Quantitative Metallurgical Analysis: Selected Methods for Chemical Analaysis of Ores, Slags, Coal, Pig Iron, and Steel |
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Quantitative Metallurgical Analysis: Selected Methods for Chemical Analaysis ... Charles Frederick Sidener No preview available - 2015 |
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acetic acid acid and evaporate add a little add ammonia add water ammonia beaker bromine burette c.c. capacity c.c. of concentrated c.c. of dilute c.c. of strong c.c. of water calcium chloride casserole Chem chromic acid color combined carbon concentrated hydrochloric acid concentrated nitric acid copper crucible decantation DETERMINATION dilute hydrochloric acid dilute sulphuric acid Dilute the solution dilute with water dioxide drops evaporate to dryness ferric ferrous sulphate filter and wash filter paper five grams fumes of sulphuric funnel fused mass grams grams of potassium grams of sodium graphite heat to boiling hot water hydrochloric acid hydrofluoric acid hydrogen ignite and weigh iodine Jour liter manganese method minutes nitric acid nitric acid sp oxide permanganate solution phosphorus platinum crucible potassium chlorate potassium permanganate reaction sample silica slag slight excess sodium carbonate standard solution strong nitric acid sulphide sulphuric acid titrate wash with hot zinc
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Page 55 - Al . . . .Sb ....A ....As ....Ba . ...Bi . ...B . ...Br . . . .Cd . . . .Cs . . . .Ca ....C . . . .Ce . . . .Cl . ...Cr ....Co . ...Cb . . . .Cu...
Page 1 - Again boil until the excess of ammonia is expelled, as shown by a change of color of the liquid, and a partial precipitation.
Page 20 - ... cc A crucible may be used, but a dish is preferred. The magnesium oxide should be light and porous, not a compact, heavy variety. " The dish is heated on a triangle over an alcohol lamp, held in the hand at first. Gas must not be used, because of the sulphur it contains. The mixture is frequently stirred with a platinum wire and the heat raised very slowly, especially with soft coals. The flame is kept in motion and barely touching the dish, at first, till strong glowing has ceased, and is then...
Page 55 - Rn Re Rh Rb Ru Sm Sc Se Si Ag Na Sr S Ta Te Tb Tl Th Tm Sn Ti W U V Xe Yb Y Zn Zr...
Page 7 - ... removed for a test. When the final brown tinge is obtained, note the reading of the burette, and then wait a minute or two and observe if one or more of the preceding tests do not also develop a color.
Page 1 - Boil for a few moments to partially expel the red fumes and then add 5 cc. of strong bromine water and boil until the bromine is thoroughly expelled. The bromine is to ensure the complete destruction or removal of the red fumes.
Page 19 - Place 1 gram of pure bitumen in a " platinum crucible weighing 20 or 30 grams and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 cm. above the top of the burner. The flame should be fully 20 cm.
Page 7 - It is usually necessary to manipulate the flask in a holder over a naked flame to avoid loss by bumping. The boiling may be conducted rapidly, and toward the end it is best to heat the entire flask so as to expel every trace of liquid. The...
Page 9 - ... Allow to cool, and then decant through a small filter, leaving as much as possible of the residue of PbSO4, CaSO4, SiO2, etc., in the casserole. Wash this residue thoroughly with 1 # sulphuric acid, then with alcohol ; pour the washings through the filter each time. Dissolve the lead sulphate...
Page 10 - Alternatively, place the beaker in which the precipitation was made under the funnel, pierce the apex of the filter with a stirring rod, and wash the precipitate into the beaker with hot water. Pour warm H2SO4 ( 1 +4) through the paper and wash a few times.