SILVER(I) SULFIDE Property

Melting point:

845 °C (lit.)

Boiling point:

decomposes [HAW93]

Density 

7.234 g/mL at 25 °C (lit.)

solubility 

Soluble in aq. HCN, aq. citric acid with KNO3. Insoluble in acids, alkalies, aqueous ammoniums.

form 

Powder

color 

Light yellow

Specific Gravity

7.317

Water Solubility 

Soluble in HNO{3}, alkali cyanide solutions. Insoluble in water

Sensitive 

Light Sensitive

Merck 

14,8530

crystal system

Monoclinic

Solubility Product Constant (Ksp)

pKsp: 49.20

Space group

P21/n

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.423	0.691	0.787	90	99.58	90	0.2268

Stability:

Stable. Incompatible with acids, strong oxidizing agents.

CAS DataBase Reference

21548-73-2(CAS DataBase Reference)

EPA Substance Registry System

Silver sulfide (21548-73-2)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

F 

8

TSCA 

Yes

HazardClass 

9

HS Code 

28432900

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.

SILVER(I) SULFIDE Chemical Properties,Usage,Production

Physical Properties

Grayish-black orthogonal crystals or powder; density 7.23 g/cm3; Moh’s hardness 2.3; melts at 825°C; insoluble in water; soluble in nitric and sulfuric acids.

Occurrence and Uses

Silver sulfide occurs in nature as mineral argentite. It is used in ceramics.

Preparation

Mineral argentite is mined from mineral deposits, crushed, ground, and washed for use. In the laboratory, silver sulfide is obtained by passing hydrogen sulfide gas through a solution of silver nitrate. The precipitate is washed with hot water.

Chemical Properties

Grayish-black powder.Soluble in concentrated sulfuric and nitric acids; insoluble in water.

Physical properties

Physical Properties Grayish-black orthogonal crystals or powder; density 7.23 g/cm³; Moh’s hardness 2.3; melts at 825°C; insoluble in water; soluble in nitric and sulfuric acids.

Uses

Silver sulfide is useful as a photosensitizer in photography, Intermediates, chemical research.

Uses

Silver sulfide is a brownish back powder formed by the combination of an alkaline sulfide with silver. It is a very stable compound made when toning silver-based images in sulfides. It is soluble in sulfuric and nitric acids but insoluble in water and alcohol.

Uses

Inlaying in niello metalwork, ceramics.

General Description

SRM 8553_cert SRM 8553 _SDS