Overview
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.
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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℃ |
Safety & Handling
Danger GHS02 GHS05 GHS07 GHS08 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 H315 Causes skin irritation H318 Causes serious eye damage H319 Causes serious eye irritation H332 Harmful if inhaled H333 May be harmful if inhaled H335 May cause respiratory irritation H336 May cause drowsiness or dizziness H401 Toxic to aquatic life 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. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P331 Do NOT induce vomiting. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P317 Get emergency medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29051990 |
| UN Number | 1212 |
| ADR Class | 3 |
| Packing Group | III |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 78-83-1
- EC Number
- 201-148-0
- Mol. Weight
- 74.12
- HS Code
- 29051990
- Category
- Alcohols & Glycols