Description

Hydrogen Sulfide CAS NO 81032-32-8 is a highly toxic, flammable, and corrosive gas with a characteristic odor of rotten eggs. It is a critical industrial chemical and analytical reagent used in various synthesis and purification processes. This product is essential for laboratories and industries involved in chemical manufacturing, metallurgy, and environmental testing, where precise and reliable sulfur sources or reducing agents are required.

Application

• Chemical Synthesis: Acts as a key reagent and sulfur source in the production of inorganic sulfides, thio compounds, and organosulfur chemicals.
• Metallurgical Processing: Used in analytical chemistry for qualitative inorganic analysis, particularly in the separation and identification of metal ions based on sulfide precipitation.
• Laboratory Research: Employed as a powerful reducing agent in various research-scale chemical reactions and process development.
• Calibration & Safety: Serves as a calibration gas for environmental monitoring equipment designed to detect toxic H2S levels in air, crucial for workplace safety in oil & gas and wastewater treatment.
• Material Production: Used in the production of heavy water (deuterium oxide) via the Girdler sulfide process and in certain semiconductor manufacturing steps.

Basic Information

Product Name	Hydrogen Sulfide
CAS No.	81032-32-8
Molecular Formula	H2S
Molecular Weight	34.08 g/mol
Synonyms	Hydrogen sulphide; Sulfuretted hydrogen; Dihydrogen monosulfide; Dihydrogen sulfide; Sewer gas; Stink damp; Sulfane; Sulfhydric acid; Hepatic gas; Hydrosulfuric acid; Acid, Hydrosulfuric
EINECS	Contact for details

Quality Control

Our Hydrogen Sulfide is produced and handled under stringent quality protocols to ensure consistency and reliability for industrial and laboratory use. While specific purity grades (e.g., 99.5%+, 99.9%+) are available, all materials are analyzed to confirm identity and concentration. A Certificate of Analysis (COA) detailing assay and impurity profiles is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a dedicated, well-ventilated gas cabinet or area, away from oxidizers, strong acids, and sources of ignition. Cylinders must be secured upright and kept at ambient temperature in a cool, dry place. Due to its highly volatile and gaseous nature, systems must be checked for leaks. Always refer to the Safety Data Sheet (SDS) for complete handling and storage instructions.

Specification

Item	Specification
Appearance	Colorless Gas
Odor	Characteristic of Rotten Eggs
Assay (by GC)	≥ 99.5%
Water Content	≤ 50 ppm
Identification (IR)	Conforms

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.