Oxalic acid

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Oxalic acid
Chemical formula C2H2O4
OTP appearance white solid 
Molar Mass(g/mol) 90.03 
Melting Point(°C) 189-191 
Boiling Point(°C) decomp 
Density(g/cc) 1.9 
Solubility in water(g/L) 143 
Solubility in ethanol(g/L) 237
NFPA 704
NFPA704.png
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Uses

Justification Questioned

Other

Natural occurrence

  • Oxalic acid does occur naturally in plants

Hazards

  • Toxic

Production

Extraction

from sawdust

cf. Alkali wood extraction

Synthesis

from sugars

Sucrose, oxidized by nitric acid, produces oxalic acid.

2 C6H22O12 + 14 HNO3 14 NO2 + 3 H2C4O4 + 26 H2O

from cellulose=

Purification

Testing

Storage

Disposal

See Also

References