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HEXANOIC ANHYDRIDE

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HEXANOIC ANHYDRIDE Basic information
HEXANOIC ANHYDRIDE Chemical Properties
  • Melting point:-40 °C
  • Boiling point:246-248 °C(lit.)
  • Density 0.928 g/mL at 20 °C(lit.)
  • refractive index n20/D 1.428(lit.)
  • Flash point:>230 °F
  • storage temp. Store below +30°C.
  • solubility ethanol: soluble1g/10 mL, clear, colorless
  • form Liquid
  • color Clear colorless to light yellow
  • explosive limit0.7%(V)
  • Water Solubility Hydrolyzes in water.
  • Sensitive Moisture Sensitive
  • BRN 1776561
  • CAS DataBase Reference2051-49-2(CAS DataBase Reference)
  • EPA Substance Registry SystemHexanoic acid, anhydride (2051-49-2)
Safety Information
  • Hazard Codes C
  • Risk Statements 34
  • Safety Statements 26-36/37/39-45
  • RIDADR UN 3265 8/PG 2
  • WGK Germany 3
  • TSCA Yes
  • HazardClass 8
  • PackingGroup III
  • HS Code 29159000
MSDS
HEXANOIC ANHYDRIDE Usage And Synthesis
  • Chemical Propertiesclear colorless to light yellow liquid
  • PreparationTo an ice-cooled flask containing 116 gm (1.0 mole) of n-caproic acid is added 21.0-23.10 gm (0.5-0.55 mole) of ketene at a rate of 0.45 mole/hr. The reaction mixture is fractionally distilled at atmospheric pressure to afford a forecut of acetone, acetic acid, and acetic anhydride. The oil bath is raised to 220°C over a 1-hr period, kept there for 3 hr to ensure complete removal of acetic acid, and then cooled. The distillation is continued under reduced pressure to afford 86-95 gm (80-87%), b.p. 109- 112°C (3 mm Hg) and b.p. 118-121°C (6 mm Hg).
    Preparation of n-Caproic Anhydride
HEXANOIC ANHYDRIDE Preparation Products And Raw materials
HEXANOIC ANHYDRIDE(2051-49-2)Related Product Information
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