Air, Water, and Food from a Sanitary StandpointJ. Wiley & sons, 1909 - 278 sider |
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Resultat 1-5 av 18
Side 109
... filtrate take 10 c.c. for nitrates ( see p . 110 ) . To 100 c.c. of the filtered sample or of the origi- nally colorless water add 10 c.c. of sulphanilic acid in acetic acid and 10 c.c. of naphthylamine acetate . After standing 5 to 10 ...
... filtrate take 10 c.c. for nitrates ( see p . 110 ) . To 100 c.c. of the filtered sample or of the origi- nally colorless water add 10 c.c. of sulphanilic acid in acetic acid and 10 c.c. of naphthylamine acetate . After standing 5 to 10 ...
Side 120
... filtrate than corresponds to the amount of sodium carbonate added . From the excess the amount of sodium carbonate in the water may be determined . Any alkali carbonate present would be calculated as temporary hardness by the direct ...
... filtrate than corresponds to the amount of sodium carbonate added . From the excess the amount of sodium carbonate in the water may be determined . Any alkali carbonate present would be calculated as temporary hardness by the direct ...
Side 138
... filtrate . If the tint produced is weaker than that given by the unfiltered water , repeat the operation on a fresh portion of the water , using the same filter , and continue repeating with new portions of the water and always using ...
... filtrate . If the tint produced is weaker than that given by the unfiltered water , repeat the operation on a fresh portion of the water , using the same filter , and continue repeating with new portions of the water and always using ...
Side 140
... filtrate . Wash once with hot water , transfer the filter to the original dish , and dissolve the sulphides by boiling with dilute nitric acid ( 1 part acid , sp . gr . 1.2 , to 5 parts water ) . Filter and wash ; evaporate to 10-15 ...
... filtrate . Wash once with hot water , transfer the filter to the original dish , and dissolve the sulphides by boiling with dilute nitric acid ( 1 part acid , sp . gr . 1.2 , to 5 parts water ) . Filter and wash ; evaporate to 10-15 ...
Side 181
... filtrate , then wash with 10 c.c. of alcohol and finally with 10 c.c. of 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 ...
... filtrate , then wash with 10 c.c. of alcohol and finally with 10 c.c. of 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 ...
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...