Bulletin - Bureau of Chemistry, Issues 116-124U.S. Government Printing Office, 1908 |
From inside the book
Results 1-5 of 100
Page 13
... acid were sometimes obscured by the color of the solution , but no color was obtained in the absence of salicylic acid which would lead the analyst to suspect its presence . A positive reaction for salicylic acid may be confirmed by the ...
... acid were sometimes obscured by the color of the solution , but no color was obtained in the absence of salicylic acid which would lead the analyst to suspect its presence . A positive reaction for salicylic acid may be confirmed by the ...
Page 14
... acid reagent and milk must be used , and to warn the analyst against the excessive use of either acid or heat , since either may produce a color hardly distinguish- able from that given when formaldehyde is present . The fact that the ...
... acid reagent and milk must be used , and to warn the analyst against the excessive use of either acid or heat , since either may produce a color hardly distinguish- able from that given when formaldehyde is present . The fact that the ...
Page 43
... acid instead of merely 20 cc , on the ground that there is danger of the flame striking the bare wall of the flask and decomposing some of the am- monium sulphate . The third one requires the condenser tube to dip below the surface of ...
... acid instead of merely 20 cc , on the ground that there is danger of the flame striking the bare wall of the flask and decomposing some of the am- monium sulphate . The third one requires the condenser tube to dip below the surface of ...
Page 44
... acid 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 ) ...
... acid 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 ) ...
Page 47
... acid determination , a uniform pro- cedure should be adopted . In the case of meat extracts , most of which contain little insoluble and coagulable proteid , the titration of the original solution is recommended . The determination of ...
... acid determination , a uniform pro- cedure should be adopted . In the case of meat extracts , most of which contain little insoluble and coagulable proteid , the titration of the original solution is recommended . The determination of ...
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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.