Molecular formula C3H4O2, molecular weight 72.06. Colorless liquid, pungent odor, corrosive, and strong acidity. Soluble in water, ethanol and ether, but also soluble in benzene, acetone, chloroform, etc. The melting point is 13.5°C, the boiling point is 140.9°C, and the density (20/4°C) is 1.0611g/cm³. The chemical nature is lively. It is easy to polymerize in air and can be reduced to propionic acid by hydrogenation. Addition with hydrogen chloride generates 2-chloropropionic acid. Used in the preparation of acrylic resins and other organic synthesis. It is produced by oxidation of acrolein or hydrolysis of acrylonitrile, or it can be produced by carbon monoxide, acetylene and water under the action of a nickel catalyst.
English name: acrylic acid
CAS No.: 79-10-7
Molecular formula: C3H4O2
Structural formula: CH2=CHCOOH
Molecular weight: 72.06
Main ingredients: Content ≥99.0%.
Appearance and properties: colorless liquid, prickly
Melting point (℃): 14
Boiling point (℃): 141
Relative density (water = 1): 1.05
Relative vapor density (air=1): 2.45
Saturated vapor pressure (kPa): 1.33(39.9℃)
Heat of combustion (kJ/mol): 1366.9
Log value of octanol/water partition coefficient: 0.36 (calculated value)
Flash point (℃): 50
Ignition temperature (℃): 438
Upper explosion limit%(V/V): 8.0
Lower explosion limit %(V/V): 2.4
Solubility: Miscible with water, miscible with ethanol and ether.
Acrylic acid is mainly used in industry to produce acrylic esters (resins), accounting for about 60% of the total consumption of acrylic acid. It is used in construction, papermaking, leather, textiles, plastic processing, packaging materials, daily chemicals, water treatment, oil production, Metallurgy and other fields. Acrylic acid occupies a very important position in the field of fine chemicals. Polypropylene and acrylic acid copolymers produced with acrylic acid are used as dispersants, flocculants and thickeners. In the late 1970s, polypropylene and acrylic copolymers were used in super absorbent resins and detergent builders.