Ferrous chloride

  • Ferro 66
  • Ferrous dichloride
  • Iron(2+) chloride
  • Iron chloride (Fecl2)
  • Iron dichloride
  • Iron(II) chloride
Formula
FeCl2
Structure
Description
Ferrous chloride is a greenish white crystalline solid.
Uses
In metallurgy, reducing agent, in pharmaceutical prepns, mordant in dyeing.

Registry Numbers and Inventories.
CAS
7758-94-3
EC (EINECS/ELINCS)
231-843-4
RTECS
NO5400000
RTECS class
Mutagen
UN (DOT)
1759
Merck
12,4091
Beilstein/Gmelin
9297 (G)
Swiss Giftliste 1
G-7502
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Cl2Fe
Formula mass
126.75
Melting point, °C
674
Vapor pressure, mmHg
78.5 (821 C)
Density
3.162 g/cm3 (25 C)
Solubility in water
Freely soluble
Heat of fusion
32.7 kJ/mol

Hazards and Protection.
Storage
Keep containers tightly closed in a well ventilated area away from food products. Keep away from heat, light, and water. Material will absorb moisture from the air.
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
Dust mask; goggles or face shield; rubber gloves.
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: Adjust pH to neutral (pH=7). Allow to aerate. 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
Forms ferric chloride (fecl3) and ferric oxide (fe2o3) on heating in air.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
Fire potential
Nonflammable.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Irritating hydrogen chloride fumes may form in fire.

Health.
Exposure limit(s)
OSHA: Vacated 1989 OSHA PEL TWA 1 mg/m3 is still enforced in some states.
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 Inhalation.

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. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing, wash exposed area with copious amounts of water. A physician should examine the area if irritation or pain persists.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
1759
Response guide
Hazard class
8
Packing Group
I; II; III
 
USCG CHRIS Code
FEC
 
Std. Transport #
4932329 4932327 4935255 4936544 4936552