Butanediol BDO intermediate

Butanediol intermediate is a versatile diol precursor to numerous derivatives such as esters, carbamates, polyesters and urethanes. It is used mainly as a co-monomer in classical diol-condensation reactions with terephthalic acid to produce polybutylene terephthalate (PBT), with diisocyanates to produce polyurethanes and with diacids to yield polyesters with biodegradability characteristics.

Butanediol intermediate’s reactive sites are its hydroxyl groups, which undergo all the typical reactions of alcohols. In addition to the condensation reactions noted above, it can be converted to simple esters and halides, dehydrated to tetrahydrofuran (THF) and dehydrogenated to gamma-butyrolactone.

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Application Information

Applications

Description

Benefits

Biodegradable Plastics

Intermediate in production of bio-degradable plastics.

  • Biodegradable
  • High boiling point
  • Soluble in water, alcohols, ketones and esters
Hot Melt Polyesters

Component of hot melt polyesters when reacted with adipic acid, sebacic or phthalic acid.

  • Biodegradable
  • High boiling point
  • Soluble in water, alcohols, ketones and esters

 

Polybutylene Terephthalate

Intermediate reacted with dimethyl terephthalate or terephthalic acid for production of PBT, an engineering thermoplastic material used extensively in injection molding applications.

  • Biodegradable
  • High boiling point
  • Soluble in water, alcohols, ketones and esters

 

Polyester Coatings

Component of polyester coatings when reacted with other diols and terephthalic acid or other dicarboxylic acids.

  • Biodegradable
  • High boiling point
  • Soluble in water, alcohols, ketones and esters

 

Polyester Plasticizers

Component of polyester plasticizers when reacted with neopentyl glycol.

  • Biodegradable
  • High boiling point
  • Soluble in water, alcohols, ketones and esters

 

Polyurethane Manufacturing
Solvent

Component in production of solvents.

  • Biodegradable
  • High boiling point
  • Soluble in water, alcohols, ketones and esters

 

Document Library

Product Literature(publicly available)

Additional Product Literature

Safety Data Sheets

Technical Information

Formulations and Solution Properties

Molecular weight: 90.12
Physical form: Clear liquid @ 25°C
Color (APHA): 5 max.
Purity: 99.5% min.
Moisture content: 0.05% max.
Boiling point: 228°C
Flash point: >121°C
Freezing point: 20.1°C
Vapor pressure: <0.1 mm Hg @ 20°C
Viscosity: 71.5 cp @ 25°C
Specific gravity: 1.017 @ 25°C
Surface tension: 44 mN/M @ 25°C
Heat of vaporization: 18.3 Kcal/mole
Solubility parameters: 12.1 cal1/2 cm-3/2

Market Information

Markets

Application

Product Types or Functions

Energy
Biodegradable Plastics, Hot Melt Polyesters, Polybutylene Terephthalate, Polyester Coatings, Polyester Plasticizers, Polyurethane Manufacturing, Solvent
Intermediate
More Specialties - Industrial Specialties
Biodegradable Plastics, Hot Melt Polyesters, Polybutylene Terephthalate, Polyester Coatings, Polyester Plasticizers, Polyurethane Manufacturing, Solvent
Intermediate