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Beijing KangPuHuiWei Technology Co.,Ltd.

Oxalic acid

Author：admin Time：2019-01-04 09:45:18

Product Information

Oxalic acid C2H2O4·2H2O

Alias: acetic acid

Relative molecular Weight:126.07

Properties:Colorless or white crystallinegranules,Easy to weathering,In hot air, dryer or heating above 30 ℃ will losecrystal water.The relative density (d420) 1.650, the melting point of 101.5 ℃, 157 ℃sublimation.Strong heat decomposition of carbon dioxide and formic acid.Solublein water, ethanol, insoluble in benzene, chloroform.

Referencestandard:GB 9854-88

Specifications: Content and content of impurities in %

Test Items	AR	CP
Content	99.5	99.5
Clarity standards	Qualified	Qualified
Water insoluble matter	0.005	0.01
Residueon ignition (sulphate)	0.02	0.05
Chloride	0.002	0.005
Sulfate（SO4）	0.002	0.005
Total nitrogen content（N）	0.002	0.005
Calcium（Ca）	0.003	0.005
Iron（Fe）	0.0005	0.002
Heavy metals（以Pb计）	0.0004	0.001
Reductive substance	Qualified	Qualified

Usage:Used as analytical reagent,Such ascalcium, thorium and rare earth precipitating agent,use as the maskingagent,reducing agent.Standard for Calibration of Potassium PermanganateStandard Solution.Use as dye intermediates and organic purification.

Cleaning metal surface of high purity oxalicacid

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