A Text-book of Assaying: For the Use of Those Connected with Mines |
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Page 8
... mixtures of two or more liquids , the percentages may be given by volume or by weight ; as so many c.c. in 100 c.c. , or as so many grams in 100 grams , or even as so many grams in IOO C.C. In such cases it must be distinctly shown ...
... mixtures of two or more liquids , the percentages may be given by volume or by weight ; as so many c.c. in 100 c.c. , or as so many grams in 100 grams , or even as so many grams in IOO C.C. In such cases it must be distinctly shown ...
Page 18
... mixture of many substances be fused and allowed to solidify in a crucible , there will be found some or all of the fol- --- Fusible chlorides , etc. lowing . At the bottom of the crucible --Slag -Regulus -Speise --Metal FIG . 4 . ( fig ...
... mixture of many substances be fused and allowed to solidify in a crucible , there will be found some or all of the fol- --- Fusible chlorides , etc. lowing . At the bottom of the crucible --Slag -Regulus -Speise --Metal FIG . 4 . ( fig ...
Page 20
... mixture of oxides of lead and copper . With silicates , also , it forms very fusible double silicates ; but in the absence of silicates and borates it has no action upon lime or magnesia . Whether the lead be added as litharge or as red ...
... mixture of oxides of lead and copper . With silicates , also , it forms very fusible double silicates ; but in the absence of silicates and borates it has no action upon lime or magnesia . Whether the lead be added as litharge or as red ...
Page 21
... mixture of carbonate of potash and charcoal . REDUCING AGENTS . - The distinction between reducing agents and fluxes ( too often ignored ) is an important one . Fluxes yield slags ; reducing agents give buttons of regulus or of metal ...
... mixture of carbonate of potash and charcoal . REDUCING AGENTS . - The distinction between reducing agents and fluxes ( too often ignored ) is an important one . Fluxes yield slags ; reducing agents give buttons of regulus or of metal ...
Page 23
... mixture is then worked up by rubbing between the hands . The bone ash is suf- ficiently wet when its cohesion is such that it can be pressed into a lump , and yet be easily crumbled into powder . Cupel moulds should be purchased . They ...
... mixture is then worked up by rubbing between the hands . The bone ash is suf- ficiently wet when its cohesion is such that it can be pressed into a lump , and yet be easily crumbled into powder . Cupel moulds should be purchased . They ...
Other editions - View all
A Text Book of Assaying: For the Use of Those Connected with Mines Cornelius Beringer,John Jacob Beringer No preview available - 2016 |
A Text-Book of Assaying for the Use of Those Connected with Mines Cornelius Beringer,John Jacob Beringer No preview available - 2015 |
TEXT-BK OF ASSAYING FOR THE US Cornelius Beringer,John Jacob 1857-1915 Beringer No preview available - 2016 |
Common terms and phrases
20 grams acetic acid acid solution added alkaline alloy alumina ammonia ammonium antimony aqua regia arsenic baric chloride beaker bismuth boiling borax bulk c.c. of dilute c.c. of hydrochloric c.c. of nitric c.c. of water calculated carbonate cent chromate colour containing copper crucible cupel determined dilute ammonia dilute hydrochloric acid dioxide dish dissolved dried Effect of Varying excess ferric chloride ferric oxide ferrous filter filtrate flask fused fusion gives gold gram of copper grams grams of lead GRAVIMETRIC heat hydrate hydrochloric acid hydrogen ignited insoluble iodide iodine iron lime liquid litre magnesia manganese metal method milligrams mineral mixed multiplied nickel nitre nitric acid oxidising oxygen percentage permanganate phosphate phosphorus platinum potash potassium powdered precipitate present quantity residue salts sample separated silica silver slag soda sodic sodium acetate soluble standard solution substance sulphate sulphide sulphuric acid temperature titration tube uranium VOLUMETRIC washed weighed zinc
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