Manual of Assaying Gold, Silver, Copper and Lead OresJansen, McClurg & Company, 1883 - 318 стор. |
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Manual of Assaying Gold, Silver, Copper, and Lead Ores Walter Lee Brown Попередній перегляд недоступний - 2009 |
Загальні терміни та фрази
amalgam Analysis antimony argol arsenic ASSAY TON EQUIVALENTS assayer assays of gold AVOIRDUPOIS Battersea beaker Bi-carbonate of soda bismuth Black flux substitute Blow-pipe borax glass bottle bottom bullion capsule Carbonate of potash Cerussite charcoal charge chloride color containing cool cupel cyanide of potash dish employed filter free gold funnel furnace fused galena gangue gold and silver grammes granulated lead gray copper grms heat inches iron latter lead button litharge matrass mercury metallic scales method milligrammes minerals minutes mixed mortar mould muffle nitric acid oxide oxygen phur piece platinum porcelain potash pounds pulverized pyrites quantity re-agents roasting Salt cover sample sand scorification process scorifier sieve siftings silica silver beads slag solution sulphate sulphide sulphide of copper sulphurets sulphuric acid surface telluride tellurium Tetrahedrite tion tongs Troy Grains Troy Ounces Value in Grammes Value in Troy wash weight wire zinc
Популярні уривки
Сторінка 272 - Kustel, G. : Roasting of Gold and Silver Ores, and the Extraction of their Respective Metals without Quicksilver. New Edition (2d.) San Francisco, 1880.
Сторінка 271 - CRAIG (BF). Weights and Measures. An Account of the Decimal System, with Tables of Conversion for Commercial and Scientific Uses. Square 32mo, limp cloth 50 CROCKER (FB).
Сторінка 270 - ELEMENTS OF GEOLOGY. A Text-book for Colleges and for the General Reader. By JOSEPH LE CONTE, LL.
Сторінка 13 - A comprehensive definition of assaying is to call it, that branch of exact science which enables us to find out of what a substance is composed and the proportions, by means of dry reagents and heat. On the other hand, analysis is that branch which effects the the same results mainly by the use of wet reagents, with or without the aid of heat.
Сторінка 269 - Cairns, FA, a manual of quantitative chemical analysis. For the use of students. New York.
Сторінка 178 - L. Stone has published the following as a universal flux for basic silver ores (ie, those in which the gangue is lime, baryta, etc. — for instance, the three spars, calcspar, heavy-spar, and fluor-spar) : Bi-carbonate of soda ........... 9 parts.