Why does hydrogen sulfide smell? What is the color and smell of hydrogen sulfide

Hydrogen sulfide is an inorganic compound with the chemical formula H S. Under normal circumstances, it is a colorless, flammable acid gas, with a foul odor and a smell like rotten eggs when the concentration is low; At high concentrations, there is no odor (because high concentrations of hydrogen sulfide can paralyze the olfactory nerve). It is soluble in water, and at 0 °C, 1 mole of water can dissolve about moles of hydrogen sulfide.

It's not that hydrogen sulfide smells, but that the smell is because of hydrogen sulfide.

Hydrogen sulfide is colorless and usually has a rotten egg-like odor that is distinct.

Hydrogen sulfide is dissolved in water to form a weak acidity, which will cause hydrogen embrittlement damage to metal. Hydrogen embrittlement often causes the sudden breaking of downhole pipe bundles, the blasting of surface manifolds and instruments, the destruction of wellhead devices, and even serious blowouts out of control or fire accidents. H2S can accelerate the aging of non-metallic materials, so that the seals made of non-metallic materials such as rubber, oil-impregnated graphite, asbestos and other non-metallic materials in surface equipment, wellhead devices and downhole tools fail.

Hazards of Hydrogen Sulfide:

Harmful to the environment, about 100 million tons of hydrogen sulfide enter the atmosphere every year in the world, of which about 3 million tons are spread by factors such as factory leakage and production release; In particular, it is very harmful to aquatic life.

It is flammable, mixed with air to form a first-class mixture, and will cause combustion when exposed to open flame and high heat. In case of concentrated nitric acid, fuming nitric acid or other strong oxidants, it will react violently and occur.

The above content reference: Encyclopedia - Hydrogen sulfide.

Hydrogen sulfide is a colorless gas with a rotten egg-like odor.

Hydrogen sulfide is a flammable acid gas under standard conditions, colorless, with the smell of rotten eggs at low concentrations, and sulfur odors when the concentration is very low, and is highly toxic. Soluble in water, soluble in alcohols, petroleum solvents and **.

Hydrogen sulfide is chemically unstable and easy to burn in the air, which can blacken the surface of silver, copper and other products, and react with many metal ions to form sulfide precipitates that are insoluble in water or acid.

Uses of hydrogen sulfide.

Hydrogen sulfide is used in the synthesis of phosphors, electric discharge, optical conductors, photoelectric meters, etc. Organic synthesis of reducing agents. It is used in metal refining, pesticides, medicine, and catalyst regeneration. General purpose reagents. Preparation of various sulfides.

Hydrogen sulfide is used in the manufacture of inorganic sulfides and is also used in chemical analyses such as the identification of metal ions.

The above content reference: Encyclopedia - Hydrogen sulfide.

Sulfuric acid has no odor.

Sulfuric acid is an inorganic compound with the chemical formula H2SO4, the most important oxygenated acid of sulfur. Pure sulfuric acid is a colorless, oily liquid, when crystallized, usually using its various concentrations of aqueous solutions, using the tower method and contact method.

The former is crude dilute sulfuric acid, and the mass fraction is generally about 75%; The latter can obtain concentrated sulfuric acid with a mass fraction of 338 and a relative density.

Storage:

Store in a cool, ventilated warehouse, the storage temperature does not exceed 35, the relative humidity does not exceed 85%. Keep the container tightly sealed. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace.

Keep away from flammable and combustible materials to prevent vapor leakage into the workplace air. Avoid contact with reducing agents, alkalis, and alkali metals, and load and unload lightly during handling to prevent damage to packaging and containers.

Equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances behind. When diluting or preparing the solution, the acid should be added to the water to avoid boiling and splashing and injuring personnel.

Hydrogen sulfide is a colorless, highly toxic, acidic gas. There is a peculiar smell of rotten eggs, olfactory threshold: 20 30 ppm strong odor, 100 50 ppm can paralyze the olfactory nerve.

Hydrogen sulfide gas is soluble in water, ethanol and glycerin, and is chemically unstable. Hydrogen sulfide burns to produce a blue flame and produces toxic sulfur dioxide gas, which can damage people's eyes and lungs. When there is enough air, combustion produces SO2 and H2O

Hydrogen sulfide is a flammable and hazardous chemical, which can be mixed with air to form a first-class mixture, which can cause combustion in case of open flame and high heat energy. Mix with air or oxygen in the right proportions (it will be**.