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A Textbook on Metallurgy of Gold, Silver, Copper, Lead, and Zinc (Classic ...
International Correspondence Schools
Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018
acid added amount arsenic assay atoms balance bead becomes bismuth blowpipe blue boiler boiling borax button called carbon characteristic charcoal charge chemical chloride closed coal coat cold color colorless combination compounds contains cooling copper crucible crystal cupel determined dissolve distinguished elements engine faces flame flux formula furnace fuses given gives glass gold grams green hardness heat hydrogen inches iron known lead less luster metallic mineral molecular weight molecules muffle nature necessary nitrate nitric obtained occurs ordinary oxide oxygen placed potassium pounds powder pressure produced proportion pure quantity reaction reduced salt sample shown silica silver soda sodium soluble solution sometimes specific gravity steam streak substance sulphide sulphur sulphuric acid TABLE temperature tion tube usually varieties volatile volume weight yellow zinc
Σελίδα 90 - Measures of Length 10 millimeters (mm.) = 1 centimeter (cm.) 10 centimeters = 1 decimeter (dm.) 10 decimeters = 1 meter (m.) 10 meters = 1 dekameter (Dm.) 10 dekameters = 1 hektometer (Hm.) 10 hektometers = 1 kilometer (Km.) 10 kilometers = 1 myriameter (Mm.) Measures of Surface 100 sq.
Σελίδα 4 - The heat which is expended in changing a body from the solid to the liquid state, or from the liquid to the gaseous state, is called latent heat.
Σελίδα 18 - CALORIE is the amount of heat required to raise the temperature of one kilogram of water one degree centigrade.
Σελίδα 31 - To find the piston speed of an engine, multiply the stroke in inches by the number of revolutions per minute and divide the product by 6. EXAMPLE. — An engine with a 52-inch stroke runs at a speed of 66 revolutions per minute.
Σελίδα 55 - A^tSbSt(or 3AgtS+SbtSl) = sulphur 17. 7$, antimony 22.5$, silver 59.8$. BB on charcoal, fuses with spurting to a globule, gives off antimonous fumes, and coats the coal white; with soda on charcoal, in the OF, or by prolonged heating without fluxes in the RF, gives a globule of silver. In the closed tube, gives a reddish sublimate of antimonous sulphide; in the open tube, gives sulphurous fumes and a white sublimate of antimonous oxide. In some varieties arsenic is present, in which case it can be...
Σελίδα 29 - Properties. — Hydrogen is a colorless, odorless, and tasteless gas. It is the lightest matter known, being 14.43 times lighter than air and 11,000 times lighter than water. Its molecular weight is therefore smaller than that of any other known substance. Its refractive power on light is remarkable, being 6.614 times that of air. It is soluble to a very slight extent in water, 100 volumes of which dissolve but 1£ volumes of hydrogen.
Σελίδα 9 - ... the ratio of the ovendry weight of a sample to the weight of a volume of water equal to the volume of the sample at some specific moisture content, as green, air-dry, or ovendry.
Σελίδα 54 - C., yielding a vapor whose density is 198 instead of 99. This would indicate that the vitreous modification which is formed at high temperatures has the molecular formula AstOt, double that of the octahedral modification.
Σελίδα 44 - This includes, in the case of the multitubular boiler, the portions of the shell below the line of brickwork, the exposed heads of the shell, and the interior surface of the tubes. In the case of a water-tube boiler, the heating surface comprises the portion of the shell below the brickwork, the outer surface of the headers, and outer surface of tubes.