BISMUTH SULFIDE Property

Melting point:

685°C (dec.)

Density 

7.7 g/mL at 25 °C(lit.)

solubility 

insoluble in H2O; soluble in acid solutions

form 

Lump

Specific Gravity

7.7

color 

Gray

Water Solubility 

Insoluble in water. Soluble in acids.

Crystal Structure

Sb2S3 type

crystal system

Nogata

Merck 

13,1288

Solubility Product Constant (Ksp)

pKsp: 97

Space group

Pbnm

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
1.1137	1.1297	0.3981	90	90	90	0.5009

CAS DataBase Reference

1345-07-9(CAS DataBase Reference)

EPA Substance Registry System

Bismuth sulfide (Bi2S3) (1345-07-9)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26

WGK Germany 

2

RTECS 

EB3105000

TSCA 

Yes

Toxicity

mouse,LD50,oral,10gm/kg (10000mg/kg),Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 30(6), Pg. 16, 1986.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

BISMUTH SULFIDE Chemical Properties,Usage,Production

Chemical Properties

Blackish brown powder

Physical properties

Brownish black orthogonal crystal; density 6.78 g/cm³; hardness 2 Mohs; melts at 850°C; insoluble in water; soluble in acids.

Occurrence

Bismuth sulfide occurs in nature as the mineral bismuthinite (bismuth glance). It is used as a starting material to produce many other bismuth compounds.

Uses

Bismuth(III) sulfide is used as a starting material to produce other bismuth compounds. It is used in glass industry as a colorant, electronic ceramics, scintillator BGO and in superconductors.

Preparation

The compound occurs in nature as mineral bismuthinite. It can be prepared in the laboratory by passing hydrogen sulfide into a solution of bismuth chloride or any soluble bismuth salt:
2BiCl₃ + 3H₂S → Bi₂S₃ + 6HCl
Alternatively, bismuth sulfide may be obtained by melting a mixture of bismuth and sulfur.
2Bi + 3S → Bi₂S₃

General Description

Bismuth(III) sulphide can be precipitated by hydrogen sulphide from bismuth solutions. 1

Flammability and Explosibility

Non flammable