Skip to Content
Merck

295442

Hydrogen sulfide

≥99.5%

Synonym(s):

Dihydrogen monosulfide, Hydrosulfuric acid

Sign In to View Organizational & Contract Pricing.

Select a Size

All Photos(1)

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

Product Name

Hydrogen sulfide, ≥99.5%

InChI key

RWSOTUBLDIXVET-UHFFFAOYSA-N

InChI

1S/H2S/h1H2

SMILES string

S

vapor density

1.19 (15 °C, vs air)

vapor pressure

252 psi ( 21 °C)

assay

≥99.5%

autoignition temp.

500 °F

expl. lim.

6 %

bp

−60 °C (lit.)

mp

−85 °C (lit.)

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

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.

General description

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

Other Notes

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

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

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
MKCZ4521
MKCX0638
MKCV7341
MKCV1310
MKCT4227

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

Printed hydrogen sulfide gas sensor on paper substrate based on polyaniline composite.
Sarfraz J
Thin Solid Films, 534, 621-628 (2013)
Silver sulfide nanoparticle assembly obtained by reacting an assembled silver nanoparticle template with hydrogen sulfide gas.
Chen R
Nanotechnology, 19(45), 455604-455604 (2008)
Hydrogen sulfide
Pouliquen F, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Fabrication of polyaniline-based gas sensors using piezoelectric inkjet and screen printing for the detection of hydrogen sulfide.
Crowley K
IEEE Sensors Journal, 10(9), 1419-1426 (2010)
Amine Ruthenium complexes of hydrogen sulfide and related sulfur ligands.
Kuehn CC
Journal of the American Chemical Society, 98(3), 689-702 (1976)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service