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1,2-BUTANEDIOL

1,2-BUTANEDIOL Structure
1,2-BUTANEDIOL
  • CAS No.26171-83-5
  • Chemical Name:1,2-BUTANEDIOL
  • CBNumber:CB8664950
  • Molecular Formula:C4H10O2
  • Formula Weight:90.12
  • MOL File:26171-83-5.mol
1,2-BUTANEDIOL Property
  • Melting point 0.07°C (estimate)
  • Boiling point 191-192 °C747 mm Hg(lit.)
  • Density 1.006 g/mL at 25 °C(lit.)
  • refractive index n20/D 1.438(lit.)
  • Flash point 200 °F
  • CAS DataBase Reference 26171-83-5(CAS DataBase Reference)
Safety
  • WGK Germany  :2
  • RTECS  :EK0380000
  • NFPA 704:
    2
    1 0
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal word
  • Hazard statements
  • Precautionary statements

1,2-BUTANEDIOL Chemical Properties,Usage,Production

  • Chemical Properties 1,2-Butanediol is a colorless liquid that is soluble in water.
  • Uses 1,2-Butanediol can be used as an ink solvent, as well as in the production of polyester resins and plasticizers. It can also be used as a raw material for unsaturated polyester resins by reacting 1,2-butanediol with unsaturated dicarboxylic acid.
  • Definition ChEBI:1,2-Butanediol is a butanediol in which the two hydroxy groups are located at positions 1 and 2. It has a role as a metabolite. It is a butanediol and a glycol.
  • Hazard 1,2-Butanediol is irritating to the eyes. Exposure at high levels could cause lowering of consciousness.
  • Synthesis In a 100 L reactor, 50 kg of water, 10 kg of acetone, 44 kg of potassium peroxodisulfate complex salt (oxone, 0.071 Kmol), potassium chloride 6.3 kg (0.11 Kmol) and 1-butene 4 kg (56.11, 0.071 Kmol) were added and heated. Stirring reaction to 30 ° C for 12 h, after the reaction is completed, reduce the temperature to 25 ° C, add 20% potassium hydroxide aqueous solution to adjust the pH to 12, heat to 40 ° C, stir reaction for 4h. After the reaction, it was cooled to room temperature, kept strong alkaline, extracted with dichloromethane to remove impurities, and then adjusted to pH 2 with 6 mol/L hydrochloric acid. The product was extracted with ethyl acetate, and the solvent was evaporated to give 1,2-butanediol 5.65 kg, yield 88%.
    26171-83-5.png
1,2-BUTANEDIOL Preparation Products And Raw materials
Raw materials
Preparation Products
1,2-BUTANEDIOL Suppliers
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1,2-BUTANEDIOL Spectrum
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