The Assayer's Manual: An Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products |
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Page v
... Mass ; Sifting 27 Washing ; Marriotte's Bottle . 28 Weighing and Measuring · 29 Weighing A Pulverulent Sample ; Alloys 30 Fluxes ; Weighing the Button ; Measuring of Fluxes ; Manner of Charging the Sample 31 II . CHEMICAL OPERATIONS ...
... Mass ; Sifting 27 Washing ; Marriotte's Bottle . 28 Weighing and Measuring · 29 Weighing A Pulverulent Sample ; Alloys 30 Fluxes ; Weighing the Button ; Measuring of Fluxes ; Manner of Charging the Sample 31 II . CHEMICAL OPERATIONS ...
Page 22
... mass in order to de- stroy organic matter . The mass is then comminuted by stamping or trituration , and passing it through a sieve having meshes the size of a grain of sand ( less than 1 millimeter , 0.039 inch ) . The iron in the coarse ...
... mass in order to de- stroy organic matter . The mass is then comminuted by stamping or trituration , and passing it through a sieve having meshes the size of a grain of sand ( less than 1 millimeter , 0.039 inch ) . The iron in the coarse ...
Page 23
... mass is broken off , comminuted , and then mixed and reduced . In this operation , however , the iron must not decompose the fused material ( a possible separation of lead may occur , for example , from lead matt and lead speiss ) . B ...
... mass is broken off , comminuted , and then mixed and reduced . In this operation , however , the iron must not decompose the fused material ( a possible separation of lead may occur , for example , from lead matt and lead speiss ) . B ...
Page 24
... mass , while in fusion , is stirred with a rod of iron or clay , and a sample is scooped up with a small ladle from the bottom of the crucible . It is then poured in a thin stream into a copper vessel filled with warm water , to 1 ...
... mass , while in fusion , is stirred with a rod of iron or clay , and a sample is scooped up with a small ladle from the bottom of the crucible . It is then poured in a thin stream into a copper vessel filled with warm water , to 1 ...
Page 25
... and , with organic substances , no carbonization shall take place ( this may be guarded 1 B. u . h . Ztg . , 1869 , p . 278 ( Brixlegg ) . against by holding a piece of paper in the mass PREPARATION OF THE SAMPLE . 25.
... and , with organic substances , no carbonization shall take place ( this may be guarded 1 B. u . h . Ztg . , 1869 , p . 278 ( Brixlegg ) . against by holding a piece of paper in the mass PREPARATION OF THE SAMPLE . 25.
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Common terms and phrases
2.5 grammes 20 grammes added alloy ammonia ammonium antimony aqua regia argol arsenic assay sample beaker-glass bismuth black copper black flux boiled borax burette cent charcoal charge chloride coal cobalt color common salt containing copper covering of common crucible crucible Fig cubic centimeters cubic inches cupelled decanted decomposed determined diluted Dingler dried evaporated to dryness ferric oxide ferrous filtered filtrate flask fluid foreign metals Fresenius furnace fused fusion glass gold gramme 15.43 grains gramme 7.71 grains grammes 154.32 grains grammes 77.16 grains granulated lead heated hydrate hydrochloric acid ignited iron lead button liquid litharge mercury metallic sulphides meters method millimeters mixed mixture muffle muffle-furnace nickel nitric acid percentage placed platinum porcelain potassium carbonate potassium cyanide poured powdered precipitated pyrites refractory residue scorifier slag smelting sodium carbonate sodium sulphide substances sulphate sulphuretted hydrogen sulphuric acid temperature titrated tube u. h. Ztg volumetric washed weighed zinc Ztschr
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