The molecular weight (MW) of isobutanol (Isobutyl Alcohol, CAS: 78-83-1) is 74.12 g/mol.
Isobutanol (CAS: 78-83-1) plays a significant role in the field of chemical production raw materials due to its properties and applications. As a common organic compound, isobutanol possesses unique physical and chemical properties, making it widely used in various industrial production processes.
Isobutanol (CAS: 78-83-1) Chemical & Physical Properties
| Property | Value |
|---|---|
| Molecular Formula | C₄H₁₀O |
| Molecular Weight | 74.12 g/mol |
| CAS Number | 78-83-1 |
| Appearance | Colorless, transparent liquid |
| Odor | Mild characteristic alcohol odor |
| Density (20 °C) | ~0.80–0.81 g/cm³ |
| Boiling Point | ~108 °C |
| Melting Point | ~–108 °C |
| Flash Point (Closed Cup) | ~28 °C |
| Water Solubility (20–25 °C) | Slightly soluble (~8–9 wt%) |
| Vapor Pressure (20 °C) | ~8–10 mmHg |
| Alcohol Type | Primary alcohol |
| Structural Type | Branched-chain |
Compared with other common alcohols:
- Higher MW than ethanol (46.07 g/mol) → lower volatility
- Similar MW to n-butanol, but branched structure offers different solvency and stability
- Better suited for water-sensitive industrial systems
What is Isobutanol (IBA) used for?
Isobutanol (CAS: 78-83-1) is a colorless, transparent liquid with a distinctive odor. It is chemically reactive and widely used in industrial and consumer applications. Its primary uses include:
- Solvent: Serves as an efficient solvent in the manufacture of paints, inks, resins, and adhesives due to its excellent volatility and dissolving properties.
- Chemical intermediate: Used to synthesize isobutyl acetate (for fragrances and solvents), plasticizers (such as phthalates), and intermediates for pharmaceuticals and pesticides.
- Fuel additive: Blended with gasoline to increase octane ratings and reduce engine knocking.
- Personal care and cleaning agents: Employed in producing detergents, cosmetic fragrances, and industrial cleaners.
- Other Applications: Serves as an additive in rubber, textile, and electronics industries, or for biofuel extraction.
How to store isobutanol IBA (CAS: 78-83-1)?
- Isobutanol (IBA) should be stored in a cool, well-ventilated, dry environment, away from fire and heat sources.
- It must be kept in tightly sealed metal containers and isolated from oxidizing agents, acids, and strong alkalis.
Why Choose Gneebio as Your Supplier?
As a leading manufacturer and exporter of fine chemicals, Henan Gneebio provides Isobutanol (IBA) that meets both industrial and laboratory-grade standards. We supply to customers across the chemical, pharmaceutical, and materials industries, ensuring consistent quality, reliable logistics, and professional technical support.
Our Advantages:
- We run advanced ISO9001, ISO14001, and GMP-certified production lines.
- Our products reach over 60 countries with long-term partners in Asia, Africa, and Latin America.
- Ample inventory ensures fast, reliable bulk delivery.
- Gneebio provides personalized technical and business support from inquiry to after-sales.
Click here to get the latest isobutanol Supplier market prices for 2026.
