N-Octadecane C18H38
CAS number: 593-45-3
Molecular formula: C18H38
Molecular weight: 254.49
EINECS number: 209-790-3
Melting point: 28 °C
Boiling point: 317 °C (lit.)
Density: 0.777 g/mL at 25 °C (lit.)
Vapor density: 8.8 (vs air)
Vapor pressure: 1 mm Hg ( 119 °C)
Refractive index: 1.4390
Flash point: 330 °F
Concept and use of n-octadecane
N-octadecane is a colorless, transparent, flammable liquid with a chemical formula of C18H38 and a molecular weight of 254.49. It is the one with the most carbon atoms in the wax hydrocarbon family and is also the most commonly used one.
N-octadecane is commonly used to make optical glass, high-purity organic reagents, lubricating oils, shoe polishes and other products. It is also widely used in medicine, biology and chemical industries.
The dangers of n-octadecane
1. Flammable: n-octadecane is a flammable substance that is easy to burn when it encounters a fire source or high temperature, so it must be properly stored and used.
2. Toxicity: n-octadecane has low toxicity, but long-term contact with n-octadecane may cause damage to the skin, respiratory tract, etc.
3. Explosion: n-octadecane can explode, usually when a large amount of evaporation in a confined space causes the concentration to reach the explosion limit
Countermeasures for n-octadecane
1. Storage: n-octadecane should be stored in a cool, ventilated, dry, organic material storage place, and any fire source, heat source or electronic equipment should be avoided; the storage place should be away from acids, oxidants and other substances.
2. Use: When using n-octadecane, keep the place well ventilated, avoid any fire source, electronic equipment, etc., and use laboratory equipment that meets safety regulations.
3. Protection: n-octadecane can irritate the eyes and skin, and goggles and gloves should be worn when using it; if accidentally contacted, rinse immediately with plenty of clean water and seek medical attention in time.
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