benzilic acid

CAS No. 76-93-7

Formula: C14H12O3
Basic Info

Benzilic acid is a white crystalline aromatic acid soluble in many primary alcohols. It can be prepared by heating mixture of benzil, alcohol and potassium hydroxide. The other preparation way is through benzaldehyde, which dimerizates to benzil and it is further transformed by benzilic acid rearrangement to benzilic acid. This reaction was also the first example of benzilic acid rearrangement performed by Liebig in 1838.

Formula
C14H12O3
Molecular Weight
228.243
Exact Mass
228.079
LogP
2.0071
PSA
57.53
Synonyms

Benzilic acid

Benzylic acid

Diphenylhydroxyacetic acid

Benzeneacetic acid, α-hydroxy-α-phenyl-

Glycolic acid,diphenyl

hydroxy(diphenyl)acetic acid

2-hydroxy-2,2-diphenylethanoic acid

2-hydroxy-2,2-diphenylacetic acid

Diphenylglycolic acid

2,2-diphenyl-2-hydroxyethanoic acid

2,2-Diphenyl-2-hydroxyacetic acid

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Properties
Appearance & Physical State
white powder.
Density
1.279 g/cm3
Boiling Point
180ºC (13 mmHg)
Melting Point
148-152ºC
Flash Point
180°C/22mm
Water Solubility
1.41 g/L (25 ºC)
Stability
Stable. Incompatible with strong oxidizing agents. Combustible.
Storage Condition
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Safety Info
RTECS
DD2064000
Safety Statements
S26-S36/37/39
WGK Germany
3
Risk Statements
R22
HS Code
29181980
Hazard Codes
Spectrum
NMR Spectrum 1H NMR : 90 MHz in DMSO-d6
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IR Spectrum IR : nujol mull
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Mass Spectrum Mass spectrum (electron ionization)
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Raman Spectrum Raman : 4880 A,200 M,powder
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