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Purification of Laboratory Chemicals, 8th Edition by W.L.F. Armarego

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Camphor (1R-bornan-2-one, 1,7,7-trimethyl-2-oxabicyclo[2.2.1]heptan-2-one) [R-(+)- 464-49-3, S-(-)-464-48-2, RS-(±)- 76-22-2] C10H16O, M 136.2, m 178.8°, 179.97°(open capillary), b 204°/atm, [α]54635 (+) and (-) 59.6 (in EtOH), [α]D20 (+) and (-) 44.3 (c 10, EtOH), [α]579179 (+) and (-) 70.85 (melt). Recrystallise it from EtOH, 50% EtOH/water, MeOH, or petroleum ether or from glacial acetic acid by addition of water. It can be sublimed (50°/14mm) and also fractionally crystallised from its own melt. It is steam volatile. It should be stored in tight containers as it is appreciably volatile at room temperature. The solubility is 0.1% (H2O), 100% (EtOH), 173% (Et2O) and 300% (CHCl3). The R-oxime [2792-42-9] C10H17NO, M 167.2, has m 119° (from ...

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