 | Leopold Gmelin - 1848 - 580 páginas
...scarlet tables belonging to the square prismatic system, but when sublimed at a higher temperature, iu sulphur-yellow rhombic tables of the oblique prismatic...by sublimation retain their colour when cooled; but ou the slightest rubbing or stirring with a pointed instrument, the part which is touched turns scarlet,... | |
 | Henry Watts - 1864 - 1002 páginas
...temperature, in sulphur-yellow rhombic tables of the monoclinic system. The red crystals turn yellow when heated, and resume their red tint on cooling. The...group of crystals as far as they adhere together. Carbonate of calcium, Ca''COa, in the form of calcspar, whose specific gravity =2-721, belongs to the... | |
 | Henry Watts - 1870 - 1000 páginas
...temperature, in sulphur-yellow rhombic tables of the monoclinic system. The red crystals turn yellow when heated, and resume their red tint on cooling. The...group of crystals as far as they adhere together. Carbonate of calcium, Ca''C03, in the form of calcspar, whose specific gravity =2-721, belongs to the... | |
 | H. Charlton Bastian - 1872 - 824 páginas
...temperature in sulphur-yellow, rhombic tables of the monoclinic system. The red crystals turn yellow when heated, and resume their red tint on cooling. The...group of crystals as far as they adhere together.' (Vol. ii. p. 332.) Then again : — ' Nitrate of potassium usually crystallizes in the form of arragonite... | |
 | H. Charlton Bastian - 1872 - 862 páginas
...temperature in sulphur-yellow, rhombic tables of the monoclinic system. The red crystals turn yellow when heated, and resume their red tint on cooling. The...group of crystals as far as they adhere together.' (Vol. ii. p. 332.) Then again : — ' Nitrate of potassium usually crystallizes in the form of arragonite... | |
 | H. Charlton Bastian - 1872 - 822 páginas
...temperature in sulphur-yellow, rhombic tables of the monoclinic system. The red crystals turn yellow when heated, and resume their red tint on cooling. The...obtained by sublimation retain their colour when cooled j but, on the slightest rubbing or stirring with a pointed instrument, the part which is touched turns... | |
 | H. Mortimer Franklyn - 1881 - 830 páginas
...the crystals are red, but on heating they turn yellow, and on cooling again assume the red tint. " The yellow crystals obtained by sublimation retain their colour when cooled ; but when touched with a pointed instrument the part touched turns scarlet, and this change of colour extends... | |
 | Henry Watts - 1882 - 1046 páginas
...monoclinic system. The red crystals turn yellow when heated, and resume their red tint on cooling. The yeBow crystals obtained by sublimation retain their colour...extends, with a slight motion, as if the mass were alrre, throughout the whole group of crystals as far as they adhere together. Carbonate of calcium,... | |
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Mercuric iodide separates from solution, and likewise sublimes at a very gentle heat, in scarlet tables belonging to the dimetric system; but when sublimed at a higher temperature in sulphur-yellow, rhombic tables of the monoclinic system. The red crystals... 