Ammonium oxalate

  • Ethanedioic acid diammonium salt
  • Diammonium oxalate
Formula
NH4OOCCOONH4
Structure
Description
Odorless solid.
Uses
Manufacture explosives, electrolytic detinning of iron, in dyeing, metal polishes, for detection & determination of calcium, lead, & rare earth metals, analytical chemistry, manufacture of oxalates, rust & scale removal monohydrate.

Registry Numbers and Inventories.
CAS
1113-38-8
EC (EINECS/ELINCS)
214-202-3
RTECS
RO2750000
RTECS class
Other
UN (DOT)
2449
Merck
12,571
Beilstein/Gmelin
3711694
Beilstein Reference
4-02-00-01819
EPA OPP
9603
Swiss Giftliste 1
G-1113
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C2H2O4*2H3N
Formula mass
124.1
Melting point, °C
70
Density
1.50 g/cm3 (20 C)
Solubility in water
118 g/L

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Approved dust respirator; rubber or plastic-coated gloves; chemical goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
Reacts as a base to neutralize acids Reacts within a few seconds with solutions of sodium hypochlorite.

Fire.
Fire fighting
Fire Extinguishing Agents: Water, foam
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Toxic oxides of nitrogen may form in fire.
Health
4
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
2
Exposure effects
Increased deep tendon reflexes, drowsiness, stupor, seizures and coma may be noted.
   Ingestion
Persistent vomiting, hematemesis and hemorrhagic gastritis due to the corrosive action of oxalic acid on the mucous membranes may occur immediately following ingestion.
   Inhalation
Cough, sore throat. Irritates eyes, skin and respiratory tract. May cause effects on the central nervous system and kidneys, resulting in impaired functions. <BR>Chronic effects - May have effects on the kidneys.
   Skin
Dermal exposure may result in corrosive action on the skin. Skin lesions begin with epithelial cracking and the formation of slow-healing ulcers.
   Eyes
Redness, pain, severe deep burns.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Remove to fresh air.
   Skin
Flush with water.
   Eyes
Flush with water and seek medical attention.

Transport.
UN number
2449
Response guide
Hazard class
6.1
USCG CHRIS Code
AOX