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HEPTANOIC ANHYDRIDE

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HEPTANOIC ANHYDRIDE Basic information

Product Name:
HEPTANOIC ANHYDRIDE
CAS:
626-27-7
MF:
C14H26O3
MW:
242.35
EINECS:
210-940-5
Mol File:
626-27-7.mol
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HEPTANOIC ANHYDRIDE Chemical Properties

Melting point:
-12 °C
Boiling point:
278-282 °C
Density 
0.917
refractive index 
1.432-1.434
Flash point:
110 °C
form 
Liquid
color 
Clear light yellow
CAS DataBase Reference
626-27-7(CAS DataBase Reference)
EPA Substance Registry System
Heptanoic acid, anhydride (626-27-7)
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Safety Information

Hazard Codes 
C
Risk Statements 
34
Safety Statements 
45-36/37/39-26-28
RIDADR 
1760
HazardClass 
8
PackingGroup 
III
HS Code 
29159000

MSDS

  • Language:EnglishProvider:ACROS
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HEPTANOIC ANHYDRIDE Usage And Synthesis

Chemical Properties

clear light yellow liquid

Preparation

To a flask containing 15.8 gm (0.2 mole) of dry pyridine and 25 ml of dry benzene is rapidly added with stirring 14.8 gm (0.1 mole) of heptanoyl chloride. The reaction is only slightly exothermic and then 13.0 gm (0.1 mole) of heptanoic acid is added dropwise (5 min) causing the temperature to rise to 60-65°C. After stirring for 10 min, the solid (pyridinium hydrochloride) is quickly filtered, washed twice with 25 ml portions of dry benzene, the benzene washings concentrated under reduced pressure, and the residue distilled to afford 19-20 gm (78-83%), b.p. 155-162°C (12 mm Hg), or 170-173°C (15 min).
Preparation of Heptanoic Anhydride

HEPTANOIC ANHYDRIDE Preparation Products And Raw materials

Raw materials

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