Ferrous oxalate dihydrate Chemical Properties

Melting point:

190°C (dec.)

Density 

2.28 g/mL at 25 °C(lit.)

solubility 

soluble in acid solutions

form 

Powder

Specific Gravity

2.28

color 

yellow

Water Solubility 

Soluble in water. Insoluble in acetic acid.

Sensitive 

Hygroscopic

Solubility Product Constant (Ksp)

pKsp: 6.5

BRN 

3757620

Exposure limits

ACGIH: TWA 1 mg/m3
NIOSH: TWA 1 mg/m3

Stability:

Stable. Hygroscopic. Incompatible with strong oxidizing agents.

CAS DataBase Reference

6047-25-2(CAS DataBase Reference)

EPA Substance Registry System

Iron, diaqua[ethanedioato(2-)-.kappa.O1,.kappa.O2]-, (T-4)- (6047-25-2)

Safety Information

Hazard Codes 

Xn

Risk Statements 

21/22

Safety Statements 

24/25

RIDADR 

3288

WGK Germany 

1

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Ferrous oxalate dihydrate Usage And Synthesis

Description

Iron(II) oxalate, FeC204.2H20, is precipitated as yellow crystals from solutions containing iron(II) and oxalate ions ; in the presence of excess alkali metal oxalate, however, soluble oxalato complexes M2[Fe(C2O4)2] are formed which can be precipitated by the addition of alcohol. The oxalate is paramagnetic with μeff= 5·2 B.M. at room temperature.

Chemical Properties

yellow powder
Ferrous oxalate, or iron(II) oxalate, is a chemical compound consisting of one iron(II) ion (Fe2) and one oxalate ion (C2O4(2−)). It has the chemical formula FeC2O4. Iron(II) oxalate is more commonly encountered as the dihydrate, FeC2O4·2H2O, CAS # 6047-25-2. Its crystal structure consists of chains of oxalate-bridged iron atoms, capped by water molecules. When heated, it dehydrates and decomposes into carbon dioxide, carbon monoxide, iron oxides and pyrophoric black iron.

Ferrous oxalate dihydrate(6047-25-2)Related Product Information

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