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[Korea PTG Co., Ltd.]

  • South Korea South Korea
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>> 1,4 BUTANEDIOL (1,4 BDO)

  • Process : Davy Mckee (KPT)

  • 1,4-Butanediol(also known as its less popular chemical synonyms:1,4-butylene glycol, 1,4- tetramethylene glycol and 1,4-dihydroxybutane ) is a low-viscosity glycol used almost exclusively as an intermediate to synthesize other chemicals and polymers.

    The butanediol molecule maintains its original chemical identity only when used as as a solvent. Since butanediol can undergo the typical reactions of a primary alcohol, it lends itself to a very large number of chemical modifications. As it is a difunctional molecule, most of its use is in the area of polymers, such as

    polyurethanes(prepolymers, cast elastomers, thermoplastic elastomers, reaction injection molding, and fibers such as spandex), polybutylene terephthalate(PBT), a large family of homopolymers and copolymers of N- vinyl-2-pyrrolidone, and copolyester-ether thermoplastic elastomer(COPE).

  • Production Capacity : 28,000 MTA

-. Product Physical Properties

Property Items / Product 1,4-Butanediol
Molecular Weight 90.12
Chemical Formula Contact details
Structural Formula Contact details
Smell Almost odorless
Boiling Point (°C) 229.2
Specific Gravity (60/4°C) 1.0125
Viscosity (70°C, cP) 71.5
Flash Point (°C) 155
Retractive Index 1.445

-. Product Specifications

Analysis Items / Product 1,4-Butanediol
Appearance Water clear
Purity (wt.%) 99.5 min.
Molten Color (APHA) -
Color (APHA) 10 max.
Water (wt.%) 0.05 max.
Ash (ppm) -
Carbonyl No. (mgKOH/g) 0.5 max.
Peroxide Content (ppm) -
Solidification Point (°C) 19 ~ 20
CAS No. 110-63-4

-. Uses

  • Polybutylene Terephthalate(PBT)
    - Automotive
    - Electrical/Electronics
    - Water system
    - Others

  • Thermoplastic Polyurethanes
  • Castable Polyurethanes
  • Reaction Injection Molding
  • Tetrahydrofuran
  • N-Methly-2-Pyrrolidone(NMP)
  • Gamma-Butyrolactone(GBL)
  • N-Vinyl-2-Pyrrolidone(NVP)