China (Mainland) 
synonym: ethanedioic acid
molecular formula: (cooh)2·2h20
molecular weight: 126
cas no: 144-62-7
property: white transparent crystal combining two crystal water,melting point: 101°c-102°c, specific gravity:1.653, easily sublimate at 100°c,easily dissolve in alcohol and water.
specification:
|
oxalic acid content
|
99.6% min
|
|
sulphate(so42- )
|
0.08% max
|
|
heavy metals(pb 2+ )
|
0.001% max
|
|
ferrous(fe 3+ )
|
0.0015% max
|
|
chloride(cl-)
|
0.003% max
|
|
ignition residue(850℃)
|
0.08% max
|
packing:
1.in plastic woven bag 25kg net, lined with pe bag.
2.in compound kraft bag 25kg net, lined with pe bag.
3.in jumbo bag.
the above mentioned all can be palletized & stretch wrapped.
usage:
1. in metallurgy industry: as precipitating and separating function for rare-earth metal.
2. in pharmaceutical industry: used in tetracycline, oxytetracycline, phenobarbital, and borneol, etc.
3. in light industry: polishing for marble, rust-remover, bleaching, dirt-remover, leather-processing, wood, and aluminium products etc.
4. in dyeing and printing industry: as reducing agent for dyeing and printing industry, as bleaching agent for textile, substitute for acetic acid, as coloring
mordant for fast pigment dyestuff.
5. in organic synthetic: used in 2133 resin, urea-formaldehyde molding powder, butadiene catalyst, etc.
6. in electron industry: preparation of chemicals raw material for porcelain capacitor, preparation of electron equipment detergent.
7. in other aspects: as analysis reagent, raw material of chemicals.