -39 C | |
| BOILING POINT | 186 C | |
| SPECIFIC GRAVITY | 1.075 - 1.085 | |
| SOLUBILITY IN WATER | slightly (Decomposes) | |
| SOLVENT SOLUBILITY | Soluble in miscible with alcohols, ether and other common organic solvents | |
| pH |
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| VAPOR DENSITY | 5.03 | |
| AUTOIGNITION |
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| NFPA RATINGS | Health: 2; Flammability: 2; Reactivity: 0 | |
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REFRACTIVE INDEX
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1.408 - 1.409 | |
| FLASH POINT |
76 C
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| STABILITY | Stable under ordinary conditions. Sensitive in moisture | |
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APPLICATIONS
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| Diethyl Oxalate is used as a solvent for paint stripping and resins; Cleaner for polymeric residues; pigment dispersant. It is used as an intermediate to produce barbiturates (a group of ureides that act as nonselective central nervous system depressant) and dyes. | ||
| SALES SPECIFICATION | ||
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APPEARANCE
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Clear liquid | |
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ASSAY
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99.0% min
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WATER
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0.1% max
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| SPECIFIC GRAVITY | 1.075 - 1.085 | |
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ACIDITY
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0.05% max
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COLOR (APHA)
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20 max
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| TRANSPORTATION | ||
| PACKING | 200kgs in drum | |
| HAZARD CLASS | 6.1 (Packing Group: III) | |
| UN NO. |
2525
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| OTHER INFORMATION | ||
| European Hazard Symbols: XI, Risk Phrases: 36, Safety Phrases: 23C | ||
| GENERAL DESCRIPTION OF OXALIC ACID | ||
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Oxalic Acid (also called Ethanedioic Acid) is a colourless, crystalline, toxic organic compound belonging to the family of dicarboxylic acids; melting at 187 C; soluble in water, alcohol, and ether. It occurs in the form of its metal salts (usually calcium or potassium) in many plants. It is commercially manufactured by heating sodium formate in the presence of an alkali catalyst to form sodium oxalate, which should be converted to free oxalic acid when treated with sulfuric acid. It is also prepared by oxidizing carbohydrates with nitric acid, by heating saw dust with caustic alkalies or by fermentation of sugar solutions in the presence of certain molds. Oxalic acid is the only possible compound in which two carboxyl groups are joined directly; for this reason oxalic acid is one of the strongest acids in organic compounds. Unlike other carboxylic acids, oxalic acid (and formic acid) is readily oxidized and combine with calcium, iron, sodium, magnesium, or potassium to form less soluble salts called oxalates. Oxalic acid and oxalates are useful as reducing agents for photography, bleaching, and rust removal. They are widely used as an purifying agent in pharmaceutical industry, precipitating agent in rare-earth metal processing, bleaching agent in textile and wood industry, rust-remover for metal treatment, grinding agent, waste water treatment. acid rinse in laundries and removing scale from automobile radiators.
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