| George Fownes - 1869 - 870 pages
...dioxide. It mny be conveniently prepared by heating crystallized salicylic acid strongly and quickly in a glass retort, either alone or mixed with pounded glass or quicklime. Phenol then passes over into the receiver, and crystallizes almost to the last drop. 3. Phenol is produced in the dry... | |
| George Fownes - 1869 - 882 pages
...dioxide. It may be conveniently prepared by heating crystallized salicylic acid strongly and quickly in a glass retort, either alone or mixed with pounded glass or quicklime. Phenol then passes over into the receiver, and crystallizes almost to the lust drop. 3. Phenol is produced in the dry... | |
| Henry Watts - 1871 - 836 pages
...distillations involved in this process may be considerably abridged by introducing into the portions which boil between 186° and 188°, a few crystals of pure phenol...crystallises at ordinary temperatures in long colourless needles apparently belonging to the trimetric system, and haviug a specific gravity of 1Ю65 at 18J... | |
| George Fownes - 1878 - 1062 pages
...(ortho-oxybenzoic) acid. It may be conveniently prepared by heating crystallized salicylic acid strongly and quickly in a glass retort, either alone or mixed with pounded glass or quicklime. Phenol then passes over into the receiver, and crystallizes .•hiiii-.i to the last drop. 3. Phenol is produced in the... | |
| Ohio State Pharmaceutical Association - 1891 - 178 pages
...standard. Allen (I) says pure phenol may be obtained by heating strongly and rapidly crys'al salicylic acid in a glass retort either alone or mixed with pounded glass or quicklime. Also (II) that Calvert's No. 1 carbolic acid may be regarded as CP and absolutely free from homologous... | |
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