Oxalic acid forms fine colourless crystals, readily soluble in water, with light nitrogen oxides-like odour.
Oxalic acid forms fine colourless crystals, readily soluble in water, with light nitrogen oxides-like odour.Oxalic acid dihydrate begins to dissociate at temperature over 30°C.If heated quickly, it melts at 101.5°C,anhydrous oxalic metals at 180°C.
Oxalic acid used for 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.
25kg /50kgPP bag of top grade linerfilm,good properties of waterproof and avoid water,solarization.
Parameter | Grade | ||
| Oxalic acid | 1 | 2 | 3 |
Purity (H2C2O4·H2O) | 99.6% | 99.4% | 99.0% |
SO4-2 % ≤ | 0.08 | 0.10 | 0.20 |
Ignition residue(850oC) % ≤ | 0.08 | 0.10 | 0.20 |
Heavy metal (Pb+2) % ≤ | 0.001 | 0.002 | 0.02 |
Chloride (Cl-) % ≤ | 0.003 | 0.004 | 0.01 |
Calcium (Ca+2) % ≤ | 0.0012 | ||
Fe+3 % ≤ | 0.0012 | 0.002 | 0.01 |
Oxalic acid (99.6%, 99.4%,99%)
