Hydrogen sulfide
Hydrogen sulfide (H2S), CAS 7783-06-4, is a highly toxic, colourless gas with a characteristic rotten egg odour. Possessing a molecular weight of 34.08 g/mol, it is highly flammable and poses significant environmental and health risks. H2S is primarily utilised in chemical synthesis and as a specialty gas in various industrial and research applications.
Chemical Synthesis
Hydrogen sulfide serves as a reagent in the synthesis of various organosulfur compounds. It is also employed in the production of metal sulfides.
Specialty Gas
Utilised in specific analytical procedures and as a calibration gas. Its reactivity makes it valuable in controlled chemical processes.
Reagent
Used in inorganic and organic synthesis for the introduction of sulfur atoms into molecules. Applications include the precipitation of metal ions.
| Molecular weight | 34.08 |
|---|---|
| Empirical formula | H2S |
| Assay | ≥99.5% |
| Boiling point | −60 °C(lit.) |
| Vapour pressure | 252 psi (21 °C) |
| Vapour density | 1.19 (15 °C, vs air) |
| Autoignition temp | 500 °F |
| Melting point | −85 °C(lit.) |
Hazard statements
- H220Extremely flammable gas
- H280Contains gas under pressure; may explode if heated
- H330Fatal if inhaled
- H400Very toxic to aquatic life
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P273Avoid release to the environment
- P284Wear respiratory protection
- P310Immediately call a POISON CENTER or doctor
- P410Protect from sunlight
| Protective equipment | Eyeshields, Faceshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Transport (UN / ADR) | UN 1053 2.1(2.3) |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F+,T+,N |
| Risk statements (R) | 12-26-50 |
| Safety statements (S) | 9-16-36-38-45-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Hydrogen sulfide (H2S) primarily used for?
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Hydrogen sulfide is primarily used in chemical synthesis and as a specialty gas in various industrial and research applications. It also acts as a reagent for the precipitation of metal ions and the synthesis of organosulfur compounds.
What are the CAS number and chemical formula for Hydrogen sulfide?
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The CAS number for Hydrogen sulfide is 7783-06-4, and its chemical formula is H2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Hydrogen sulfide with an assay of ≥99.5%. We do not represent this product as USP, BP, or EP grade.
What are the main safety hazards associated with Hydrogen sulfide?
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Hydrogen sulfide is extremely flammable (H220) and an acute toxicity hazard (H330), posing a significant risk of death if inhaled. It is also stored under pressure (H280) and is very toxic to aquatic life (H400).
How is Hydrogen sulfide packed and shipped by TSS?
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Hydrogen sulfide is classified under UN 1053, Hazard Class 2.1 (flammable gas), Subsidiary Risk 2.3 (toxic gas). TSS handles its export and shipping in accordance with strict international regulations.
How can I request a sample or a quote for Hydrogen sulfide?
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To request a sample or a quote for Hydrogen sulfide, please contact our sales team directly through our website or by phone.
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