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Iso Butanol

Isobutanol is an organic compound with the formula (CH₃)₂CHCH₂OH. This colorless, flammable liquid with a characteristic smell is mainly used as a solvent either directly or as its esters. Its isomers, the other butanols, include n-butanol, 2-butanol, and tert-butanol, all of which are important industrially.

Isobutanol appears as a clear colorless liquid with a sweet odor. Flash point 85 - 100°FLess dense than waterVapors heavier than air.

Isobutanol is an alkyl alcohol that is propan-1-ol substituted by a methyl group at position 2. It has a role as a Saccharomyces cerevisiae metabolite. It is a primary alcohol and an alkyl alcohol. It derives from a hydride of an isobutane.

Isobutanol is worth more to refiners than ethanol because it has 26% more energy. Unlike ethanol that is 100% miscible with water, isobutanol has limited solubility, and among other advantages, it doesn’t cause stress cracking in pipelines. Also, its lower oxygen content enables greater amounts to be blended into gasoline. It overcomes the blend wall limitations of ethanol by producing a similar grade of gasoline at only 2.7% oxygen content for refiners. It qualifies as an Advanced Biofuel under the Reformulated Fuel Standard. It can be produced with genetically modified microorganisms by the ABE process.

 

FormulaC4H10O
Boiling point108 °C
Density802 kg/m³
Molar mass74.122 g/mol
ClassificationOrganic compound
Remarks

Isobutanol is used as a raw material for coating resins, Isobutyl acrylate, isobutyl acetate, isobutyl methacrylate, and paint thinners. On the other hand, it is widely used as a solvent because many organic materials are soluble in it.

Tag Identification
  • Flotation agents
  • Floor polishes

  • Extractant in production of drugs and antibiotics, hormones, vitamins
  • Additive in gasoline

  • Anti-corrosion and anti-wear inhibitors in engine oils

  • Agricultural chemicals intermediate
Note
  • Excellent Solvent for acid-curable lacquers and baking finishes derived from Urea, Melamine or Phenolic resins
  • Reduces Viscosity and thus improves the brush ability and flow when added in small portions to Alkyl resin paints 

Appearance (Clarity): Clear

Appearance (Colour): Colourless

Appearance (Form): Liquid

Density (g/ml) @ 20°C: 0.801 - 0.804

Refractive Index (20°C): 1.396 - 1.397

Boiling Range: 106-109°C

Purity (%): 99.9%

Assay (%): 99%

Solubility: Slightly soluble in water

Applications: Manufacturing antioxidants, paint solvents, flavors, and synthetic rubber

Cas-No: 78-83-1

Isobutanol is an important chemical used for producing antioxidants, paint solvents, flavors, and synthetic rubber.
It can also be used as fuel additive to improve the fuel quality. I-butanol is a petroleum-derived product and is produced mainly through propylene carbonylation.

Iso-Butanol (IBA) is a clear liquid with a characteristic odor. It is miscible with all common solvents. It is obtained in Oxo Synthesis of Propylene (C3H6) and Synthesis gas (H2+CO).

Additionally, it can be used as an intermediate in synthesis of many valuable chemicals, such as isobutene, MTBE, and isooctane. Isobutanol is a more desirable gasoline substitute compared with ethanol due to its higher energy density, higher octane numbers, lower hygroscopicity, and lower volatility.

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