| CAS NO | 7783-06-4 |
| UN NO | 1053 |
| EINECS NO | 231-977-3 |
| Molecular weight | 34.08 |
| Appearance | Colorless, Rotten egg smell |
| Melting point | -85.5 ℃ |
| Boiling point | -60.4 ℃ |
| Density | 1.36 kg/m³ |
| DOT Class | 2.3 & 2.1 |
| Label | Toxic Gas, Flammable Gas |
Hydrogen sulfide is an inorganic compound that is a flammable acid gas at standard conditions and has a rotten egg smell in low concentrations.
Hydrogen sulfide is a colorless, highly toxic, flammable gas with a stench characteristic of rotten eggs. It is usually caused by bacterial breakdown of organic matter in the absence of oxygen, such as in swamps and sewers where anaerobic digestion can take place. It is also present in volcanic gases, "natural gas" and some well waters. Hydrogen sulfide has many names, some of which are ancient.
Crude oil contains small amounts of hydrogen sulfide, but natural gas can contain up to 90 percent hydrogen sulfide. About 10% of total global H2S emissions are caused by human activities.
A small amount of hydrogen sulfide is used as a dopant for indium phosphide and gallium arsenide semiconductors, and as a precursor for zinc sulfide semiconductor growth.
Hydrogen sulfide is used for metal separation, removal of metal impurities and preparation of metal sulfides.
Hydrogen Sulfide Calibration mix for the petrochemical industry and emission control applications.
It is also used as an analytical reagent in chemical analysis and as an odorant in city gas.
Production of thioorganic compounds
Analytical chemistry
Precursor to metal sulfides
98% H2S, Industrial Grade
| Specification | 98% |
| Hydrogen | ≤ 0.08% |
| Carbon Dioxide | ≤ 1.6% |
| Nitrogen | ≤ 0.08% |
| Propane | ≤ 0.02% |
| Oxygen | ≤ 0.02% |
| Moisture | ≤ 50 ppm |
99.5% H2S, Industrial Grade
| Specification | 99.5% |
| Hydrogen | ≤ 0.02% |
| Carbon Dioxide | ≤ 0.4% |
| Nitrogen | ≤ 0.01% |
| Propane | ≤ 0.01% |
| Oxygen | ≤ 0.02% |
| Moisture | ≤ 50 ppm |
99.9% H2S, Industrial Grade
| Specification | 99.9% |
| Hydrogen | ≤ 0.02% |
| Carbon Dioxide | ≤ 0.03% |
| Nitrogen | ≤ 0.03% |
| Propane | ≤ 0.01% |
| Oxygen | ≤ 0.01% |
| Moisture | ≤ 20 ppm |
*Other Grades and Purity Available on Asking
Package Information
| Cylinder Specifications | Contents | |
| Cylinder Capacity | Valve | Weight |
| 47L | CGA 330 | 30 kgs |
*Other Packages Available on Asking
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Advantanges
More than fifteen years on the market.
ISO certificate manufacturer & Stable raw material source.
On-line analysis system for gas quality control in every step, highly close to 100% pass rate.
Experienced DG International Shipping Team by sea & air.
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