25265-75-2

Basic information

• Product Name: Butyleneglycol
• Synonyms: Butyleneglycol
• CAS NO: 25265-75-2
• Molecular Formula: C4H10O2
• Molecular Weight: 90.121
• Mol File: 25265-75-2.mol
• Article Data: 0

Chemical Properties

• Melting Point: 199℃
• Boiling Point: 159.9 °C at 760 mmHg
• Flash Point: 66.3 °C
• Appearance: /
• Density: 1.001 g/cm³
• Refractive Index: 1.4460 (589.3 nm 20℃)
• CAS DataBase Reference: Butyleneglycol(CAS DataBase Reference)
• NIST Chemistry Reference: Butyleneglycol(25265-75-2)
• EPA Substance Registry System: Butyleneglycol(25265-75-2)

Safety Data

• Hazardous Substances Data: 25265-75-2(Hazardous Substances Data)

Usage

Chemical Properties

Commercial 1,2-, 1,3-, 1,4-, and 2,3-butanediols are clear, viscous liquids that are miscible with water and alcohol. They all have a molecular weight of 90.12.

Uses

Butanediols are not used extensively commercially, but there is considerable interest in them as intermediates for polyester resins. Because of its low toxicity, the 1,3-isomer, has been proposed for cosmetic and pharmaceutical applications.

Production Methods

1,2-Butanediol is a relatively new product that is produced commercially by hydrating the corresponding 1,2-butylene oxide in a manner similar to that described for other simple glycols . According to Curme and Johnston , 1,3-butanediol is prepared commercially by the catalytic reduction of acetaldol but may be produced by other routes as well. 1,4- Butanediol is produced in Germany by hydrogenating 2- butyne-1,4-diol, but other methods can also be used. 2,3-Butanediol is produced by fermentation, and the distribution of optical isomers depends on the species of bacteria used.