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295442

Sigma-Aldrich

Hydrogen sulfide

≥99.5%

Empirical Formula (Hill Notation):
H2S
CAS Number:
Molecular Weight:
34.08
Beilstein:
3535004
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor density

1.19 (15 °C, vs air)

Quality Level

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

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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

227 g in steel cylinder

Other Notes

For 295442-300G-EU packaging: 500 mL of aluminium cylinder equipped with stainless steel valve.

Recommended products

  • For 295442-227G: Z148504 or Z148512 CGA 180 Regulators, OR Z146951/Z187224 valves with Z147095 CGA 110 to CGA 180 adapter and Z146986 washer OR Z151661 T Purge Valve.
  • For 295442-300G-EU: outlet fitting: DIN 477-1 no.1, Z742162 or Z742164 are the recommended regulators.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 1 Inhalation - Aquatic Acute 1 - Flam. Gas 1 - Press. Gas Liquefied gas

Storage Class Code

2A - Gases

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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