Methods in Metallurgical Analysis |
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acetate add 10 cc Add 5 cc alkaline ammonia ammonium analysis antimony arsenic assay barium BaSO4 beaker boil bulb bullion burette burn calcium calorimeter cent Chem chloric acid chloride solution color combustion containing Cool copper cubic centimeter cupel decantation determined dilute hydrochloric acid dilute nitric acid dilute sulphuric acid dilute the solution dissolve drops Erlenmeyer flask Evaporate the solution ferric ferrous Filter and wash filter paper filtrate fuse fusion glass heat hot water hydrochloric acid hydrofluoric acid hydrogen sulphide ignite iron let the precipitate liter manganese metallic method minutes nitric acid oxalate oxide oxygen phosphorus pipette platinum crucible porcelain potassium cyanide potassium permanganate precipitate settle quantity Reagents residue sample silica slag sodium carbonate sodium hydroxide solu solution of potassium solution to dryness standard solution steel stirring sulphate sulphuric acid temperature tion titanium titrate titrate with standard transfer tube volume wash the precipitate Weigh 0.5 gm Weigh 1 gm zinc
Popular passages
Page 279 - The temperature may be increased by mixing hydrogen and oxygen in the proportion of two volumes of the former to one of the latter, and burning it from a safety jet.
Page 161 - Dissolve about 1 Gm. of Alum, accurately weighed, and about 5 Gm. of ammonium chloride in 250 ml. of water, and add a few drops of methyl orange TS Heat the solution to boiling, and add a slight excess of ammonia TS until the color is distinctly yellow and then collect the precipitate on a filter, wash thoroughly with a hot solution of ammonium chloride (1 in 100), dry, ignite strongly, and weigh. The weight of the aluminum oxide so obtained, multiplied by 8.893, indicates its equivalent in A1NHi(SO.)2.l2H,O...
Page 132 - standard sodium arsenite" solution to the disappearance of the pink color, each cubic centimeter required representing 0.10 per cent, manganese. DETERMINATION OF MANGANESE BY THE FORD-WILLIAMS METHOD SOLUTIONS REQUIRED Nitric Acid for Solution. — Mix equal volumes of nitric acid, sp. gr. 1.42, and distilled water. Standard Ferrous-sulphate Solution.
Page 321 - Thallium. — Dissolve in dilute acid, add H2S, filter. Add to the filtrate ammonium sulphide and filter. If thallium is present in the precipitate it will color the Bunsen flame emerald green. Thorium. — Fuse in a platinum crucible with sodium carbonate. Cool, dissolve in water and hydrochloric acid. Evaporate to dryness and bake. Take up with dilute hydrochloric acid, filter. Add ammonia to the filtrate, filter. Dissolve the precipitate in hydrochloric acid; reprecipitate with oxalic acid, filter,...
Page 86 - On washing this residue with water the filtrate ! often runs through turbid. This can be avoided by washing with dilute nitric acid, or, better, with an acid solution of ammonium nitrate. The filtrate contains the greater part of the phosphoric acid, but the residue may contain a notable amount. Treatment of the Residue. — Fuse the residue with sodium carbonate and extract with water. Sodium phosphate and silicate go into solution and sodium titanate remains insoluble. Filter, acidify the filtrate...
Page 54 - Char the paper, burn off the carbon at as low a temperature as possible with free access of air...
Page 219 - Gooch crucible, wash with hot water, dry at 100° C., and weigh as BiOCl.
Page 215 - ... fumes are given off. Cool, dilute, warm and filter. Wash with 2 per cent sulphuric acid. Remove the filtrate from under the funnel and wash the precipitate with alcohol until the washings no longer react acid. Dry the residue, separate the paper and precipitate, burn the former in a weighed porcelain crucible, moisten the ash with a few drops of nitric acid and heat. Add a drop of sulphuric acid, drive off the acid on the hot plate and ignite gently. Add the rest of the precipitate to the contents...