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Precious Metal Salts & Compounds

Silver sulphide, 98%

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Buy Silver sulphide, 98% (CAS 21548-73-2) from Zemixal. Request a quote with price, lead time and documents. Purity ≥98%.

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Silver sulphide, 98% chemical structure
CAS number21548-73-2
FormulaAg2S
Molar mass247.8 g/mol
Physical formPowder
HS code28432900
Purity≥98%
InChIKeyOCWNMDUAUUAHSJ-UHFFFAOYSA-N
IUPAC namesilver;sulfanylidenesilver

About Silver sulphide, 98%

Researchers and plant chemists source Silver sulphide, 98% from Zemixal for routine and specialised work. Key data (≥98%): CAS 21548-73-2, formula Ag2S and molar mass 247.8 g/mol. Expect powder.

Use cases we see most often

  • Materials research
  • Chemical synthesis

Safe handling

Physical constants on file: melting point 845 °C and density 7.234 g/mL at 25 °C. Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.

Order it in 5 g, 25 g, 100 g and 5 x 1 kg packs or ask for a bulk quotation. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Materials research
  • Chemical synthesis

Applications

Specifications and identifiers

Specifications of Silver sulphide, 98%
Product nameSilver sulphide, 98%
Catalogue numberZX-014513
CAS number21548-73-2
IUPAC namesilver;sulfanylidenesilver
Molecular formulaAg2S
Molar mass247.8 g/mol
Exact mass247.7819
Purity / assay≥98%
Physical formPowder
AppearancePowder
Melting point845 °C
Density7.234 g/mL at 25 °C
H-bond donors / acceptors0 / 1
Topological polar surface area32.1 Ų
HS code28432900
InChIKeyOCWNMDUAUUAHSJ-UHFFFAOYSA-N
SMILESS=[Ag].[Ag]
PubChem CID22981889
SynonymsDisilver sulfide, Silver sulfide (Ag2S)

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P305 + P351 + P338

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Silver sulphide, 98%
5 gQuoted on request
25 gQuoted on request
100 gQuoted on request
5 x 1 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Silver sulphide, 98%

Which CAS number identifies Silver sulphide, 98%?
Silver sulphide, 98% is registered under CAS 21548-73-2. You may also see it listed as Disilver sulfide, Silver sulfide (Ag2S). Our catalogue number for this item is ZX-014513.
What are the formula and molar mass of Silver sulphide, 98%?
For Silver sulphide, 98%, its formula is Ag2S and its molar mass is 247.8 g/mol. InChIKey OCWNMDUAUUAHSJ-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Silver sulphide, 98%?
This listing is ≥98% purity. Standard packs are 5 g, 25 g, 100 g, 5 x 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Silver sulphide, 98%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Silver sulphide, 98% to my country?
Yes. Because Silver sulphide, 98% is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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