Quick Answer: At What Temperature Does Hydrogen Sulfide Become Explosive?

At what concentration does hydrogen sulfide become explosive?

4%Hydrogen sulfide can cause explosions when its concentration exceeds 4% in air..

Is hydrogen sulfide more flammable than natural gas?

(i)Pure fuels: hydrogen sulfide has a wide flammability region compared with methane and propane, as shown in the literature. In this study, H2S-air mixtures produced lower explosion pressures at lean-to-stoichiometric compositions relative to natural gas.

How long does it take to die from hydrogen sulfide?

The maximum exposure limit for a low concentration of hydrogen sulfide is eight hours without respiratory equipment. An exposure to a high concentration of hydrogen sulfide could cause coma and death within minutes.

Can you smell hydrogen sulfide?

People can smell the “rotten egg” odor of hydrogen sulfide at low concentrations in air. However, with continuous low-level expo- sure, or at high concentrations, a person loses his/her ability to smell the gas even though it is still present (olfactory fatigue).

What chemical smells like rotten eggs?

Hydrogen sulfideHydrogen sulfide is a colorless, flammable gas that smells like rotten eggs at low concentration levels in the air. It is commonly known as sewer gas, stink damp, and manure gas.

How do you clean up hydrogen sulfide?

Hydrogen sulfide may be reduced or removed by shock chlorination, water heater modification, activated carbon filtration, oxidizing filtration or oxidizing chemical injection. Often treatment for hydrogen sulfide is the same as for iron and manganese, allowing the removal of all three contaminants in one process.

Why does hydrogen sulfide smell like rotten eggs?

Hydrogen sulfide gas (H2S) can give water a “rotten egg” taste or odor. This gas can occur in wells anywhere and be: Naturally occurring – a result of decay and chemical reactions with soil and rocks. Produced by certain “sulfur bacteria” in the groundwater, well, or plumbing system.

How fast does sulfuric acid gas kill?

800 ppm is the lethal concentration for 50% of humans for 5 minutes’ exposure (LC50). Concentrations over 1000 ppm cause immediate collapse with loss of breathing, even after inhalation of a single breath.

What produces hydrogen sulfide gas?

Hydrogen sulfide is a colorless gas with a rotten-egg odor. … Most hydrogen sulfide in the air comes from natural sources. It is produced when bacteria break down plant and animal material, often in stagnant waters with low oxygen content such as bogs and swamps.

How long does hydrogen sulfide stay in your system?

Hydrogen sulfide air concentrations from natural sources range between 0.00011 and 0.00033 ppm. In urban areas, the air concentrations are generally less than 0.001 ppm. Hydrogen sulfide remains in the atmosphere for approximately 1–42 days, depending on the season.

Can hydrogen sulfide explode?

H2S is a very toxic gas. … This can pose risks when entering areas where the gas may be present. H2S burns and explodes easily. When it burns, H2S gives off sulphur dioxide, another dangerous gas that is toxic, strong smelling, and irritating.

How do you neutralize hydrogen sulfide?

Continuous Chlorination and Filtration. Oxidation is the most common form of treatment used to eliminate hydrogen sulfide. In this process, a chemical is used to convert the dissolved hydrogen sulfide gas into forms of sulfur that can be easily filtered from the water.

Is it bad to breathe in hydrogen sulfide?

Inhalation of high concentrations of hydrogen sulfide can produce extremely rapid unconsciousness and death. Exposure to the liquified gas can cause frostbite injury.

Why does my water stink like rotten eggs?

The Cause Of The Rotten Egg Smell The reason your water probably smells like rotten eggs is because it contains some traces of hydrogen sulfide. … In most cases this smell occurs due to a build-up of hydrogen sulfide in your hot water heater.

What should you do if you are exposed to hydrogen sulfide?

Those exposed to H2S gas should remove themselves from the toxic environment immediately….TreatmentCoughing, wheezing, difficulty breathing, shortness of breath.Chest pain or tightness.Stomach pain, vomiting.Headache.Increased redness, pain or pus from the area of a skin burn.