Hydrogen Sulfide Chemical Formula and the Molar mass of H2S
What is hydrogen sulfide? H2S is a naturally occurring chemical compound that is created in nature with the decay of organic material. Hydrogen sulfide formula is a chemical compound with a molecular formula comprised of (2) hydrogen atoms and (1) one sulfur atom. The formula is displayed as H2S. The gas is a colorless hydride gas and it is often known as the “Rotten egg gas”. This gas is very dangerous as it is poisonous and toxic to all forms of life. It is also very corrosive and flammable. The H2S molar mass is 34.1 g/mol and it has a melting point of -76 F (-60 C) and a melting point of –115.6F or (-82C).
Hydrogen sulfide gas is also created more often from a byproduct of a manufacturing process or the removal of water or wastewater treatment systems. In wastewater, as organic material decays H2S is released, captured, and treated to protect human lives, reduce corrosion, and reduce odor complaints. During the manufacturing operations at refineries, pulp mills, and mining hydrogen sulfide gas is produced. These higher levels of H2S are released during the manufacturing process and must be captured and neutralized to protect human life and prevent excessive corrosion. At higher concentrations, you cannot even smell the gas and it is not distinguishable as the “rotten egg gas” which makes it even more dangerous and drives the need for the equipment known as hydrogen sulfide scrubbers, and fume scrubbers, or odor control scrubbers.
According to the “Agency for Toxic Substance & Disease Registry” those who work within certain industries, are exposed daily to higher levels of hydrogen sulfide gas than the normal public. Because the gas is also heavier than air it will settle into lower places like manholes, tanks, and basements and it will travel across the ground filling in low-level areas. To protect the public OSHA has set guidelines and rules known as “Permissible Exposure Limits” (PEL). A PEL is a legal limit a worker may be exposed to a chemical substance. The PEL limit for hydrogen sulfide is ten parts per million (10 ppm) over eight hours.