Diethyl oxalate
Chemically colorless liquid with a fragrant aroma.
Mixed with ethanol, ether, acetone, etc.
Slightly soluble in water.
USES are used as solvents and extracts for fibre-ester and ether and also for organic synthesis
Diethyl oxalate is the intermediate body of cyanthrin, and is also a medical intermediates.
Use 2 ethyl acetate is mainly used in pharmaceutical industry, phenobarbital, azathioprine, sulphadoxine-pyrimethamine, sulfanilamide methyl oxazole, carboxy benzene ester penicillin, ampicillin, lactic acid, ethyl pp oxygen chloroquine, thiabendazole drugs such as intermediate.
It is also a plastic accelerator and dye intermediates.
It is also used as a solvent for cellulose ester and spices.
It is used as the intermediates and plastic promoters of phenobarbital, thiazolamine, and solid-effect sulfonamide
USES as solvent, intermediate of dye, and composition of paint and medicine
The production method has no water oxalic acid and ethanol in solvent toluene and the esterification produces the diethyl oxalate.
The crude ester is refined into the finished product.
Raw material consumption quota: 985kg/t, ethanol (95%) 744kg/t, toluene 73.4 kg/t.
Production method of the preparation method is to add ethanol, benzene, oxalic acid reaction kettle heated to 68 ℃, the backflow of azeotropic dehydration, and no water for the reaction end point, and then recycle benzene, coarse diethyl oxalate, vacuum distillation, collecting 103 ℃ / 6 kpa fractions, diethyl oxalate.
Category toxic
Toxicity grade poisoning
Acute toxicity oral - mouse LD50:2000 mg/kg
Stimulating data skin - guinea pig 500 mg / 24 hours light
Flammable dangerous properties are hot and open fire;
When it burns, it emits a stimulus
Storage and transportation characteristics.
Store with oxidizer and food additives
Extinguishing agent foam, carbon dioxide, dry powder, sandy soil
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Mixed with ethanol, ether, acetone, etc.
Slightly soluble in water.
USES are used as solvents and extracts for fibre-ester and ether and also for organic synthesis
Diethyl oxalate is the intermediate body of cyanthrin, and is also a medical intermediates.
Use 2 ethyl acetate is mainly used in pharmaceutical industry, phenobarbital, azathioprine, sulphadoxine-pyrimethamine, sulfanilamide methyl oxazole, carboxy benzene ester penicillin, ampicillin, lactic acid, ethyl pp oxygen chloroquine, thiabendazole drugs such as intermediate.
It is also a plastic accelerator and dye intermediates.
It is also used as a solvent for cellulose ester and spices.
It is used as the intermediates and plastic promoters of phenobarbital, thiazolamine, and solid-effect sulfonamide
USES as solvent, intermediate of dye, and composition of paint and medicine
The production method has no water oxalic acid and ethanol in solvent toluene and the esterification produces the diethyl oxalate.
The crude ester is refined into the finished product.
Raw material consumption quota: 985kg/t, ethanol (95%) 744kg/t, toluene 73.4 kg/t.
Production method of the preparation method is to add ethanol, benzene, oxalic acid reaction kettle heated to 68 ℃, the backflow of azeotropic dehydration, and no water for the reaction end point, and then recycle benzene, coarse diethyl oxalate, vacuum distillation, collecting 103 ℃ / 6 kpa fractions, diethyl oxalate.
Category toxic
Toxicity grade poisoning
Acute toxicity oral - mouse LD50:2000 mg/kg
Stimulating data skin - guinea pig 500 mg / 24 hours light
Flammable dangerous properties are hot and open fire;
When it burns, it emits a stimulus
Storage and transportation characteristics.
Store with oxidizer and food additives
Extinguishing agent foam, carbon dioxide, dry powder, sandy soil