Chemical News and Journal of Industrial Science, Volumer 63-64Chemical news office., 1891 |
Inni boken
Resultat 1-5 av 81
Side 3
... excess . Change of conditions , such as concentration of acid and variation of temperature , which increase the former increase also the latter . III . If the conditions are such that these metals dissolve , it would appear that the ...
... excess . Change of conditions , such as concentration of acid and variation of temperature , which increase the former increase also the latter . III . If the conditions are such that these metals dissolve , it would appear that the ...
Side 12
... excess on acidifying the solution , iodine is liberated , the quantity of which bears a definite proportion to the metallic zinc contained in the zinc powder used . 15 Zn correspond to 6 I and o'r grm . Zn to 0'407799 I or to o1356 grm ...
... excess on acidifying the solution , iodine is liberated , the quantity of which bears a definite proportion to the metallic zinc contained in the zinc powder used . 15 Zn correspond to 6 I and o'r grm . Zn to 0'407799 I or to o1356 grm ...
Side 13
... excess of the truth , as the precipitate always contained small quantities of potassium chromate . In using this method for the separation of barium and strontium attempts were made to separate varying quantities of strontium from a ...
... excess of the truth , as the precipitate always contained small quantities of potassium chromate . In using this method for the separation of barium and strontium attempts were made to separate varying quantities of strontium from a ...
Side 16
... excess of analysed oxygen . The carbon dioxide is absorbed by sodic hydrate and the oxygen by pyrogallate ; and the residue will be the nitrogen - the hydrogen being deter . mined by difference . In this way an analysis of South ...
... excess of analysed oxygen . The carbon dioxide is absorbed by sodic hydrate and the oxygen by pyrogallate ; and the residue will be the nitrogen - the hydrogen being deter . mined by difference . In this way an analysis of South ...
Side 19
... excess of lead with hydrosulphuric acid , employing ether to prevent foaming ; heat to expel excess of the reagent , cool , and complete the volume to IIO C.C. The extra 10 c.c. permits washing the gas delivery tube . Filter , transfer ...
... excess of lead with hydrosulphuric acid , employing ether to prevent foaming ; heat to expel excess of the reagent , cool , and complete the volume to IIO C.C. The extra 10 c.c. permits washing the gas delivery tube . Filter , transfer ...
Andre utgaver - Vis alle
Vanlige uttrykk og setninger
acetic acid action alcohol alkaline aluminium ammonia ammonium amount analysis antimony apparatus arabinose atomic weight band barium boiling boiling-point bromine calcium carbon cent Chem Chemical chemistry chemists chloride cobalt colour compounds containing copper crystalline crystals cyanide decomposed deposit determination didymium dilute dissolved distilled electricity elements ether ethyl evaporation excess experiments filtered filtrate flame flask gases give glass grms heat hydrate hydrochloric acid hydrogen iron liquid London m.grm magnesium manganese matter means mercury metal method mixture molecular molecules nickel nitrate nitric acid nitrogen observed obtained ordinary organic oxalate oxide oxygen paper phosphate phosphorescence phosphoric acid phosphorus platinum pole potassium precipitate present pressure produced Prof Professor pure quantity reaction residue salt sample silver Society soda sodium soluble solution specific gravity spectrum substance sulphate sulphide sulphocyanide sulphuric acid temperature theory tion tube vapour washed whilst xylose zinc
Populære avsnitt
Side 256 - The Metallurgy of Gold. A Practical Treatise on the Metallurgical Treatment of Gold-bearing Ores, including the Processes of Concentration and Chlorination, and the Assaying, Melting and Refining of Gold.
Side 69 - No English text-book at all approaches this in the COMPLETENESS with which the most modern views on the subject are dealt with. Professor Austen's volume will be INVALUABLE, not only to the student, but also to those whose knowledge of the art is far advanced.
Side 33 - The Art of Perfumery, and the Methods of Obtaining the Odours of Plants ; the Growth and general Flower Farm System of Raising Fragrant Herbs ; with Instructions for the Manufacture of Perfumes &c.
Side 74 - Committee of Revision and Publication of the Pharmacopoeia of the United States.
Side 4 - Coal-Gas, delivered in March, 1867, and printed in the ' Journal of Gas Lighting,' he considered that incandescent particles of carbon are not the source of light in gas and candle flames, but that the luminosity of these flames is due to radiations from dense, but transparent hydrocarbon vapours. As a further generalization from the...
Side 9 - SYSTEMATIC HANDBOOK OF VOLUMETRIC ANALYSIS ; or, the Quantitative Estimation, of Chemical Substances by Measure, applied to Liquids, Solids, and Gases.
Side 273 - There was no actual instruction ; I received from each individual every morning a report upon what he had done on the previous day, as well as his views on what he was engaged upon. I approved or made my criticisms.
Side 123 - ... reflected from a concave mirror through a foggy atmosphere. Green Phosphorescent Light of Molecular Impact. — At very high exhaustions the dark space becomes so large that it fills the tube. Careful scrutiny still shows the presence of the dark violet focus; and the part of the glass on which fall the rays diverging from this focus shows a sharply defined spot of greenish-yellow light.
Side 53 - A given space contains millions of millions of molecules in rapid movement in all directions, each molecule having millions of encounters in a second. In such a case, the length of the mean free path of the molecules is exceedingly small compared with the dimensions of the containing vessel, and the properties which constitute the ordinary gaseous state of matter, which depend upon constant collisions, are observed. What, then, are these molecules ? Take a single lone molecule in space.
Side 32 - WANKLYN.— MILK ANALYSIS ; a Practical Treatise on the Examination of Milk and its Derivatives, Cream, Butter, and Cheese. By JA Wanklyn, MRCS, &c.