Tetrahydrofuran-Health Hazard and Toxicity
The acute toxicity of THF by inhalation and ingestion is low. Liquid THF is a severe eye irritant and a mild skin irritant, but is not a skin sensitizer. At vapor levels of 100 to 200 ppm, THF irritat
Sep 9，2019 Organic Chemistry
Sulfur dioxide--Health Hazard and Toxicity
The acute toxicity of sulfur dioxide is moderate. Inhalation of high concentrations may cause death as a result of respiratory paralysis and pulmonary edema. Exposure to 400 to 500 ppm is immediately
Sep 9，2019 Inorganic chemistry
Methanol-Hazard and Toxicity
Methyl alcohol, also known as methanol or wood alcohol, is a clear, colorless, flammable liquid that is the simplest alcohol. World production of methanol is approximately 8.5 billion gallons annually
Sep 9，2019 Organic reagents
Mercury-Hazard and Toxicity
Mercury is a chemical element with the symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum. A heavy, silvery d-block element, mercury is the only met
Sep 9，2019 Inorganic chemistry
Lithium aluminium hydride-Hazard and Toxicity
Lithium aluminium hydride, commonly abbreviated to LAH, is an inorganic compound with the chemical formula LiAlH4. It was discovered by Finholt, Bond and Schlesinger in 1947. This compound is used as
Sep 9，2019 Inorganic chemistry
Lead-Hazard and Toxicity
Lead is a bluish-white, heavy metallic element with properties that are more metal-like than the properties of metal loids or nonmetals. Lead can be found in its native state, meaning that elemental m
Sep 9，2019 Inorganic chemistry
Iodine-Hazard and Toxicity
Iodine is widely distributed in nature and it exists in the form of compounds. There are traces of iodine in rocks, soil, water, flora and fauna and air. But in addition to seawater, the distribution
Sep 9，2019 Inorganic chemistry
Hydrogen Sulfide-Hazard and Toxicity
Hydrogen Sulfide is a colorless, very poisonous, flammable gas with the characteristic foul odor of rotten eggs. It often results from the bacterial breakdown of organic matter in the absence of oxyge
Sep 9，2019 Inorganic chemistry
Hydrofluoric acid-Hazard and Toxicity
Hydrofluoric acid (HF) is an aqueous solution of hydrogen fluoride gas. At room temperature, it appears as colorless transparent to light yellow smoke liquid with pungent odor. It has a specific gravi
Sep 9，2019 Inorganic chemistry
Hydrogen-Hazard and Toxicity
Hydrogen,H2, is a tasteless,colorless, odorless gas that may be liquified by cooling under pressure. Hydrogen is used in welding, in the production of ammonia, methanol, and other chemicals, for the h
Sep 9，2019 Inorganic chemistry