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absorption apparatus acetic acid acid solution acidulate add a little alumina ammonia ammonium amount asbestos ashless filter barium sulphate beaker bichromate boat bottle bulb burette burner c.c. hydrochloric acid c.c. of water c.c. strong c.c. water carbonaceous matter carbonic acid caustic cent chloric acid chromic cold water color combustion cool copper decant decomposed determination dilute hydrochloric acid dissolve evaporate to dryness excess of ammonia ferric chloride ferric oxide ferrous sulphate filtrate flask funnel fused glass grammes grammes of sodium heat to boiling hot water hydrofluoric acid hydrogen sulphide ignite inches insoluble matter iodine iron liquid litre little sodium manganese dioxide method minutes molybdic acid nickel nitrate nitric acid oxygen phosphoric acid piece pig-iron pipette platinum dish porcelain potassium chlorate redissolve residue salt sample shown in Fig silica sodium carbonate soluble standard solution steel stirring stopcock stopper sulphuric acid temperature test-tube titanic acid transfer treat wash weigh zinc
Seite 282 - Weigh an exact imperial half•pint of the soil in any state of dryness. -When this weight is multiplied by 150 it will give very nearly the weight of a cubic foot of the soil in that state. 2. Chemical Analysis.
Seite 178 - ... and dried sample of manganese ore to be tested are put into the flask, the cork replaced, and the contents again made to boil gently over a gas flame until it is seen that the whole of the black part of the manganese is dissolved. The water in the small flask or beaker is then allowed to recede through the bent tube into the larger flask, more distilled water is added to rinse out the small flask or beaker and bent tube, the cork well rinsed, and the contents of the flask made up to about 8 or...