2-ACETYLCYCLOPENTANONE Chemical Properties

Melting point:

60-70℃

Boiling point:

72-75 °C/8 mmHg (lit.)

Density 

1.043 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.489(lit.)

Flash point:

163 °F

storage temp. 

Store at +2°C to +8°C.

pka

10.87±0.20(Predicted)

form 

clear liquid

color 

Colorless to Light yellow to Light orange

Specific Gravity

1.043

BRN 

1857601

LogP

-0.332 (est)

CAS DataBase Reference

1670-46-8(CAS DataBase Reference)

EPA Substance Registry System

Cyclopentanone, 2-acetyl- (1670-46-8)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22

Safety Statements 

36

WGK Germany 

3

RTECS 

GY4728000

F 

8-10-23

HS Code 

29142900

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2-ACETYLCYCLOPENTANONE Usage And Synthesis

Chemical Properties

clear light yellow to brown liquid

Purification Methods

Dissolve the ketone in pet ether (b 30-60o), wash it with saturated aqueous NaHCO3, dry over Drierite and fractionate in a vacuum. It gives a violet colour with ethanolic FeCl3 and is only slowly hydrolysed by 10% aqueous KOH but rapidly on boiling to yield 6-oxoheptanoic acid. [Manyik et al. J Am Chem Soc 75 5030 1953, Acheson J Chem Soc 4232 1956, UV: Martin & Frenelius J Am Chem Soc 81 2342 1959.] It gives a gray green Cu salt from Et2O/pentane, m 237-238o [House & Wasson J Am Chem Soc 79 1488 1957].

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