Joseph gay

During this visit Gay-Lussac had the opportunity of studying on the spot volcanic eruptions and earthquakes. 59.

122-2 New System of Chemical Philosophy, Manchester, 1810, part ii., p.

By their original method Gay-Lussac and Thénard determined the composition of fifteen organic substances, including sugar, starch, gum, wax, oil, various woods, resin; mucic, oxalic, tartaric, citric, and acetic acids; and albumen, fibrin, gelatin, and casein. It is worth notice that Davy admitted the advantage of the method of Gay-Lussac and Thénard, though he seems to have subsequently regarded their appropriation of the newly-discovered metal as not altogether warranted.

xliii., 1802) he shows that different gases are dilated in the same proportion when heated from 0° to 80° (Reaumur). In spring he hurriedly returned to Paris. The compound we now know as hydrogen chloride (HCl) combined with ammonia (NH₃) in a simple 1:1 ratio by volume. They pointed out differences between the muriatic and other acids, and indicated that the anomalies which it presented were explicable either on the hypothesis of water being an essential constituent of the acid, or on that of the oxymuriatic acid being a simple gas.

Gay-Lussac continued his work, and published the results in the Annales de Chimie, of which he had been joint-editor for some thirty years, up till almost his death, which took place at Paris on May 9, 1850.

Some of the appointments he held have been already referred to. This last has superseded the old method of assaying silver by cupellation, as being more rapid, more accurate, and easier of execution; and indeed all these processes are so complete and satisfactory, and are besides so identified with their author's name, that his reputation is secured by them, quite independently of his earlier work.

The chief authorities for the life of Gay-Lussac are Arago (Oeuvres, Paris, 1855, t. At first, however, they seem to have thought that the alkali metals contained hydrogen, and it was not for a couple of years that they accepted Davy's view of their simplicity. v., 1843-50, p. His earliest childish adventures, as told by Arago, herald the fearless aeronaut and undaunted investigator of volcanic eruptions.

In a letter to Clement he gives a brief account of his work, and lays claim to the first revelation of the elemental character of iodine, and again in a subsequent letter to his brother, which contains a short review of the Parisian chemists and their reception of him, the only complaint he makes is that Gay-Lussac had played him a trick in trying to appropriate the discovery of the character of iodine and of hydriodic acid.

He observed particularly that he had considerable difficulty in breathing, that his pulse was quickened, and that by the absence of moisture in the air his mouth and throat became so parched that it was painful to swallow even a piece of bread. Prior to this the numerous experiments on the volume composition of water had always brought out various complicated ratios, though approaching the simple one more or less closely.

Gay-Lussac is one of only 72 people to have his name inscribed on the Eiffel Tower

2. At the end of their memoir, however, they decided in favour of oxymuriatic acid being compound, although they had failed to get oxygen from it by heating it with carbon.