International Library of Technology: A Series of Textbooks for Persons Engaged in the Engineering Professions and Trades, Or for Those who Desire Information Concerning Them, Volume 39,Parte 2International Textbook Company, 1908 |
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Página 16
... cent . of carbon and become a good reducing flame . The ordinary benzene used for cleaning purposes is simply a gasolene and is too volatile for this work . Candles are sometimes used for blowpiping when no better flame is obtainable ...
... cent . of carbon and become a good reducing flame . The ordinary benzene used for cleaning purposes is simply a gasolene and is too volatile for this work . Candles are sometimes used for blowpiping when no better flame is obtainable ...
Página 58
... cent . ) may be detected . 130. Interfering Elements . - Chromium : The soda bead in O. F. will be bright yellowish - green instead of bluish- green when cold . Silicon Dissolve in borax bead and then fuse with soda . 131. Wet Test ...
... cent . ) may be detected . 130. Interfering Elements . - Chromium : The soda bead in O. F. will be bright yellowish - green instead of bluish- green when cold . Silicon Dissolve in borax bead and then fuse with soda . 131. Wet Test ...
Página 69
... cent . of titanium dioxide , TiO ,. First fuse with sodium carbonate and then dissolve in sulphuric acid , heating until the solu- tion becomes clear . Dilute with cold water , add some hydrogen peroxide , and if titanium is present the ...
... cent . of titanium dioxide , TiO ,. First fuse with sodium carbonate and then dissolve in sulphuric acid , heating until the solu- tion becomes clear . Dilute with cold water , add some hydrogen peroxide , and if titanium is present the ...
Página 1
... cent . ; oxygen , 47.1 per cent . It occurs crystalline , also massive and granular , and crystallizes in the hexag- onal system in acute pyramids , Fig . 1 ( a ) , or in truncated barrel- shaped prisms ( b ) . It usually con- tains ...
... cent . ; oxygen , 47.1 per cent . It occurs crystalline , also massive and granular , and crystallizes in the hexag- onal system in acute pyramids , Fig . 1 ( a ) , or in truncated barrel- shaped prisms ( b ) . It usually con- tains ...
Página 2
... cent .; water , 14.9 per cent . It occurs in thin , flat , orthorhombic prisms , foliated masses , or thin scales . Color , gray , white , pink , yellow , and brown ; streak , white ; transparent to translucent ; luster , pearly and ...
... cent .; water , 14.9 per cent . It occurs in thin , flat , orthorhombic prisms , foliated masses , or thin scales . Color , gray , white , pink , yellow , and brown ; streak , white ; transparent to translucent ; luster , pearly and ...
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International Library of Technology: A Series of Textbooks for ..., Volume 76 Visualização completa - 1906 |
International Library of Technology: A Series of Textbooks for ..., Volume 21 Visualização completa - 1902 |
International Library of Technology: A Series of Textbooks for ..., Volume 96 Visualização completa - 1908 |
Termos e frases comuns
alkaline aluminum ammonia ammonium angles antimony Archean arsenic assay axis basal bead becomes beds bismuth blowpipe blue borax brittle brown calcium Carboniferous cent charcoal chloride cleavage closed tube coat cobalt cold coloring the flame colorless contains copper crystalline crystals cupel deposits depth Devonian epoch faces feet thick feldspar fissures formation forms fossil fracture gives globule gold granular gray green heated hexagonal system hydrochloric acid hydroxide insoluble iron isometric system lead limestone lithosphere luster magnesium manganese masses massive material matrass metallic mineral moistened monoclinic nickel nitric acid occurs usually octahedron odor orthorhombic oxide Pale plane potassium powdered precipitate prisms quartz reaction rhombohedral River rocks salt sandstone selenium shales shown in Fig silicate Silurian silver soda sodium soluble solution sometimes strata streak sublimate substance sulphate sulphide sulphuric acid surface tellurium tenacity Tests for Identification.-B. B. tetragonal tion translucent vein vitreous volatile yellow zinc