295442

Hydrogen sulfide

≥99.5%

• Synonym(s): Dihydrogen monosulfide, Hydrosulfuric acid
• Empirical Formula (Hill Notation): H₂S
• CAS Number: 7783-06-4
• Molecular Weight: 34.08
• Beilstein/REAXYS Number: 3535004
• EC Number: 231-977-3
• MDL number: MFCD00011444
• UNSPSC Code: 12142100
• PubChem Substance ID: 24857784
• NACRES: NA.22

Properties

• vapor density: 1.19 (15 °C, vs air)
• Quality Level: 200
• vapor pressure: 252 psi ( 21 °C)
• assay: ≥99.5%
• autoignition temp.: 500 °F
• expl. lim.: 6 %
• bp: −60 °C (lit.)
• mp: −85 °C (lit.)
• SMILES string: S
• InChI: 1S/H2S/h1H2
• InChI key: RWSOTUBLDIXVET-UHFFFAOYSA-N

Description

General description

Hydrogen sulfide serves as a precursor for elemental sulfur and in the production of organosulfur compounds.

Application

Hydrogen sulfide gas can be used in the following applications:

• As a sulfur source to synthesize assemblies of silver sulfide nanoparticles (Ag₂S NPs).
• As a ligand to form coordination complexes with ruthenium ammines.
• As a test compound to assess the performance of polyaniline-based gas H₂S sensors.

Packaging

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:

• Aldrich^® lecture-bottle station systems
• Aldrich^® lecture-bottle gas regulators

Other Notes

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Safety Information

• pictograms: GHS02,GHS04,GHS06,GHS09
• signalword: Danger
• hcodes: H220,H280,H330,H400
• pcodes: P210 - P260 - P273 - P304 + P340 + P310 - P403 + P233 - P410 + P403
• Hazard Classifications: Acute Tox. 1 Inhalation - Aquatic Acute 1 - Flam. Gas 1A - Press. Gas Liquefied gas
• Storage Class: 2A - Gases
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)