Tetrahydrophene – an unfamiliar professional term, but as soon as it’s said to be the pungent odor smelled during a gas leak, everyone immediately realizes, “Oh~So it’s it
Today, let’s learn about this familiar and unfamiliar gas – tetrahydrothiophene
Tetrahydrothiophene action
Mainly used as an odorant (i.e. warning agent) for gas fuels such as urban gas and natural gas. It can also be used as raw materials for the production of pharmaceuticals, pesticides, and photo chemicals.
According to international standards, the odorant for urban gas, natural gas, and other gases must use tetrahydrothiophene. Tetrahydrophene is not corrosive to materials such as gas equipment and transportation pipeline gaskets, and does not cause habitual dulling of the human sense of smell. Therefore, the previously used odorants such as ethanethiol have been banned and become leak warning agents for gas fuels such as urban gas and natural gas.
Tetrahydrophene has an anesthetic effect. Used as pharmaceuticals, pesticides, and organic synthesis materials.
Storage method
Storage precautions: Store in a cool and ventilated warehouse. Stay away from sources of fire and heat. The storage temperature should not exceed 37 ℃. Keep the container sealed. It should be stored separately from oxidants and avoid mixing storage. Adopt explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to generating sparks. The storage area should be equipped with emergency response equipment for leaks and suitable containment materials.
Hazard Overview
Health hazards: This product has an anesthetic effect. When mice are poisoned by inhalation, they experience motor excitement, ataxia, anesthesia, and ultimately die. In chronic poisoning experiments, mice exhibit behavioral abnormalities, cessation of weight gain, and changes in liver function. Has weak irritation to the skin.
Environmental hazards: May cause pollution to water bodies.
Explosive hazard: This product is flammable.
Emergency measures
Skin contact: Remove contaminated clothing and thoroughly rinse the skin with soap and water.
Eye contact: Lift the eyelids and rinse with flowing water or saline solution. Seek medical attention.
Inhalation: Quickly leave the scene and move to a place with fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, administer oxygen. If breathing stops, immediately perform artificial respiration. Seek medical attention.
Ingestion: Drink plenty of warm water and induce vomiting. Seek medical attention.
Fire protection measures
Dangerous characteristics: It is prone to combustion when exposed to high heat, open flames, and strong oxidants.
Harmful combustion products: carbon monoxide, carbon dioxide, hydrogen sulfide, sulfur dioxide.
Fire extinguishing method: Spray water to cool the container, and if possible, move the container from the fire scene to an open area. Foam, carbon dioxide, dry powder, sand.
Leakage handling
Emergency response: Quickly evacuate personnel from the contaminated area to a safe zone, isolate them, and strictly restrict their entry and exit. Cut off the fire source. It is recommended that emergency responders wear self-contained positive pressure respirators and protective clothing. Cut off the leakage source as much as possible. Prevent the flow into restricted spaces such as sewers and drainage ditches.
Minor leakage: Absorb with activated carbon or other inert materials. It can also be brushed with lotion made of incombustible dispersant, and the washing solution is diluted and discharged into the wastewater system.
Massive leakage: Construct embankments or dig pits to contain it. Cover with foam to reduce steam disaster. Transfer to a tanker or dedicated collector using an explosion-proof pump, and recycle or transport to a waste disposal site for disposal.