Buffer Cleaner
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COOH.2H2O |
OXALIC ACID |
Molecular Formula | Mol Wt. 126 |
APPEARANCE |
Fine colourless & Odourless prismatic crystals. (It has appearance of powder form.) |
CHEMICAL COMPOSITION | |
OXALIC ACID CONTENT % BY MASS | MIN 99.00% |
SULPHETED ASH % BY MASS | MAX 0.15% |
CHLORIDE (as CI) % BY MASS | MAX. 0.005% |
SULPHETES (as SO4) % BY MASS | MAX 0.10% |
IRON (as Fe) % BY MASS | MAX 0.05% |
HEAVY DUTY METALS (as Pb) |
MAX 0.005% |
SOLUBILITY | Soluble in water, water solution is clear & colourless. |
In humans, oxalic acid has an oral (lowest published lethal dose) of 600 mg/kg (human).
The main toxicity of oxalic acid is due to the precipitation of calcium oxalate in the kidneys when urine becomes supersaturated with respect to this salt. Oxalic acid is also a metabolism product of the degradation of ethylene glycol if accidentally ingested and, as such, directly represents a danger for the kidneys in case of glycol poisoning.
First Aid
IF SWALLOWED -Give 1 or 2 glasses of water and call for medical assistance immediately.
EYE CONTACT - Wash with plenty of water for at least 15 minutes; Get medical attention promptly.
CH4N2O | |
Molar mass | 60.056 g·mol−1 |
Appearance | White solid |
Density | 1.32 g/cm3 |
Melting point | 133 to 135 °C (271 to 275 °F; 406 to 408 K) |
1079 g/L (20 °C) 1670 g/L (40 °C) 2510 g/L (60 °C) 4000 g/L (80 °C) |
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Solubility |
500 g/L glycerol
50g/L ethanol |
Basicity (pKb) | 13.9[4] |
-33.4·10−6 cm3/mol |