SILVER(I) SULFIDE
Synonym(s):Silver sulfide
- CAS NO.：21548-73-2
- Empirical Formula: Ag2S
- Molecular Weight: 247.8
- MDL number: MFCD00003406
- EINECS: 244-438-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:22:42
What is SILVER(I) SULFIDE?
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.
The Uses of SILVER(I) SULFIDE
Inlaying in niello metalwork, ceramics.
The Uses of SILVER(I) SULFIDE
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.
The Uses of SILVER(I) SULFIDE
Silver sulfide is useful as a photosensitizer in photography, Intermediates, chemical research.
General Description
Properties of SILVER(I) SULFIDE
| 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 |
| Specific Gravity | 7.317 |
| color | Light yellow |
| Water Solubility | Soluble in HNO{3}, alkali cyanide solutions. Insoluble in water |
| Sensitive | Light Sensitive |
| Merck | 14,8530 |
| Solubility Product Constant (Ksp) | pKsp: 49.20 |
| 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 information for SILVER(I) SULFIDE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for SILVER(I) SULFIDE
SILVER(I) SULFIDE manufacturer
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