OXALIC ACID Chemical Properties

Melting point:

189.5 °C (dec.)(lit.)

Boiling point:

337.5℃[at 101 325 Pa]

Density 

0.99 g/mL at 25 °C

vapor density 

4.4 (vs air)

vapor pressure 

<0.01 mm Hg ( 20 °C)

pka

4.43[at 20 ℃]

Water Solubility 

100g/L at 25℃

Exposure limits

ACGIH: TWA 1 mg/m3; STEL 2 mg/m3

LogP

0.162 at 25℃

EPA Substance Registry System

Carboxylic acids, di-, C4-6 (68603-87-2)

Safety Information

Hazard Codes 

Xn

Risk Statements 

21/22

Safety Statements 

24/25

RIDADR 

UN 3261 8/PG 3

WGK Germany 

1

RTECS 

RO2450000

HazardClass 

8

PackingGroup 

III

MSDS

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• Language:English Provider:ACROS
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OXALIC ACID Usage And Synthesis

Application

Oxalic acid standard solutions are widely used for the quantitative detection of oxalic acid content in food and pharmaceuticals. For example, oxalic acid standard solutions can be used to determine the oxalic acid content in edible mushroom broth. They can also be used in hawthorn and cordyceps products to detect small molecule organic acids, and to determine the sulfuric acid content in sulfuric acid-oxalic acid mixed acid hard anodizing solutions.

Flammability and Explosibility

Not classified

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