A Text-book of Assaying: For the Use of Those Connected with Mines |
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Page 35
... solution be added to a solution containing a weighed amount of iron , dissolved in sulphuric acid , the strong colour of the permanganate of potash will be removed until a certain quantity of it has been added . Repeating the experiment ...
... solution be added to a solution containing a weighed amount of iron , dissolved in sulphuric acid , the strong colour of the permanganate of potash will be removed until a certain quantity of it has been added . Repeating the experiment ...
Page 36
... solution . So that if in an unknown solution of iron , 50.5 c.c. of the permanganate solution were used up , he could state with confidence that it contained a little more than 0.5 gram of iron . With a larger experience the confidence ...
... solution . So that if in an unknown solution of iron , 50.5 c.c. of the permanganate solution were used up , he could state with confidence that it contained a little more than 0.5 gram of iron . With a larger experience the confidence ...
Page 37
... solution is next transferred to a dry " Winchester " bottle and labelled . The label may be rendered permanent by waxing it . Standard solutions should not be kept in a place exposed to direct sunlight . Oxidising and reducing solutions ...
... solution is next transferred to a dry " Winchester " bottle and labelled . The label may be rendered permanent by waxing it . Standard solutions should not be kept in a place exposed to direct sunlight . Oxidising and reducing solutions ...
Page 38
... solution ( standard 1.008 ) 60.4 c.c. were required , then 1.008 × 90.4 ÷ 2 = 30.44 . This is the percentage . If the standard is exactly 1 gram , and 1 gram of ore is always taken , these calculations become very simple . The " c.c. ...
... solution ( standard 1.008 ) 60.4 c.c. were required , then 1.008 × 90.4 ÷ 2 = 30.44 . This is the percentage . If the standard is exactly 1 gram , and 1 gram of ore is always taken , these calculations become very simple . The " c.c. ...
Page 42
... solution without spoiling the result ; in which case portions of the assay solution must be withdrawn from time to time and tested . This withdrawal of portions of the assay solution , if rashly done , must result in loss ; if , however ...
... solution without spoiling the result ; in which case portions of the assay solution must be withdrawn from time to time and tested . This withdrawal of portions of the assay solution , if rashly done , must result in loss ; if , however ...
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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