Journal of the American Chemical Society, Volum 20American Chemical Society, 1898 Features definitive articles and communications, as well as book and software reviews, covering all areas of chemistry. |
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Resultat 1-5 av 49
Side 5
... alkali , using phenol - phthalein as indicator . The result is usually reported as acetic acid , without attempting to separate this from the small amounts of other organic acids present . For ash , ten grams are dried and burned in a ...
... alkali , using phenol - phthalein as indicator . The result is usually reported as acetic acid , without attempting to separate this from the small amounts of other organic acids present . For ash , ten grams are dried and burned in a ...
Side 49
... alkali is to be titrated with decinormal hydrochloric acid , and the amount of acetic acid calculated from the difference between the amount of alkali solution first taken , and the quantity of hydro- chloric acid required to neutralize ...
... alkali is to be titrated with decinormal hydrochloric acid , and the amount of acetic acid calculated from the difference between the amount of alkali solution first taken , and the quantity of hydro- chloric acid required to neutralize ...
Side 50
... alkali strength , in a flask under return condenser . Phosphoric acid is added in ex- cess and the contents of the flask distilled with steam into a re- ceiver containing a known quantity of decinormal alkali solution . To drive the ...
... alkali strength , in a flask under return condenser . Phosphoric acid is added in ex- cess and the contents of the flask distilled with steam into a re- ceiver containing a known quantity of decinormal alkali solution . To drive the ...
Side 58
... alkali , all stated further on in this paper . THE ANHYDRIDES OF KOLATANNIN AND THEIR DERIVATIVES . By judiciously heating kolatannin several anhydrides may be prepared , as described below , the amounts of water driven off varying with ...
... alkali , all stated further on in this paper . THE ANHYDRIDES OF KOLATANNIN AND THEIR DERIVATIVES . By judiciously heating kolatannin several anhydrides may be prepared , as described below , the amounts of water driven off varying with ...
Side 59
... alkali solutions . The calculated loss of weight of the tannin in preparing this anhydride was 2.65 per cent . The observed loss of weight was 2.77 per cent . The body was subjected to combustion with the following stated results ...
... alkali solutions . The calculated loss of weight of the tannin in preparing this anhydride was 2.65 per cent . The observed loss of weight was 2.77 per cent . The body was subjected to combustion with the following stated results ...
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Andre utgaver - Vis alle
Journal of the American Chemical Society, Volum 41 American Chemical Society Uten tilgangsbegrensning - 1919 |
Journal of the American Chemical Society, Volum 43 American Chemical Society Uten tilgangsbegrensning - 1921 |
Journal of the American Chemical Society, Volum 44 American Chemical Society Uten tilgangsbegrensning - 1922 |
Vanlige uttrykk og setninger
added alcohol alkali alkaloids alumina ammonia ammonium ammonium chloride amount analysis apparatus assay atomic weight atropine barium boiling bromine bulbs Calculated carbon dioxide cent Chem chemical chemistry chemists chromic acid cobalt color combustion compound containing crystals determined dialyzed dilute dissolved distilled dried ether evaporation excess experiments extract ferric oxide filtered filtrate flask globulin gram gram ferric gram material gave gram silver gram zirconium heat hydrobromic acid hydrochloric acid hydroxide insoluble iodide iodine iron kolatannin lead legumin liquid mercury metal method mixture moisture molecules nitrate nitric acid nitrogen obtained Oxygen periodide phosphorus platinum potash potassium precipitate prepared proteid pure quantity reaction reagent residue salt sample saturated selenium separated silicon silicon tetrachloride silver chloride sodium sodium carbonate sodium chloride solu soluble solution solvent starch substance sulphate sulphide sulphuric acid tannin temperature tetrachloride thorium tion tube volume washed zirconium dioxide zirconium tetrachloride
Populære avsnitt
Side 43 - such libel cases shall conform, as near as may be, to proceedings of admiralty, except that either party may demand trial by jury of any issue of fact joined in such case, and all such proceedings shall be at the suit of and in the name of the United
Side 40 - Second. If, when sold under or by a name not recognized in the United States Pharmacopoeia, but which is found in the National Formulary, it differs from the standard of strength, quality, or purity, according to the tests laid down in
Side 40 - 4. That it shall be the duty of every district attorney to whom the Secretary of Agriculture shall report any violation of this Act to cause proceedings to be commenced and prosecuted without delay for the fines and penalties in such case provided. DEFINITIONS. Sec.
Side 920 - the progress of manufacture for the use of the several custom-houses, and for other purposes, to be delivered to the Governor of each state in the Union, or such person as he may appoint, for the use of the States, respectively, to the end that a uniform standard of weights and measures may be established throughout the Union.
Side 41 - if they contain terra alba, barytes, talc, chrome yellow, or other mineral substances or poisonous colors or flavors, or other ingredients deleterious or detrimental to health: Provided, That an article of food, beverage, condiment, or drug which does not contain any added poisonous
Side 43 - the provisions of this Act, shall be adjudged to pay, in addition to the penalties heretofore provided for, all the necessary costs and expenses incurred in inspecting and analyzing such adulterated articles which said person may have been found guilty of manufacturing, selling, or offering for sale. Sec.
Side 41 - ingredients, shall not be deemed to be adulterated in the following cases : First. In the case of mixtures or compounds which may be now or from time to time hereafter known
Side 43 - and upon conviction shall be fined not exceeding one hundred nor less than ten dollars, or imprisonment not exceeding one hundred nor less than thirty days, or both. And any person found guilty of manufacturing, or offering for sale, or selling an adulterated, impure, or misbranded article of food, condiment, or drug in violation of the provisions of this
Side 291 - the portion of coal used for the determination of moisture, at first over a very low flame, with the crucible open and inclined, till free from carbon. If properly treated, this sample can be burned much more quickly than the dense carbon left from the determination of volatile matter.
Side 39 - country of any article of food, drugs, or condiments which is adulterated or misbranded within the meaning of this Act is hereby prohibited, and any person who shall ship or deliver for shipment from any State or Territory or the District of Columbia or foreign country to any other State or Territory or the District of Columbia, or to a foreign country, or who shall receive in any State