James Ballantyne Hannay

Authors

Abstract

James Ballantyne Hannay (1855-1890), a self-made scientist and skilful experimenter, discovered that
supercritical fluids dissolve solids, studied the influence of pressure and temperature, and thus set the stage for the development
of the powerful analytical and separation technique of supercritical gas extraction. He proved that the critical
state is not the solution of one phase in the other, but the gas and liquid phases become one, having uniform properties
throughout. He invented the time method technique that allows determining the existence and nature of hydrates in
simple and complex salts. He was the first to prepare artificial diamonds and studied the toasting of pyrite and how to
manufacture lead, its oxides and salts in a state of high purity.

Published

2020-10-28

How to Cite

Wisniak, J. . (2020). James Ballantyne Hannay. NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) CHEMICAL SCIENCES JOURNAL, 41(3), 001-010. Retrieved from https://revista.cnic.cu/index.php/RevQuim/article/view/599