Oxalic acid, diammonium salt
Ethanedioic acid, diammonium salt
C2H8N2O4 / NH4OOCCOONH4
Molecular mass: 124.1
ICSC # 1036
CAS # 1113-38-8
RTECS # RO2750000
UN # 2811
EC # 607-007-00-3
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/ Fire Fighting
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FIRE
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Combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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Inhalation
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Cough.
Sore throat
(see Ingestion).
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Local exhaust or breathing protection.
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Fresh air, rest.
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Skin
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Redness.
Burning sensation.
Pain.
Blisters.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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Eyes
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Redness.
Pain.
Severe deep burns.
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Safety goggles,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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Ingestion
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Abdominal pain.
Convulsions.
Drowsiness.
Dullness.
Shock or collapse.
Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
Rest.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place
(extra personal protection: P2 filter respirator for harmful particles).
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Separated from
food and feedstuffs, oxidants.
Dry.
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Do not transport with food and feedstuffs.
Note: A
Xn symbol
R: 21/22
S: 2-24/25
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
ODOURLESS,
COLOURLESS, CRYSTALLINE POWDER.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating or
on burning
producing toxic and corrosive fumes including ammonia and nitrogen oxides.
Reacts with oxidants.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.
Effects of Short-Term Exposure:
The substance
irritates the eyes, the skin and the respiratory tract.
The substance may cause effects on the central nervous system and kidneys
, resulting in impaired functions.
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the kidneys.
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Physical Properties
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Decomposes below melting point at see Notes
Relative density (water = 1): 1.50
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Solubility in water: moderate
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Environmental Data
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N O T E S
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The physical properties are those of the monohydrate.
Temperature of decomposition unknown in literature.
Transport Emergency Card: TEC (R)-61G12c
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ADDITIONAL INFORMATION
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ICSC: 1036
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AMMONIUM OXALATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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