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2-butanol

CAS Number
78-92-2
EC Number
201-158-5
Chemical Formula
C4H10O
Molecular Weight
74.12 g/mol

Description

2-Butanol (CAS 78-92-2 ), also sold as sec-butanol and sec-butyl alcohol, is a mid-chain secondary alcohol used primarily as an industrial solvent and chemical intermediate. Its secondary hydroxyl structure makes it a practical building block for producing methyl ethyl ketone (MEK) and other downstream chemicals. Buyers source it across food, personal care, and polymer manufacturing. In flavor applications, 2-butanol contributes to the production of FEMA -listed flavor compounds and serves as a solvent carrier in fragrance formulations. Polymer and coatings manufacturers use it as a reactive solvent in curing and cross-linking systems, where controlled evaporation rate affects film formation. Personal care formulators incorporate it as a solvent for resins, fixatives, and active ingredients in aerosol and leave-on products for various applications. It also functions as a stabilizer in certain chemical processes where secondary alcohols are preferred over primary alternatives to limit over-oxidation during the reaction. 2-Butanol is supplied as a clear liquid in drum, IBC, and bulk tanker quantities. Technical grade is the most common commercial specification for industrial use. Food-grade material is available for flavor and fragrance applications. Buyers should confirm grade suitability against FCC standards depending on end-use requirements. Contact us for supply of 2-butanol Request Quote

Other Names (Synonyms)

sec-butyl alcohol | sec-butanol | s-butyl alcohol | methyl ethyl carbinol | ethyl methyl carbinol | butanol-2 | 2-hydroxybutane | 2-butyl alcohol

Key Technical Features

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

Physical Properties

Melting Point-114 °C
Boiling Point99.5 °C
Density0.8063 g/cm³ @ Temp: 20 °C
Flash Point80 °F
AppearanceColourless liquid
ColorColorless
OdorStrong, pleasant.
FormLiquid
Water Solubility12.5 g/100 mL (20 ºc)
Vapor Pressure12.5 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.397(lit.)
pH7 (20°C)
Log P0.610

Safety & Handling

Warning
GHS02· FlammableGHS07· IrritantGHS08· Health Hazard

Hazard Statements

H226Flammable liquid and vapor
H303May be harmful if swallowed
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H336May cause drowsiness or dizziness
H361Suspected of damaging fertility or the unborn child

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P235Store in a well-ventilated place. Keep cool.
P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29051490
UN Number1120
ADR Class3
Packing GroupIII
WGK (Germany)1