• Oxalic Acid, 500g
  • Oxalic Acid, 500g
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Chemical Grade: Lab, Crystal
Formula: H2C2O4•2H2O
CAS: 6153-56-6
U.S. DOT: UN3261, Class 8, PG III
Get the SDS: Download
Return Policy: See Below.
No Fly Shipping! Only via Standard Ground
- USA & Canada.
Discount: Buy at least 12, save 15%
Cat No. - NC-0676
Price: $13.95


Oxalic Acid is used in a re-refining process in gold recovery. It is a very selective reducing agent towards gold because it's salts exclusively reduces gold chloride solutions, producing very high purity (9999 and higher) gold.

Another popular use is bleaching and renewing wood to a beautiful natural state.
Mix three parts oxalic acid with one part warm water to create a paste. Use the paste on wood stained by water marks. The paste is used as a spot treatment and should not be used to cover an entire surface.

Other uses include general metal and equipment cleaner, leather tanning, and bleaching textiles. Rust remover in mineral crystal preparation.

Oxalic acid appears as transparent, colorless crystals. It occurs naturally in many plants (wood sorrell, rhubarb, spinach). Once processed, it is corrosive and may be fatal if swallowed. When handling oxalic acid you should avoid contact with your eyes, skin, or clothing.

Oxalic Acid only ships to destinations within the 48 contiguous US states and Canada using Standard Ground. No air deliveries allowed.

Oxalic Acid is also used in the following patina formulas:




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