Isobutanol (IBA) CAS 78-83-1 Premium Aliphatic Alcohol Solvent
Isobutanol (IBA) is a clear, colorless, and highly volatile liquid organic compound characterized by a distinctive, sweetish aliphatic odor. Positioned as a vital medium-boiling aliphatic alcohol, Isobutanol plays an irreplaceable role in modern chemical manufacturing and industrial coatings formulation.
Our premium-grade Isobutanol is predominantly processed as a high-efficiency feedstock for the synthesis of specialty ethers and esters. These derivatives act as crucial plasticizing agents heavily relied upon during the production of high-performance cable insulation, automotive refinish systems, and industrial surface finishes.
- Excellent Latent Solvency: When blended with hydrocarbon solvents, IBA acts as a powerful latent solvent, drastically reducing the viscosity of nitrocellulose lacquers and alkyd resin formulations while improving flow and leveling profiles.
- Optimal Evaporation Characteristics: Its medium evaporation rate prevents surface blushing and defect formation in industrial baking enamels and car finishing applications under humid conditions.
- Exceptional Blending Profile: Fully compatible with a broad spectrum of common organic solvents, including aliphatic and aromatic hydrocarbons, esters, glycols, and other industrial alcohols.
Isobutanol Description
Name: Isobutanol (IBA)
Synonyms: 2-Methylpropan-1-ol / Isobutyl alcohol / Isopropyl carbinol / 2-Methyl-1-propanol / 2-Methylpropyl alcohol
Molecular Formula: C4H10O
Molecular Weight: 74.12
CAS NO.: 78-83-1
Density: 0.8±0.1 g/cm3
Boiling point: 105.0±8.0 °C at 760 mmHg
Melting point: −108 °C(lit.)
Flashing point: 27.8±0.0 °C
Purity: 99%
Appearance: Colorless liquid with a characteristic smell
Water Solubility: Partially soluble in water (dissolves in approximately 20 parts of water at ambient temperature); fully miscible with ethanol, diethyl ether, and alternative organic phases.
Properties: Its vapor can form an explosive mixture with air. It can cause combustion and explosion when exposed to open flames or high heat. It releases toxic gases when heated. It is miscible with ethanol and ether and can be dissolved in about 20 parts of water. It can react strongly with oxidants.
Package: Delivered in standard heavy-duty steel drums containing 170 kg net weight per drum, or shipped via high-volume ISO tanks upon commercial agreement.
Storage: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The storage temperature should not exceed 37°C. Keep the container sealed. Store separately from oxidants and acids and do not store them together. Use explosion-proof lighting and ventilation facilities. It is prohibited to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment and appropriate containment materials.
Safety Protection: High concentrations of vapor are irritating to the eyes, skin, mucous membranes and upper respiratory tract.
About Us: With over many years as a certified Isobutanol manufacturer, we combine innovation with stringent production standards to deliver high-performance product.
Isobutyl alcohol Technical
| Item | Index |
| Appearance | Colorless liquid |
| Chromaticity | ≤10 |
| 2 – ethyl alcohol content | ≥99.5% |
| Sulfuric acid color test | ≤25 |
| Acidity (in acetic acid) | ≤0.01% |
| Moisture | ≤0.10% |
| Carbonyl compounds content | ≤0.05 |
As a certified Isobutanol factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
2-Methyl-1-propanol Applications
- High-Performance Industrial & Automotive Coatings: Isobutanol is primarily utilized as a solvent in the coatings industry to optimize viscosity and application behaviors. It effectively prevents the “blushing” of lacquers during drying, enhances the gloss and gloss retention of amino-alkyd baking varnishes, and improves the overall surface finish of automotive coatings and industrial plastic enamels.
- Chemical Intermediates & Esterification Processes: A major chemical chemical pathway for IBA is its conversion into specialty esters. It serves as the direct raw material for manufacturing Isobutyl Acetate (IBAC), a widely used solvent in the pharmaceutical and fragrance industries. It is also processed into isobutyl phthalate plasticizers for cable insulation and rubber compounds.
- Extraction Solvent in Pharmaceutical Processing: Due to its unique distribution coefficient and relative low toxicity, Isobutanol is highly favored as an extractant in the pharmaceutical sector. It is widely deployed in the separation and purification of antibiotics, hormones, vitamins, and complex organic acids from fermentation broths.
- Agrochemical & Spice Formulation: In line with standard GB 2760-96 provisions, highly purified Isobutanol forms a fundamental base for permissible edible spices and flavorings. Additionally, it serves as a reaction medium and carrier solvent in the synthesis of targeted agrochemicals and crop protection agents.
Q1: What is the primary difference in solvent performance between Isobutanol (IBA) and n-Butanol (NBA)?
A: While both are standard medium-boiling alcohols, Isobutanol has a slightly lower boiling point (108°C vs 117°C for n-butanol) and a faster evaporation rate. In many resin formulations, IBA can replace n-butanol to achieve faster drying times and lower solution viscosity, while maintaining similar solvency power for amino and alkyd resins.
Q2: Does your Isobutanol comply with international electronic or pharmaceutical grade specifications?
A: Our standard industrial-grade Isobutanol maintains a high purity, which is excellent for chemical synthesis and coatings. For specific electronic-grade or high-purity chromatographic application requirements, please contact our technical department directly for tailored batch selections.
Q3: How do you manage the moisture control in bulk Isobutanol shipments?
A: Moisture control is vital as water contamination can alter polymer solvency. Our factory limits moisture content to ≤0.10% at the packaging line. For bulk shipments, we utilize nitrogen-blanketed storage tanks and sealed drums to ensure that atmospheric moisture does not compromise the product during transport.
