HEPTANOIC ANHYDRIDE Chemical Properties

Melting point:

-12 °C

Boiling point:

278-282 °C

Density 

0.917

vapor pressure 

0.22Pa at 25℃

refractive index 

1.432-1.434

Flash point:

110 °C

storage temp. 

Inert atmosphere,Room Temperature

form 

Liquid

color 

Clear light yellow

LogP

5.58 at 25℃

CAS DataBase Reference

626-27-7(CAS DataBase Reference)

EPA Substance Registry System

Heptanoic acid, anhydride (626-27-7)

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:English Provider:ACROS

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).

Flammability and Explosibility

Non flammable

HEPTANOIC ANHYDRIDE(626-27-7)Related Product Information

• NONANOIC ANHYDRIDE
• N-CAPRYLIC ANHYDRIDE
• MYRISTIC ANHYDRIDE
• RUBRATOXIN B
• HEPTANOIC ANHYDRIDE
• STEARIC ANHYDRIDE
• BEHENIC ANHYDRIDE
• STYRENE MALEIC ANHYDRIDE COPOLYMER
• Palmitic anhydride
• Poly(methyl vinyl ether-alt-maleic anhydride)
• DECANOIC ANHYDRIDE
• LAURIC ANHYDRIDE
• OLEIC ANHYDRIDE
• LINOLEIC ANHYDRIDE
• CYCLOHEXYLPROPIONIC ANHYDRIDE
• ELAIDIC ANHYDRIDE
• PERFLUOROOCTANOIC ANHYDRIDE
• ARACHIDIC ANHYDRIDE