A Text-book of Assaying: For the Use of Those Connected with Mines |
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Page ix
... taken for an assay Exercises . · CHAPTER II . METHODS OF ASSAYING . - DRY GRAVIMETRIC METHODS . Methods of assaying Gravimetric methods Mechanical separations Dry assays ( a ) Fluxes ( b ) Reducing agents ( c ) Oxidising agents ( 1 ) ...
... taken for an assay Exercises . · CHAPTER II . METHODS OF ASSAYING . - DRY GRAVIMETRIC METHODS . Methods of assaying Gravimetric methods Mechanical separations Dry assays ( a ) Fluxes ( b ) Reducing agents ( c ) Oxidising agents ( 1 ) ...
Page 1
... taken to draw off uniformly a sufficient volume of the gas during a prolonged period ; any portion of this larger volume may then be taken for the analytical operation : A In the case of liquids , which mix more or CHAPTER I ...
... taken to draw off uniformly a sufficient volume of the gas during a prolonged period ; any portion of this larger volume may then be taken for the analytical operation : A In the case of liquids , which mix more or CHAPTER I ...
Page 2
... taken in portions of equal weight and at frequent and regular intervals , will represent the mass from which it was taken . Taking a heap of ore , A , and selecting one out of every twenty spade- , bag- , barrow- , or wagon - fuls ...
... taken in portions of equal weight and at frequent and regular intervals , will represent the mass from which it was taken . Taking a heap of ore , A , and selecting one out of every twenty spade- , bag- , barrow- , or wagon - fuls ...
Page 3
... taken at hap - hazard ; the sample must be reduced systematically to the quantity required . 1. If the sample is a liquid : it is sufficient to shake the bottle , and take out a measured or weighed quantity for the assay . 2. If a ...
... taken at hap - hazard ; the sample must be reduced systematically to the quantity required . 1. If the sample is a liquid : it is sufficient to shake the bottle , and take out a measured or weighed quantity for the assay . 2. If a ...
Page 5
... taken . All dry solids at ordinary temperatures absorb moisture from the air . The amount varies with the nature of the material and with the quantity of surface exposed . Light bulky powders absorb more than heavy ones , because of the ...
... taken . All dry solids at ordinary temperatures absorb moisture from the air . The amount varies with the nature of the material and with the quantity of surface exposed . Light bulky powders absorb more than heavy ones , because of the ...
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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