Ferric ammonium oxalate

  • Ammonium ferric oxalate
  • Ammonium trioxalatoferrate(III)
  • Ammonium ferrioxalate
  • Triamonium trioxalotoferrate
Formula
(NH4)3Fe(C2O4)3
Structure
Description
Green, granular crystals.
Uses
In photography, blueprints, coloring of aluminum & aluminum alloys.

Registry Numbers and Inventories.
CAS
14221-47-7
EC (EINECS/ELINCS)
238-090-0
RTECS
LJ8932000
RTECS class
Primary Irritant
UN (DOT)
9119
Merck
12,548
Beilstein/Gmelin
NA
Swiss Giftliste 1
G-8926
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6FeO12.3H4N
Formula mass
374.02
Density
1.78 g/cm3 (20 C)
Solubility in water
very soluble

Hazards and Protection.
Storage
Protect from light. Hydrate
Handling
Containers of this material may be hazardous when emptied. Since emptied containers retain product residues (vapor, liquid, and/or solid), all hazard precautions given in the data sheet must be observed.
Protection
Approved dust respirator; rubber or plastic-coated gloves; chemical goggles or face shield.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Water spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Adjust pH to neutral (pH=7). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability
Stable.
Incompatibilities
Reacts as acid to neutralize bases.
Decomposition
Ammonia, carbon dioxide and carbon monoxide, nitrogen oxides.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
Fire potential
May burn but does not ignite readily.
Hazards
Containers may explode when heated.
Combustion products
Toxic oxides of nitrogen, ammonia, and carbon monoxide may form in fires.

Health.
Poison_Class
3
Exposure effects
Blood pressure may be decreased following an iron overdose. Lethargy, restlessness or confusion may be seen early in the poisoning. Convulsions and coma may occur in later phases. Case reports of pregnant women who have received early aggressive treatment (decontamination and/or deferoxamine) have described good fetal outcomes.
   Ingestion
Nausea, vomiting, diarrhea and gastrointestinal hemorrhage may develop.
   Inhalation
Noncardiogenic pulmonary edema may develop with severe intoxication.
   Skin
Severe thermal burn with ferrous sulfate slurry has caused classical symptoms of ingested iron poisoning.
   Eyes
See Skin.

First aid
 
   Ingestion
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
9119
Response guide
Hazard class
9
USCG CHRIS Code
FAO
 
Std. Transport #
4962639