Air, Water, and Food from a Sanitary StandpointJ. Wiley & sons, 1909 - 278 sider |
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Resultat 1-5 av 27
Side 175
... ether and connect the extractor with the condenser . After the coil has been extracted for at least two hours remove the extractor and evaporate the petroleum ether at low temperature , taking care to avoid the vicinity of free flames ...
... ether and connect the extractor with the condenser . After the coil has been extracted for at least two hours remove the extractor and evaporate the petroleum ether at low temperature , taking care to avoid the vicinity of free flames ...
Side 176
... ether , but care should be taken that the ether is perfectly dry , otherwise other substances than fat , principally milk - sugar , will be extracted . On the other hand , substituted glycerides may not be dissolved out by ether . For ...
... ether , but care should be taken that the ether is perfectly dry , otherwise other substances than fat , principally milk - sugar , will be extracted . On the other hand , substituted glycerides may not be dissolved out by ether . For ...
Side 178
... ether and pe- troleum ether and blowing it off into the flask . Distil off the solvent and dry the residual fat to constant weight in the water oven . Notes . It is almost useless to try to extract the fat from milk by shaking it ...
... ether and pe- troleum ether and blowing it off into the flask . Distil off the solvent and dry the residual fat to constant weight in the water oven . Notes . It is almost useless to try to extract the fat from milk by shaking it ...
Side 181
... ether . Dry the crucible for 30 minutes at the temperature of boiling water and weigh . Find the milligrams of lactose monohydrate corresponding to the weight of cuprous oxide from Table XII on page 248 and calculate the percentage ...
... ether . Dry the crucible for 30 minutes at the temperature of boiling water and weigh . Find the milligrams of lactose monohydrate corresponding to the weight of cuprous oxide from Table XII on page 248 and calculate the percentage ...
Side 186
... ether for an hour or more . Evaporate the ether extract , which contains the annatto if present , add 5 c.c. of water , and dilute sodium hydroxide until the mixture , after thorough beating and stirring with a glass rod is faintly ...
... ether for an hour or more . Evaporate the ether extract , which contains the annatto if present , add 5 c.c. of water , and dilute sodium hydroxide until the mixture , after thorough beating and stirring with a glass rod is faintly ...
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Air, Water, and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1909 |
Air, Water and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1911 |
Air, Water, and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1909 |
Vanlige uttrykk og setninger
acetic adulterated alcohol algæ alkaline ammonia ammonium amount apparatus barium hydroxide beaker boiling bottle burette butter c.c. of water carbon dioxide casein cent Chem Chemistry chlorine color compounds contain cubic centimeters determination digestion dilute dish dissolved distilled water Elements Engineering ether evaporate extract Fehling's solution filter filtrate flask glass grams heat human hydrochloric acid ignited inches iodine laboratory Large 12mo liquid liter Manual Materials Mechanics method micro-organisms milk mineral minutes Nessler nitric acid nitrogen obtained odor organic matter oxidation oxygen phenolphthalein pipette platinum polluted portion potassium precipitate present proteids quantity residue rubber salts sample Sanitary sewage shaking sodium carbonate sodium hydroxide solids soluble solution specific gravity standard starch stopper stream substances sugar sulphate sulphuric acid surface-waters Tables temperature Text-book thiosulphate tion titration Treatise tube vanillin vegetable volume wash water-bath water-supply weight wine ΙΟ
Populære avsnitt
Side 160 - That the term blend as used herein shall be construed to mean a mixture of like substances, not excluding harmless coloring or flavoring ingredients used for the purpose of coloring and flavoring only: And...
Side 157 - That for the purposes of this act an article shall be deemed to be adulterated: In case of drugs: First, If, when a drug is sold under or by a name recognized In the United States Pharmacopoeia...