oxalic acid - 587

Molecular formula(COOH)2.2H2O
Molecular weight:40
CAS NO.:144-62-7
Appearance: white crystals
Package: 25KG net in plastic woven bags lined with plastic bags
Specification:
index content
Purity%≧ 99.6 99.4 99.0
Sulphate group%≦ 0.08 0.10 0.20
Loss on ignition(850℃)%≦ 0.08 0.10 0.20
Heavy metal %≦ 0.001 0.002 0.02
Iron content %≦ 0.0012 0.002 0.01
Chlorides %≦ 0.003 0.004 0.01
Calcium %≦ 0.0012 / /

Properties: Oxalic acid forms fine colourless crystals ,readily soluble in water,with light nitrogen oxides-like odour.oxalic acid dehydrate begins to dissociate at temperature over 30℃,if heated quickly,it means at 101.5℃,anhydrous oxalic acid melts at 180℃.
Applications:purifying agent in pharmaceutical industry,special in antibiotic medication,such as oxytetracycline,chloramphenicol, ,etc
Precipitating agent in rare-earth mineral processing;
Bleaching agent in the textile activities ,wood pulp bleaching;
Rust-remover for metal treatment;
Grinding agent ,such as marble polishing;
Waste water treatment ,removing calcium from water.
Packing:25/50 kgs grey colour PP bag of top grade linefilm,good properties of waterproof and avoid water ,solarization;