Silver Sulfide Powder is a grey-black powder consisting of silver and sulphur with low solubility and some photosensitivity, which has applications in electronics and optics.
Properties
Chemical formula: Ag₂S, composed of two silver atoms and one sulfur atom, belongs to the ionic compound.
Chemical stability: relatively stable, not easy to decompose, but will change under extreme conditions such as high temperature or molten electrolysis. Dangerous reactions may occur in contact with strong oxidising agents or acids. For example, silver sulphide can react with hydrochloric acid to form silver chloride and hydrogen sulphide, and with nitric acid to form silver sulphate, nitric oxide and water.
Appearance: grey-black powder.
Density: 7.234 g/cm³(25℃)
Melting point: 845°C
Solubility: insoluble in water and ammonia, soluble in nitric acid, sulphuric acid and cyanide base solution.
Crystal structure: orthorhombic crystal system.
Photosensitivity: sensitive to light, may undergo some special physical or chemical changes in the presence of light.
Resistivity: 0.1-10 ohm – m.
Energy band gap (nanoparticles): 0.96 eV.
Applications
Traditional photographic applications: It was once one of the main components of the light-sensitive layer in traditional films. In the film era, silver sulfide was more sensitive to light and could react chemically under light to record image information, and was widely used in the manufacture of photographic materials such as film and photographic paper. However, with the development of digital photography technology, this application has been gradually reduced.
Electronics industry: It can be used as a manufacturing material for resistors and electrical conductors. The resistive properties of silver sulphide enable it to regulate current and voltage in specific electronic circuits.
Analytical reagent: Used as an analytical reagent, it can be used to determine sulphur, oxygen, bromine and iodine ions in soil.
Jewellery manufacturing: Silver Sulfide can be used in the manufacture of jewellery, such as in some vintage style or with special design of rings, necklaces and other jewellery, Silver Sulfide can be used as a unique material to present a special appearance and texture.
Craft area:
Black Gold Inlay: Silver Sulfide is used for black gold inlay process on metal products, which can form a unique black decorative effect and increase the artistic value of crafts.
Ceramics: Silver Sulfide can be applied to the production process of ceramics, adding special colour and texture effects to ceramic products.
Laboratory research: as a chemical substance, it can be used in various chemical experiments and researches in the laboratory to help researchers understand its chemical properties and reaction mechanisms.
Micro-area analysis samples: In geological research, samples prepared with silver sulphide powder as the main component can be used as micro-area sulphide samples for the analysis of sulphide main trace elements.
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
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