Alcohols & Glycols
REACH
1-butanol
CAS Number
71-36-3
EC Number
200-751-6
FEMA Number
FEMA 2178
What is 1-butanol?
1-Butanol (CAS 71-36-3), also known as n-butyl alcohol, is a short-chain primary alcohol used as a solvent, chemical intermediate, and flavoring agent. FEMA 2178.
Where is 1-butanol used?
- Coatings and resins: reactive solvent in butylated amino resins, including urea- and melamine-formaldehyde systems for automotive and industrial finishes
- Personal care: carrier solvent in nail care products, fragrances, and skin-conditioning preparations
- Flavoring agent: buttery and fruity top notes in food and beverage products
- Chemical building block for butyl acrylate and butyl acetate synthesis
- It is essential for glycol ether synthesis in polymer and plasticizer production.
Commercial specifications
- Clear liquid in drums, IBCs, and bulk tanker quantities
Other Names (Synonyms)
propyl carbinol|n-propyl carbinol|n-butylalkohol|n-butyl alcohol|n-butan-1-ol|butyl hydroxide|1-hydroxybutane|1-butyl alcohol
What are the physical properties of 1-butanol?
Melting Point -89.8 °C
Boiling Point 117.7 °C
Density 0.8098 g/cm³ @ Temp: 20 °C
Flash Point 95 °F
Appearance Colorless liquid
Color APHA: ≤10
Odor Alcohol-like; pungent; strong; characteristic; mildly alcoholic, non residual.
Form Liquid
Water Solubility 80 g/L (20 ºC)
Vapor Pressure 6.7 hPa (20 °C)
Refractive Index n 20/D 1.399(lit.)
pH 7 (70g/l, H2O, 20℃)
Log P 0.88
How is 1-butanol classified and handled safely? Learn More
Danger
GHS02· Flammable GHS05· Corrosive GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H226 Flammable liquid and vapor
H302 Harmful if swallowed
H305 May be harmful if swallowed and enters airways
H313 May be harmful in contact with skin
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.
Which trade and regulatory codes apply to 1-butanol?
HS Code 29051300
UN Number 1120
ADR Class 3
Packing Group III
Storage Class 3 - Flammable liquids
WGK (Germany) 1