The Assayer's Manual. An Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products |
From inside the book
Results 1-5 of 35
Page viii
... Black Flux ( Potassium Carbonatę and Flour ) and Metallic Iron , in Clay Crucibles . Practice in different Countries 89 91 Upper Harz , Assay with Potassium Carbonate ; Charge . Galena containing large quantities of Earths ; Lead ...
... Black Flux ( Potassium Carbonatę and Flour ) and Metallic Iron , in Clay Crucibles . Practice in different Countries 89 91 Upper Harz , Assay with Potassium Carbonate ; Charge . Galena containing large quantities of Earths ; Lead ...
Page 37
... black copper ) . The resulting oxides are more frequently slagged off by themselves or by solvent agents added as a flux ( borax , glass , etc. ) , than absorbed by the porous vessel used for ... black flux ) , WORKING BY THE DRY METHOD . 37.
... black copper ) . The resulting oxides are more frequently slagged off by themselves or by solvent agents added as a flux ( borax , glass , etc. ) , than absorbed by the porous vessel used for ... black flux ) , WORKING BY THE DRY METHOD . 37.
Page 38
Bruno Kerl. ( potassium or sodium carbonate , black flux ) , or the slag- ging off of earthy and other admixtures is effected ( borax , glass , alkalies ) . e . Mixing fusion , to prepare alloys by fusing different metals together ( gold ...
Bruno Kerl. ( potassium or sodium carbonate , black flux ) , or the slag- ging off of earthy and other admixtures is effected ( borax , glass , alkalies ) . e . Mixing fusion , to prepare alloys by fusing different metals together ( gold ...
Page 76
... black flux . For vigorous reduction it is made from 1 part of saltpetre and 3 parts of argol ; for less vigorous , either of 1 and 2 , or 1 and 2 parts respectively . Another flux Muspratt's techn . Chemie , 3d Aufl . Bolley , Handb ...
... black flux . For vigorous reduction it is made from 1 part of saltpetre and 3 parts of argol ; for less vigorous , either of 1 and 2 , or 1 and 2 parts respectively . Another flux Muspratt's techn . Chemie , 3d Aufl . Bolley , Handb ...
Page 77
... flux has 3 of argol to 2 of saltpetre . A mixture of argol and saltpetre , before it is deflagrated , is called raw flux . As black flux , on account of its hygroscopic pro- perties , must be frequently prepared fresh , and this work is ...
... flux has 3 of argol to 2 of saltpetre . A mixture of argol and saltpetre , before it is deflagrated , is called raw flux . As black flux , on account of its hygroscopic pro- perties , must be frequently prepared fresh , and this work is ...
Contents
70 | |
73 | |
80 | |
86 | |
92 | |
101 | |
113 | |
120 | |
123 | |
127 | |
128 | |
129 | |
137 | |
144 | |
150 | |
152 | |
201 | |
204 | |
207 | |
213 | |
219 | |
226 | |
236 | |
239 | |
251 | |
275 | |
288 | |
291 | |
297 | |
299 | |
300 | |
Other editions - View all
Common terms and phrases
2.5 grammes 20 grammes 6.1 cubic inches added alloy ammonia ammonium antimony aqua regia argol arsenic assay sample beaker-glass bismuth black flux boiled borax burette cent centimeter 0.061 cubic charcoal charge chloride coal cobalt color common salt containing copper covering of common crucible crucible Fig cubic centimeter 0.061 cubic centimeters cubic inches cupelled decomposed determined diluted Dingler dish dried ferric oxide ferrous filtered filtrate flask fluid Fresenius furnace fused 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 method millimeters mixed muffle nickel nitric acid percentage placed platinum potassium carbonate potassium cyanide poured powdered precipitated pyrites quantity of lead quantity of silver residue roasted scorifier slag sodium carbonate sodium sulphide specific gravity sulphate sulphuretted hydrogen sulphuric acid temperature thousandths titrated tube u. h. Ztg washed weighed WET ASSAYS zinc Ztschr
Popular passages
Page 12 - Pacts about Peat as an Article of Fuel : With Remarks upon its Origin and Composition, the Localities in which it is found, the Methods of Preparation and Manufacture, and the various Uses to which it is applicable ; together with many other matters of Practical and Scientific Interest. To which is added a chapter on the Utilization of Coal Dust with Peat for the Production of an Excellent Fuel at Moderate Cost, specially adapted for Steam Service.
Page 6 - Assistant : Comprising Metallurgic Chemistry; the Arts of Working all Metals and Alloys ; Forging of Iron and Steel ; Hardening and Tempering ; Melting and Mixing; Casting and Founding ; Works in Sheet Metal; the Processes Dependent on the Ductility of the Metals ; Soldering ; and the most Improved Processes and Tools employed by Metalworkers. With the Application of the Art of Electro-Metallurgy to Manufacturing Processes; collected from Original Sources, and from the works of Holtzapffel, Bergeron,...
Page 4 - BLINN.— A Practical Workshop Companion for Tin, SheetIron, and Copper-plate Workers : Containing Rules for describing various kinds of Patterns used by Tin, Sheet-Iron and Copper-plate Workers; Practical Geometry; Mensuration of Surfaces and Solids ; Tables of the Weights of Metals, Lead-pipe, etc.
Page 9 - DYER AND COLOR-MAKER'S COMPANION: Containing upwards of two hundred Receipts for making Colors, on the most approved principles, for all the various styles and fabrics now in existence; with the Scouring Process, and plain Directions for Preparing...
Page 3 - Metallurgy of Iron. A TREATISE ON THE METALLURGY OF IRON : containing Outlines of the History of Iron Manufacture, Methods of Assay, and Analyses of Iron Ores, Processes of Manufacture of Iron and Steel, &c. By H. BAUERMAN, FGS, Associate of the Royal School of Mines.
Page 7 - A Practical Treatise on Mechanical Engineering: Comprising Metallurgy, Moulding, Casting, Forging, Tools, Workshop Machinery, Mechanical Manipulation, Manufacture of SteamEngines, etc.
Page 2 - Companion : A Treatise in which the Practical Operations of the Trade are Systematically laid down : with Copious Directions Preparatory to Papering; Preventives against the Effect of Damp on Walls ; the Various Cements and Pastes Adapted to the Several Purposes of the Trade; Observations and Directions for the Panelling and Ornamenting of Rooms, etc. By JAMES ARROWSMITH, Author of "Analysis of Drapery,