 The heat produced by equal quantities, by weight, of pit-coal, woodcharcoal, and wood itself, are nearly in proportion of 5, 4, and 3. The reason why both these kinds of charcoal are preferred, on most occasions, in experimental chemistry, to the crude...  Practical and Descriptive Essays on the Economy of Fuel, and Management of Heat - Sivu 64tekijä(t) Robertson Buchanan - 1810 - 253 sivuaKoko teos - Tietoja tästä kirjasta
 | William Nicholson - 1819 - 408 sivua
...charcoal are preferred, on most occasions, in experimental chemistry, to the crude wood, or fossil coal, from which they are produced, is, that the crude fuels...they remain in the fuel, make it unfit (or less fit) formany purposes in chemistry. For, besides obstructing the vents with sooty matter, they require much... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1831 - 650 sivua
...charcoal are preferred, on most occasions, in experimental chemistry, to the crude wood, or fossil coal, from which they are produced, is, that the crude fuels...volatile parts, while they remain in the fuel, make it unlit (or less fit) for ninny purposes in chemistry. For, besides obstructing; the vents with sooty... | |
 | Francis Lieber, Edward Wigglesworth - 1835 - 630 sivua
...charcoal are preferred, on most occasions, hi experimental chemistry, to the crude wood, or fossil coal, from which they are produced, is, that the crude fuels are deprived, by charring, of a considernhle quantity of water, and some other volatile principles, which are evaporated during the... | |
 | 1844 - 636 sivua
...charcoal arc preferred, on most occasions, hi experimental chemistry, to the crude Wood, or foetal coal, .from which they are produced, is, that the crude...charring, of a considerable quantity of water, and gome other volatile principles, which are evaporated during the process of charring, in the form of... | |
 | Popular encyclopedia - 1879 - 530 sivua
...these kinds of charcoal are preferred on most occasions in experimental chemistry to the wood or coal from which they are produced, is that the crude fuels...evaporated during the process of charring, in the form of Booty smoke or flame. These volatile parts, while they remain in the fuel, make it unfit (or less fit)... | |
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