Isobutanol

CAS Number
78-83-1
EC Number
201-148-0
Chemical Formula
C4H10O
Molecular Weight
74.12 g/mol
FEMA Number
FEMA 2179
Abbreviation
IBA

Description

Isobutanol (CAS 78-83-1), also known as IBA, is a short-chain aliphatic alcohol used across coatings, chemical synthesis, and flavor applications. It functions primarily as a solvent, chemical intermediate, and flavoring agent in both industrial and food-grade contexts. In coatings and resin manufacturing, IBA acts as a reactive solvent and intermediate in the production of isobutyl acrylate and methacrylate esters. These feed directly into adhesive and polymer formulations for various industrial uses.

The food and beverage industry uses it as a FEMA 2179-approved flavoring agent, contributing fruity top notes to confectionery and baked goods. It is also utilized in beverages at controlled concentrations to enhance flavor profiles. In personal care, it functions as a solvent carrier in fragrance compounds and aerosol formulations. This is particularly important where a controlled evaporation rate matters for the overall performance of the final product.

Plasticizer and resin producers also use IBA as a building block for isobutyl esters. This supports critical cross-linking chemistry in both alkyd and amino resin systems used throughout the chemical manufacturing sector. Isobutanol is supplied as a clear liquid in standard bulk quantities including drums, IBCs, and isotanks. Technical grade is the primary commercial form, with food-grade material available to meet specific industry requirements.

The material is available to meet FCC specifications for flavor applications. Purity levels typically range from 99% and above for both industrial and food-grade supply chains globally.

Other Names (Synonyms)

Methyl-2 propanol-1|Isopropyl carbitol|Isomerism:it shows meta isomerism with ethers|Isobutyl alcohol|iso-C4H9OH|i-Butyl alcohol|i-Butanol|Alcool isobutylique|IBA

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point -108 °C
Boiling Point 108 °C
Density 0.8018 g/cm³ @ Temp: 24 °C
Flash Point 82 °F
Appearance colourless oily liquid
Color APHA: ≤10
Odor Slightly suffocating; nonresidual alcoholi
Form Solid
Water Solubility 95 g/L (20 ºC)
Vapor Pressure 8 mm Hg ( 20 °C)
Refractive Index n 20/D 1.396(lit.)
pH 7 (80g/l, H2O, 20℃)
Log P 1 at 25℃

Documentation

Safety & Handling Learn More

Danger
GHS02· Flammable GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard

Hazard Statements

H226 Flammable liquid and vapor
H303 May be harmful if swallowed
H305 May be harmful if swallowed and enters airways
H313 May be harmful in contact with skin

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.

Trade & Regulatory

HS Code 29051990
UN Number 1212
ADR Class 3
Packing Group III
Storage Class 3 - Flammable liquids
WGK (Germany) 1
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