Air, Water, and Food from a Sanitary StandpointJ. Wiley & sons, 1909 - 278 sider |
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Side 28
... preparation of standard solutions in an atmosphere already rich in it . When once prepared the solution must be pre- served with especial care , since contact with the hands or a whiff of the breath will reduce its strength and vitiate ...
... preparation of standard solutions in an atmosphere already rich in it . When once prepared the solution must be pre- served with especial care , since contact with the hands or a whiff of the breath will reduce its strength and vitiate ...
Side 29
... prepare exact solutions of barium hydroxide and to keep them without change , the exact value of the barium hy- droxide solution must be found by titration against the standard sulphuric acid , which is made of such a strength that I ...
... prepare exact solutions of barium hydroxide and to keep them without change , the exact value of the barium hy- droxide solution must be found by titration against the standard sulphuric acid , which is made of such a strength that I ...
Side 36
... preparation of the soda - lime . † The burette used for the barium hydroxide is a glass- stoppered one , differing ... preparing a good quality of soda - lime are given by Benedict and Tower : J. Am . Chem . Soc . , 21 , 396 ( 1899 ) ...
... preparation of the soda - lime . † The burette used for the barium hydroxide is a glass- stoppered one , differing ... preparing a good quality of soda - lime are given by Benedict and Tower : J. Am . Chem . Soc . , 21 , 396 ( 1899 ) ...
Side 38
... prepare the filter . Apply slight suction and add enough . asbestos fiber suspended in water to form a felt about a sixteenth of an inch thick over the platinum coil . Wash it once or twice with distilled water . If properly done 38 AIR ...
... prepare the filter . Apply slight suction and add enough . asbestos fiber suspended in water to form a felt about a sixteenth of an inch thick over the platinum coil . Wash it once or twice with distilled water . If properly done 38 AIR ...
Side 39
... Prepare also about 100 c.c. of " wash - water " by adding to distilled water I c.c. of a 10 per cent . barium chloride solution and three drops of phenolphthalein , then titrating with the barium hydroxide to a faint permanent pink ...
... Prepare also about 100 c.c. of " wash - water " by adding to distilled water I c.c. of a 10 per cent . barium chloride solution and three drops of phenolphthalein , then titrating with the barium hydroxide to a faint permanent pink ...
Andre utgaver - Vis alle
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...