|
Atomistry » Platinum » Physical Properties » Solubility of Gases | ||
Atomistry » Platinum » Physical Properties » Solubility of Gases » |
Solubility of Gases in Platinum
The solubility of hydrogen in platinum has been studied by Sieverts, who has shown that the gas is less soluble in compact platinum than in the same weight of iron or nickel. At constant pressure the solubility rises with the temperature, whilst at constant temperature the amount of hydrogen absorbed is directly proportional to the square root of the pressure. On cooling, all the hydrogen absorbed at higher temperatures by the metal is evolved.
Platinum does not absorb carbon dioxide or sulphur dioxide. Platinum which has been heated to a high temperature in a current of hydrogen is usually found to have undergone a slight permanent change, its melting-point being depressed and its ductility reduced. This, however, appears to be due to the absorption of small quantities of carbon from traces of organic impurity in the hydrogen, and not to the influence of the pure hydrogen itself. |
Last articlesZn in 8WB0Zn in 8WAX Zn in 8WAU Zn in 8WAZ Zn in 8WAY Zn in 8WAV Zn in 8WAW Zn in 8WAT Zn in 8W7M Zn in 8WD3 |
© Copyright 2008-2020 by atomistry.com | ||
Home | Site Map | Copyright | Contact us | Privacy |