DL-CAMPHORIC ANHYDRIDE Property

Melting point:

222-225 °C

Boiling point:

269-271°C

Density 

1.137±0.06 g/cm3(Predicted)

Flash point:

269-271°C

storage temp. 

2-8°C

Sensitive 

Moisture Sensitive

BRN 

83114

CAS DataBase Reference

76-32-4(CAS DataBase Reference)

Safety

Hazard Codes 

Xn

Risk Statements 

22-36/37/38

Safety Statements 

26

WGK Germany 

3

F 

10-21

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

DL-CAMPHORIC ANHYDRIDE Chemical Properties,Usage,Production

Uses

1,8,8-Trimethyl-3-oxabicyclo[3.2.1]octane-2,4-dione could be useful for the syntehsis of aliphatic-aromatic copolyesters, and camphoric acid-?based acylhydrazone compounds.

Uses

(±)-Camphoric acid anhydride (1,8,8-Trimethyl-3-oxabicyclo[3.2.1]octane-2,4-dione) may be useful in the synthesis of aliphatic-aromatic copolyesters.

Purification Methods

Crystallise the anhydride from EtOH. If it contains too much of the acid (by IR), then reflux it in Ac2O, concentrate and collect the crystals, wash them with pet ether and dry them. [Bunton et al J Chem Soc 2918 1963, NMR: Baker & Davis Tetrahedron 24 1663 1968, Beilstein 18 H 400, 401.]