Isopropyl Alcohol

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What is Isopropyl Alcohol

Isopropanol (IPA), also known as 2-propanol, is an organic compound with the chemical formula C3H8O. It is an isomer of n-propanol. It is a colorless transparent liquid with the smell of a mixture of ethanol and acetone. It is soluble in water, alcohol, ether, benzene, chloroform and most other organic solvents.


Isopropanol is an important chemical product and raw material, mainly used in pharmaceuticals, cosmetics, plastics, spices, coatings, etc.


On October 27, 2017, the list of carcinogens published by the international agency for research on cancer of the World Health Organization (who) was preliminarily sorted out for reference. The production of isopropanol using strong acid is on the list of class I carcinogens and isopropanol is on the list of class III carcinogens.

Isopropyl Alcohol Info

Chemical formula: C3H8O
Molecular weight: 60.095
CAS accession No.: 67-63-0
EINECS accession No.: 200-661-7
Melting point: - 89.5 ℃
Boiling point: 82.5 ℃
Water solubility: soluble
Density: 0.7855 g / cm ³
Appearance: colorless transparent liquid
Flash point 11.7 ℃ (CC)
Safety description S7; S16; S24/25; S26; S36/37
Hazard symbol f
Hazard description R10; R11; R38/38; R40; R67

Isopropyl alcohol index.png

FIgure 1 - Isopropyl alcohol Index

Main Purpose of Isopropyl Alcohol

1. As chemical raw materials, it can produce acetone, hydrogen peroxide, methyl isobutyl ketone, diisobutyl ketone, isopropylamine, isopropyl ether, isopropyl chloride, isopropyl esters of fatty acids and chlorinated fatty acids. In fine chemicals, it can be used to produce isopropyl nitrate, isopropyl xanthate, triisopropyl phosphite, aluminum isopropoxide, medicines and pesticides, as well as diisoacetone, isopropyl acetate, thymol and gasoline additives.


2. As a solvent, it is a relatively cheap solvent in industry. It has a wide range of uses, can be freely mixed with water, has a stronger solubility in lipophilic substances than ethanol, can be used as a solvent for nitrocellulose, rubber, coatings, shellac, alkaloids, etc., can be used for the production of coatings, inks, extractants, aerosols, etc., can also be used as antifreeze, detergent, additive for blending gasoline, dispersant for pigment production, fixing agent for printing and dyeing industry Antifogging agents for glass and transparent plastics are used as diluents for adhesives, antifreezes and dehydrators.


3. Barium, calcium, copper, magnesium, nickel, potassium, sodium, strontium, nitrite, cobalt, etc. are determined as chromatographic analysis standards.


4. In the electronic industry, it can be used as a cleaning degreaser.


5. In the oil industry, cottonseed oil as an extractant can also be used for degreasing animal derived tissue membranes.