Bulletin - Bureau of Chemistry, Issues 116-124U.S. Government Printing Office, 1908 |
From inside the book
Results 1-5 of 100
Page 21
... solution of NaHSO2 + H2SO . This reagent added to a water solution of any of the fol- lowing coal - tar colors , decolorizes the solution , and on heating the color re- appears but disappears again on cooling . The heating and cooling ...
... solution of NaHSO2 + H2SO . This reagent added to a water solution of any of the fol- lowing coal - tar colors , decolorizes the solution , and on heating the color re- appears but disappears again on cooling . The heating and cooling ...
Page 22
... solution began to show a return of the color depended on the amount of sodium bisulphite reagent used . It was also found that , in many cases at least , if this reagent was added in considerable excess of the amount required to bleach ...
... solution began to show a return of the color depended on the amount of sodium bisulphite reagent used . It was also found that , in many cases at least , if this reagent was added in considerable excess of the amount required to bleach ...
Page 44
... solution , filter and keep at same temperature . Add 30 cc of the 24 per cent tan- nic - acid solution to the flask , fill to mark with water , shake , and keep cool ( 15 ° C. or less ) for twelve hours ( usually overnight ) . Filter ...
... solution , filter and keep at same temperature . Add 30 cc of the 24 per cent tan- nic - acid solution to the flask , fill to mark with water , shake , and keep cool ( 15 ° C. or less ) for twelve hours ( usually overnight ) . Filter ...
Page 46
... solutions after removing the insoluble proteid by filtering , and after coagulating and filtering , are given : TABLE III . - Acidity determinations . [ Comparing the original solution , the solution after filtering , and the solution ...
... solutions after removing the insoluble proteid by filtering , and after coagulating and filtering , are given : TABLE III . - Acidity determinations . [ Comparing the original solution , the solution after filtering , and the solution ...
Page 47
... solution is recommended . The determination of kreatin and kreatinin was also investigated this year . According to the method suggested for kreatinin 20 cc of the coagulable proteid filtrate are used for the determination , but as this ...
... solution is recommended . The determination of kreatin and kreatinin was also investigated this year . According to the method suggested for kreatinin 20 cc of the coagulable proteid filtrate are used for the determination , but as this ...
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Other editions - View all
Common terms and phrases
acetate adulterated Agricultural alkaline alkaloidal ammonia amount amyl alcohol analysis associate referee average barley benzoate benzoic acid boiling bottle Bureau of Chemistry calcium carbon cent Chem chemical chemists chlorid citral color committee containing dairy determination digestion dilute distilled drug ether evaporated Experiment Station extract fed organic phosphorus feeding fertilizer filter filtrate flask grains grams heat hydrochloric acid hydroxid inorganic juice ketchup label Laboratory lecithin lentiscus less magnesium malt manufacture mealy milk misbranded mixture nitric acid nitrogen nutritive ratio oats official method oxid percentage phosphate phosphoric acid phosphorus polarization potash potassium pounds precipitate production value protein protein content pure quantity reagent recommended residue results obtained salicylic acid salts samples sodium soil soluble solution starch subacetate substance sucrose sugar sulphuric acid sumac temperature tion titration urine wash Washington weight wine
Popular passages
Page 31 - ' misbranded, ' ' as used herein, shall apply to all drugs, or articles of food, or articles which enter into the composition of food, the package or label of which shall bear any statement, design or device regarding such article, or the ingredients or substances contained therein which shall be false or misleading in any particular...
Page 3 - Second. In the case of articles labeled, branded, or tagged so as to plainly indicate that they are compounds, imitations, or blends, and the word "compound," "imitation,
Page 68 - In the case of mixtures or compounds which may be now or from time to time hereafter known as articles of food, under their own distinctive names, and not an imitation of or offered for sale under the distinctive name of another article, if the name be accompanied on the same label or brand with a statement of the place where said article has been manufactured or produced.
Page 37 - In the case of food: (1) If any substance or substances have been mixed with it, so as to lower or depreciate, or injuriously affect its quality, strength, or purity; (2) If any inferior or cheaper substance or substances have been substituted wholly or in part for it; (3) If any valuable or necessary constitutent or ingredient has been wholly or in part abstracted from it...
Page 45 - Fourth. If the package containing it, or its label, shall bear any statement, design, or device, regarding the ingredients or the substances contained therein, which statement, design, or device shall be false or misleading in any particular.
Page 68 - If the package containing it or its label shall bear any statement, design or device regarding the ingredients or the substances contained therein, which statement, design or device shall be false or misleading in any particular; provided, that an article of food which does not contain any added poisonous or deleterious ingredients...
Page 67 - If the contents of the package as originally put up shall have been removed, in whole or in part, and other contents shall have been placed in such package, or if...
Page 67 - If it be labeled or branded so as to deceive or mislead the purchaser, or purport to be a foreign product when not so, or if the contents of the package as originally put up shall have been removed, in whole or in part, and other contents shall have been placed in such package...
Page 3 - Second. If any substance has been substituted wholly or in part for the article. Third. If any valuable constituent of the article has been wholly or in part abstracted.
Page 69 - Said guaranty, to afford protection, shall contain the name and address of the party or parties making the sale of such articles to such dealer, and in such case said party or parties shall be amenable to the prosecutions, fines, and other penalties which would attach, in due course, to the dealer under the provisions of this Act.