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Product Description

Chemical Name:

Isobutyric Acid; 2-Methylpropionic acid

CAS#: 79-31-2

 Chemical Formula:


 Typical Properties


Colorless transparent liquid

Color(Pt-Co): ≤15

Molecular Weight: 88.11

 Specific Gravity (ρ20°C, g/cm3): 0.948

Refractive Index (nD25): 1.3928

 Boiling Point (°C): 153-154

Flash Point (°C): 59

Purity (%): ≥99.00



  • Isobutyric Acid is a colorless, medium boiling liquid. Esters of Isobutyric acid are used as solvents for various applications where desirable odors and flavor characteristics are important. The potassium salt of Isobutyric acid is effective as a solubility promoter in the caustic extraction of mercaptans from our petroleum stocks.
  • Isobutyric acid is also used as a disinfecting agent, preservative and tanning agent. It finds applications in textile, varnish and the leather industry.
  • Isobutyric Acid is dangerous chemical and should be stored in a cool, ventilated warehouse. It shall be stored separately from the oxidizing agent, the reducing agent and the alkali, and mixed storage shall be avoided. Explosion-proof type lighting and ventilation facilities shall be adopted. It is forbidden to use mechanical equipment and tools that are easy to generate sparks.


25 kg, 200kg plastic or iron drum

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