 | John Ayrton Paris - Pharmaceutical chemistry - 1825 - 644 pages
...much contaminated with tar ; is of a deep brown ; and has a specific gravity of 1•025. This crude acid is rectified by a second distillation in a copper...100. It has now become a transparent brown vinegar. By redistillation, saturation with quick-lime, evaporation of the liquid acetate to dryness, and gentle... | |
 | John Ayrton Paris - 1825 - 1036 pages
...acid perfectly devoid of any foreign flavour. The crude pyroligneous acid, as it is first received, is rectified by a second distillation in a copper still, in the body of which about 80 gallons of viscid tarry matter are left from every 100. It has now become a transparent brown vinegar,... | |
 | Andrew Ure - Chemistry - 1827 - 904 pages
...given is the experience of an eminent manufacturing chemist at Glasgow. The crude pyrolignous acid U rectified by a second distillation in a copper still, in the body of which about 20 gallons of viscid larry matter are left from every 100. It has now become a transparent brown vinegar, having a considerable... | |
 | Samuel Frederick Gray - Chemistry, Technical - 1828 - 1118 pages
...residuary charcoal is found to weigh no more than one- fifth of the wood employed. The raw pyroligneous acid is rectified by a second distillation in a copper still, in the body of which about twenty gallons of viscid tarry matter are left from every hundred of vinegar, and there passes over... | |
 | Thomas Curtis - Aeronautics - 1829 - 878 pages
...now given is the experience of an eminent raanufacturng chemist at Glasgow. The crude pyrolignous add is rectified by a second distillation in a copper still, in the body of which about twenty gallons of viscid tarry matter are left from every 100. It has now become a transparent brown... | |
 | Samuel Frederick Gray - Chemistry, Technical - 1830 - 480 pages
...residuary charcoal is found to weigh no more than one-fifth of the wood employed. The raw pyroligneous acid is rectified by a second distillation in a copper still, in the body of which about twenty gallons of viscid tarry matter are left from every hundred of vinegar, and there passes over... | |
 | Andrew Ure - Chemistry - 1831 - 980 pages
...result now given is the experience of an eminent manufacturing chemist at Glasgow. The crude pyrolignous acid is rectified by a second distillation in a copper...a transparent brown vinegar, having a considerable empyrcumatic smell, and a sp. gr. of 1.013. Its acid powers are superior to those of the best household... | |
 | Society for the Diffusion of Useful Knowledge (Great Britain) - Botany, Economic - 1833 - 476 pages
...distillation, when from every hundred gallons twenty of a viscid, tarry matter are collected. The fluid is now become a transparent brown vinegar, having a considerable empyreumatic smell, and a specific gravity of 1 '013. Its acid powers are superior to those of the best household vinegar in... | |
 | Luke Hebert - Industrial arts - 1835 - 816 pages
...one-half of the ponderable matter of the wood is dissipated in mcondensible gases. The crude pyroligneous acid is rectified by a second distillation in a copper...vinegar, having a considerable empyreumatic smell, and a specific gravity of 1.013. Its acid powers are superior to those of the best household vinegar in the... | |
 | Luke Hebert - Industrial arts - 1836 - 814 pages
...one-half of the ponderable matter of the wood is dissipated in mcondensible gases. The crude pyroligneous acid is rectified by a second distillation in a copper...of viscid tarry matter are left from every 100. It h:is now become a transparent brown vinegar, having a considerable empyreumatic smell, and a specific... | |
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The crude pyrolignous acid is rectified by a second distillation in a copper still, in the body of which about 20 gallons of viscid tarry matter are left from every 100. It has now become a transparent brown vinegar, having a considerable empyrcumatic... 
