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Ferrous sulfide

Basic information Uses Preparation Reactions Safety Related Supplier

Ferrous sulfide Basic information

Product Name:
Ferrous sulfide
CAS:
1317-37-9
MF:
FeS
MW:
87.91
EINECS:
215-268-6
Mol File:
1317-37-9.mol
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Ferrous sulfide Chemical Properties

Melting point:
1195 °C
Boiling point:
decomposes [HAW93]
Density 
4.84 g/mL at 25 °C(lit.)
storage temp. 
Storage temperature: no restrictions.
form 
Sticks
color 
Grayish-black
Specific Gravity
4.84
Odor
Odorless
Water Solubility 
Soluble in water(0.0062g/L ), in acids with evolution of hydrogen sulfide. Insoluble in nitric acid.
Sensitive 
Moisture Sensitive
Merck 
14,4058
Solubility Product Constant (Ksp)
pKsp: 17.2
Stability:
Stable. Incompatible with strong acids, strong bases, metal oxides. Avoid moisture.
CAS DataBase Reference
1317-37-9(CAS DataBase Reference)
EPA Substance Registry System
Ferrous sulfide (1317-37-9)
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Safety Information

Hazard Codes 
N
Risk Statements 
31-50
Safety Statements 
60-61-50
RIDADR 
UN 3077 9/PG 3
WGK Germany 
3
13
TSCA 
Yes
HazardClass 
4.1
PackingGroup 
III
HS Code 
28309011
Hazardous Substances Data
1317-37-9(Hazardous Substances Data)

MSDS

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Ferrous sulfide Usage And Synthesis

Uses

Iron(II) sulfide occurs in nature as the minerals magnetkies, troillite and pyrrhotine. The most important application of this compound is in Kipp’s apparatus as a source for laboratory preparation of hydrogen sulfide. It also is used in paints, pigments, and ceramics and lubricant coatings.

Preparation

Iron(II) sulfide may be synthesized from the elements but the product is contaminated with iron. The reaction is exothermic and the heat of reaction melts iron. Pure sulfide may be obtained by using a slight excess of sulfur: the excess then is distilled off.
The compound also may be precipitated by treating an aqueous solution of an alkali metal sulfide with that of iron(II) chloride or any iron(II) salt solution:
S2– (aq) + Fe2+ (aq) → FeS(s)
Another method of preparation involves passing a mixture of hydrogen sulfide and hydrogen over iron(III) oxide at about 1,000°C:
Fe2O3 + 2H2S + H2 → 2FeS + 3H2O

Reactions

Iron(II) sulfide reacts with acids evolving hydrogen sulfide:
FeS + 2HCl → H2S + FeCl2
The compound is readily oxidized under moist condition by action of air, forming triiron tetroxide and elemental sulfur:
3FeS + 2O2 → Fe3O4 + 3S
The above reaction is exothermic.
Iron(II) sulfide decomposes to its elements when heated above 1,100°C:
FeS → Fe + S
When heated with boiled water, it generates sulfuric acid and hydrogen:
4FeS + 8H2O + 7O2 → 4H2SO4 + 4H2 + Fe2O3

Chemical Properties

grey to brown-black lumps or powder

Uses

Ferrous sulfide can be used as a laboratory source of H2S; in the ceramic industry; as a paint pigment; in anodes; in lubricant coatings.

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Ferrous sulfideSupplierMore

J & K SCIENTIFIC LTD.
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010-82848833- ;010-82848833-
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Meryer (Shanghai) Chemical Technology Co., Ltd.
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Alfa Aesar
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400-610-6006; 021-67582000
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Beijing dtftchem Technology Co., Ltd.
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010-60275820-
Email:
dtftchem@sina.com;
BeiJing Hwrk Chemicals Limted
Tel:
21-51691807-
Email:
peter.shi@hwrkchemical.com;
Basic information Uses Preparation Reactions Safety Related Supplier