Essays in Historical ChemistryMacmillan and Company, limited, 1902 - 582 pages |
From inside the book
Results 1-5 of 61
Page 51
... oxide . " One of the most conspicuous properties of this kind of air is the great diminution of any quantity of common air with which it is mixed , attended with a turbid red , or deep orange colour , and a considerable heat . . . . The ...
... oxide . " One of the most conspicuous properties of this kind of air is the great diminution of any quantity of common air with which it is mixed , attended with a turbid red , or deep orange colour , and a considerable heat . . . . The ...
Page 56
... oxide , by all means let him , and , when you wake with the sweet consciousness that " it is all over , " give a passing benediction to the memory of Priestley , for he first told us of the existence of that gas . If , too , as you draw ...
... oxide , by all means let him , and , when you wake with the sweet consciousness that " it is all over , " give a passing benediction to the memory of Priestley , for he first told us of the existence of that gas . If , too , as you draw ...
Page 57
... oxide gas ] ; but as I had got nothing like this remarkable appearance from any kind of air besides . this particular modification of nitrous air , and I knew no nitrous air was used in the preparation of mercurius calcinatus , I was ...
... oxide gas ] ; but as I had got nothing like this remarkable appearance from any kind of air besides . this particular modification of nitrous air , and I knew no nitrous air was used in the preparation of mercurius calcinatus , I was ...
Page 70
... oxide , nitre and magnesium nitrate , and by the distillation of a mixture of manganese oxide and arsenic acid . It was at Upsala , too , that he began and finished his work on manganese , chlorine , and baryta ; he also demonstrated ...
... oxide , nitre and magnesium nitrate , and by the distillation of a mixture of manganese oxide and arsenic acid . It was at Upsala , too , that he began and finished his work on manganese , chlorine , and baryta ; he also demonstrated ...
Page 90
... oxide comes in contact with air , the oxygen in the air combines with the nitric oxide to form a product soluble in water . If the mixture of gases is made in a tube standing over water , the diminution in volume , conse- quent on the ...
... oxide comes in contact with air , the oxygen in the air combines with the nitric oxide to form a product soluble in water . If the mixture of gases is made in a tube standing over water , the diminution in volume , conse- quent on the ...
Other editions - View all
Common terms and phrases
Academy action alcohol amygdalin Annalen appears atomic weights benzene Berthelot Berzelius bodies boiling point Boyle calx Cannizzaro carbonic acid Cavendish century Chemical Society chemists chlorine colloid combination common air composition compounds constitution contained Dalton Davy decomposed density determined diffusion discovery doctrine Dumas elements ether ethyl existence experimental experiments fact Faraday Fermier-général gaseous gases Graham heat honour hydrate hydrogen hydroxylamine hypothesis inflammable inflammable air influence investigation isomeric known Kopp Kopp's laboratory labours Lavoisier Lavoisier's lectures Liebig liquid matter memoir Mendeleeff mercury metal method Meyer mixture mode molecular molecules nature nitric acid nitrogen observations obtained organic chemistry oxide oxygen palladium paper Philosophical phlogiston physical platinum potassium Priestley Priestley's Professor quantity radicle recognised regarded relations remarkable Royal Society salts says Scheele scientific soluble solution specific gravity specific volume substances sulphate sulphur temperature theory tion tube vapour Victor Meyer Watt whilst Wöhler
Popular passages
Page 493 - Without entering into details, I will give the conclusions I then arrived at in the very words I used : — 1. The elements, if arranged according to their atomic weights, exhibit an evident periodicity of properties. 2. Elements which are similar as regards their chemical properties have atomic weights which are either of nearly the same value (eg, platinum, iridium, osmium) or which increase regularly (eg, potassium, rubidium, cesium).
Page 365 - So live, that when thy summons comes to join The innumerable caravan, which moves To that mysterious realm, where each shall take His chamber in the silent halls of death, Thou go not, like the quarry-slave at night, Scourged to his dungeon, but, sustained and soothed By an unfaltering trust, approach thy grave, Like one who wraps the drapery of his couch About him, and lies down to pleasant dreams.
Page 189 - My desire to escape from trade, which I thought vicious and selfish, and to enter into the service of Science, which I imagined made its pursuers amiable and liberal, induced me at last to take the bold and simple step of writing to Sir H. Davy...
Page 277 - It is conceivable that the various kinds of matter, now recognized as different elementary substances, may possess one and the same ultimate or atomic molecule existing in different conditions of movement. The essential unity of matter is an hypothesis in harmony with the equal action of gravity upon all bodies.
Page 292 - To form some conception of the degree of coarse-grainedness indicated by this conclusion, imagine a rain drop, or a globe of glass as large as a pea, to be magnified up to the size of the earth, each constituent molecule being magnified in the same proportion. The magnified structure would be coarser grained than a heap of small shot, but probably less coarse grained than a heap of cricketballs.
Page 58 - The feeling of it to my lungs was not sensibly different from that of common air, but I fancied that my breast felt peculiarly light and easy for some time afterwards. Who can tell but that in time this pure air may become a fashionable .article 1 Lee. cit. p. 94. in luxury ? Hitherto only two mice and myself have had the privilege of breathing it.
Page 108 - By this means upwards of 135 grains of water were condensed in the cylinder, which had no taste nor smell, and which left no sensible sediment when evaporated to dryness ; neither did it yield any pungent smell during the evaporation ; in short, it seemed pure water.
Page 153 - In this situation, I saw reason to embrace what is generally called the heterodox side of almost every question.
Page 108 - ... of common air; and that the bulk of the air remaining after the explosion is then very little more than four-fifths of the common air employed ; so that as common air cannot be reduced to a much less bulk than that by any method of phlogistication, we may safely conclude, that when they are mixed in this proportion, and exploded, almost all the inflammable air, and about one-fifth part of the common air, lose their elasticity, and are condensed into the dew which lines the glass.
Page 44 - But I have often thought that, upon the whole, this circumstance was no disadvantage to me ; as, in this situation, I was led to devise an apparatus and processes of my own, adapted to my peculiar views ; whereas, if I had been previously accustomed to the usual chemical processes, I should not have so easily thought of any other, and without new modes of operation, I should hardly have discovered anything materially new.