The Assayer's Guide; Or, Practical Directions to Assayers, Miners and Smelters, for the Tests and Assays, by Heat and by Wet Processes, of the Ores of All the Principal Metals, of Gold and Silver Coins and Alloys, and of Coal, &c: By Oscar M. Lieber ... |
From inside the book
Results 1-5 of 14
Page 9
... Flasks illustrated and described Titration of the silver solution and apparatus used Calculation Preparation of the normal solutions Gay - Lussac's tables for determining the fineness of silver alloys Table for decimal salt solution ...
... Flasks illustrated and described Titration of the silver solution and apparatus used Calculation Preparation of the normal solutions Gay - Lussac's tables for determining the fineness of silver alloys Table for decimal salt solution ...
Page 82
... flask , together with 6 to 7 cubic centimeters of nitric acid free from chlorine , and dissolved either on a water or sand bath . The flasks in which the sam- ples are dissolved are from 10 to 15 centi- meters high , and 5 to 5 ...
... flask , together with 6 to 7 cubic centimeters of nitric acid free from chlorine , and dissolved either on a water or sand bath . The flasks in which the sam- ples are dissolved are from 10 to 15 centi- meters high , and 5 to 5 ...
Page 83
... flask by means of a small bellows with curved extremity , and the contents of the flask are treat- ed with the normal solution . But , as the influence of the temperature upon the volume of the normal solution of common salt must be ...
... flask by means of a small bellows with curved extremity , and the contents of the flask are treat- ed with the normal solution . But , as the influence of the temperature upon the volume of the normal solution of common salt must be ...
Page 85
... flask , care being taken that the pipette does not rest on the neck of the flask . The sliding car- riage is then pushed back , the flask is closed . with its ground - glass stopper , and its con- tents are cleared by shaking , which is ...
... flask , care being taken that the pipette does not rest on the neck of the flask . The sliding car- riage is then pushed back , the flask is closed . with its ground - glass stopper , and its con- tents are cleared by shaking , which is ...
Page 86
... flask , Fig . F , whereby the point of the pipette should be placed against the neck of the flask containing the silver FIG . F. solution . If turbidity is produced , the silver solution is agitated until it is again clear , and 1 cubic ...
... flask , Fig . F , whereby the point of the pipette should be placed against the neck of the flask containing the silver FIG . F. solution . If turbidity is produced , the silver solution is agitated until it is again clear , and 1 cubic ...
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Common terms and phrases
added alkalies alloy ammonium amount of silver antimony argol arsenic ascertain assay assay-sample assayer black flux boiling borax carbon cent charcoal charge chloride cible clay coal common salt containing cool copper crucible cubic centimeters cupelled cupric oxide cyanide decanted decomposed diluted dissolved dried dryness earthy evaporate filter flask formed furnace galena glass gold grains grammes heat Hessian crucible hydrochloric acid ignited inches iron wire latter lead buttons lead oxide lime litharge mass melting mercury metallic lead method of assaying millimeters minutes mixed mixture muffle muriatic acid nitric acid particles per-centage piece placed Plate porcelain portion potash potassium potassium cyanide poured powdered precipitated present produced pulverized pyrites quantity quartz quicksilver reducing agents removed residue result roasted saltpetre sample scorifiers silica slag soda solu specific gravity sulphate of lead sulphides sulphuretted hydrogen sulphuric acid tained temperature tion tube washed weight whereby zinc
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