Agent Name

Oxalic acid dihydrate

CAS Number

6153-56-6

Formula

C2-H2-O4.2H2-O

Major Category

Other Classes

Synonyms

Ethanedioic acid, dihydrate; [ChemIDplus] Ethanedioic acid dihydrate; [ICSC] UN3261

Category

Organic Acids

Description

Colorless solid; [ICSC] Colorless hygroscopic crystals; [Sigma-Aldrich MSDS]

Sources/Uses

Used in calico printing and dyeing, bleaching straw hats and leather, cleaning wood and metals, purifying methanol, decolorizing crude glycerol, stabilizing hydrocyanic acid, removing paint, and removing stains; Also used in ceramics and pigments, in veterinary hemostatic solutions, in blood specimen anticoagulants, and in other industries (paper, photography, engraving, and rubber manufacturing); [Merck Index] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

Causes burns; Ingestion may have effects on calcium balance; Repeated or prolonged exposure may cause kidney stones; [ICSC] Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Harmful by ingestion and skin absorption; May have teratogenic effects; Targets the kidney, nerves, blood, and eyes; [Sigma-Aldrich MSDS] See "Oxalic acid."

Exposure Assessment
TLV (ACGIH)

1 mg/m3

STEL (ACGIH)

2 mg/m3

PEL (OSHA)

1 mg/m3

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Corrosive solid, acidic, organic, n.o.s."

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: