The Analyst, Volumer 14-15Royal Society of Chemistry, 1889 International journal concerned with the development and application of analytical and bioanalytical techniques. Covers all aspects of the theory and practice of analytical science, both fundamental and applied, including bioanalysis (including biospecific assays), chromatography and electrophoresis, mass spectrometry, electrochemistry, sensors, imaging techniques, sampling and sample handling, chemometrics/statistics, atomic and molecular spectroscopy and all other areas related to measurement science. |
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Resultat 1-5 av 39
Side 12
... titrated with standard baryta water and phenol - phthalein , was found to contain 95.14 per cent . of real acetic acid ( C2H , O2 ) . From a careful consideration of the foregoing experiments , it appears that the butter in question ...
... titrated with standard baryta water and phenol - phthalein , was found to contain 95.14 per cent . of real acetic acid ( C2H , O2 ) . From a careful consideration of the foregoing experiments , it appears that the butter in question ...
Side 19
... titrated with permanganate , which showed a total of 1764 nitrous acid . The remaining 200 c.c. were now boiled for four hours , which caused 100 c.c. to distil over . The residue was now titrated , and showed a total of 175 grms ...
... titrated with permanganate , which showed a total of 1764 nitrous acid . The remaining 200 c.c. were now boiled for four hours , which caused 100 c.c. to distil over . The residue was now titrated , and showed a total of 175 grms ...
Side 26
... titrating with either hydrate or car- bonate of sodium in the presence of mineral acids , but in their absence neutralisation with alkali gives a fairly accurate idea of the amount of citric acid present , especially in concentrated ...
... titrating with either hydrate or car- bonate of sodium in the presence of mineral acids , but in their absence neutralisation with alkali gives a fairly accurate idea of the amount of citric acid present , especially in concentrated ...
Side 27
... titrated back with normal caustic soda . When testing genuine samples of lemon - juice I have generally found this process to give figures agreeing fairly well with those obtained by direct titration with soda , the results being in ...
... titrated back with normal caustic soda . When testing genuine samples of lemon - juice I have generally found this process to give figures agreeing fairly well with those obtained by direct titration with soda , the results being in ...
Side 28
... titrated against pure citric acid , as upon this the value of the process entirely depends . For this purpose I obtained samples of citric acid from seven different manufacturers . Very accurately weighed quantities of each were ...
... titrated against pure citric acid , as upon this the value of the process entirely depends . For this purpose I obtained samples of citric acid from seven different manufacturers . Very accurately weighed quantities of each were ...
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Vanlige uttrykk og setninger
acetic acid added adulteration albumen alcohol alkaline Allen alumina ammonia ammonium amount amylic alcohol apparatus arsenic barium beer boiling boracic acid bottle butter butter-fat cadmium carbonate carbonic acid caustic cent Chem chemical chemists chloride chloroform colouring matter containing copper cream detection determination dilute dissolved distillation Estcourt ESTIMATION ether evaporated excess experiments extract fatty acids filtered filtrate flask fluid fusel give grammes grams grms heat Hehner hydrochloric acid hydrogen insoluble iodine laboratory lard lime liquid litre method milk mixed mixture nitric acid nitrogen obtained oxide paper phosphate potash potassium powder precipitate present produced public analysts pure quantity reagent residue salicylic acid salts sample saponification silica soap SOCIETY OF PUBLIC soda soda-lime sodium soluble solution specific gravity starch substance sugar sulphate sulphide sulphuric acid taken temperature titrated tube Vieth volatile acids washed weight Westphal balance yeast
Populære avsnitt
Side 223 - No person shall mix, colour, stain, or powder, or order or permit any other person to mix, colour, stain, or powder any article of food with any ingredient or material so as to render the article injurious to health...
Side 53 - No person shall, with the intent that the same may be sold in its altered state without notice, abstract from an article of food any part of it so as to affect injuriously its quality, substance, or nature...
Side 53 - ... that he had no reason to believe at the time when he sold it that the article was otherwise, and that he sold it in the same state as when he purchased it, he shall be discharged from the prosecution, but shall be liable to pay the costs incurred by the prosecutor, unless he shall have given due notice to him that he will rely on the above defence.
Side 220 - ... (1) Where any matter or ingredient not injurious to health has been added to the food or drug because the same is required for the production or preparation thereof as an article of commerce, in a state fit for carriage or consumption and not fraudulently to increase the bulk, weight, or measure of the food or drug, or conceal the inferior quality thereof...
Side 53 - If the defendant in any prosecution under this Act prove to the satisfaction of the justices or court that he had purchased the article in question as the same iu nature, substance, and quality as that demanded of him by the prosecutor, and with a written warranty to that effect...
Side 223 - Under this section it is in violation of the sale of food and drugs act to " sell to the prejudice of the purchaser any article of food or any drug which is not of the nature, substance, and quality of the article demanded.
Side 54 - Viet c. 63), for havicg sold to the prejudice of the purchaser a certain article of food, to wit, beer, which was not of the nature, substance, and quality of the article demanded by the purchaser.
Side 23 - C. for one hour, filter, and wash with ammonium nitrate solution. (Test the filtrate by renewed digestion and addition of more molybdic solution.) Dissolve the precipitate on the filter with ammonia and hot water and wash into a beaker to a bulk of not more than 100 cc.
Side 219 - A brewer of beer for sale shall not adulterate beer, or add any matter or thing thereto (except finings for the purpose of clarification, or other matter or thing sanctioned by the Commissioners of Inland Revenue), before the same is delivered for consumption, and any beer found to be adulterated, or mixed with any other matter or thing (except as aforesaid), in the possession of a brewer of beer for sale shall be forfeited, and the brewer shall incur a fine of fifty pounds.
Side 45 - A convenient amount of the alcohol to be purified is shaken with pulverized potassium permanganate until it a'ssumes a decided color. It is then allowed to stand for some hours, until the permanganate has been decomposed and brown manganese oxide is deposited. A pinch of pulverized calcium carbonate is then added, and the alcohol distilled at the rate of about...