Skip to Content

Key Documents

View All Documentation

295442

Hydrogen sulfide

≥99.5%

Synonym(s):

Dihydrogen monosulfide, Hydrosulfuric acid

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
H2S
CAS Number:
7783-06-4
Molecular Weight:
34.08
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
24857784
EC Number:
231-977-3
Beilstein/REAXYS Number:
3535004
MDL number:
MFCD00011444
Assay:
≥99.5%
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

vapor density

1.19 (15 °C, vs air)

Quality Segment

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

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

signalword

Danger

Hazard Classifications

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

Storage Class

2A - Gases

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library