Hydrogen Sulfide

Chemical formula: h‹s

CAS login No.: 7783-06-4

Appearance: colorless, with rotten egg like odor

Molecular weight: 34.08

Purity: 99.9%

Package: 40L

Gas content: 20kg

Gas description

Hydrogen sulfide, with the molecular formula of H2S and the molecular weight of 34.076, is a flammable acid gas under standard conditions. It is colorless. It smells like rotten eggs at low concentrations and sulfur at very low concentrations. It is highly toxic (lc50=444ppm<500ppm). Its aqueous solution is hydrosulphuric acid. The molecular weight is 34.08, the vapor pressure is 2026.5kpa/25.5 ℃, the flash point is <-50 ℃, the melting point is -85.5 ℃, the boiling point is -60.4 ℃, and the relative density is (air =1) 1.19. Soluble in water, easily soluble in alcohols, petroleum solvents and crude oil. The ignition point is 292 ℃. Hydrogen sulfide is a flammable hazardous chemical, which can form explosive mixture when mixed with air. It can cause combustion and explosion in case of open fire and high heat. Hydrogen sulfide is an important chemical raw material.

Main purpose

1. It is used in the manufacture of synthetic phosphor, electric discharge, photoconductor, photoelectric exposure meter, etc.

2. Organic synthetic reducing agent.

3. Used for metal refining, pesticide, medicine and catalyst regeneration.

4. Various sulfides are prepared for the manufacture of inorganic sulfides, as well as for chemical analysis, such as the identification of metal ions.

5. Hydrogen sulfide can be used in industry to produce high-purity sulfide (reacting with sulfur dioxide); Hot springs containing hydrogen sulfide have certain curative effects on skin diseases. Hydrogen sulfide is an acidic gas, which can react with some metals such as silver. For example, when hydrogen sulfide contacts with silver, it will produce dark brown silver sulfide. Hydrogen sulfide is mainly used for chemical identification and analysis of metal ions as shown in this figure.