William Hillbrand, American discoverer of helium

William Hillbrand, American discoverer of helium

H408/0221 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 51.8MB

Downloadable file size: 3.3MB

Price image Pricing

Please login to use the price calculator


Credit: SCIENCE PHOTO LIBRARY

Caption: William Hillebrand. Portrait of William F. Hillebrand (1853-1925), American geochemist and discoverer of the presence of helium gas on Earth. In 1888 Hillebrand found that the mineral uraninite or pitchblende released an inert gas when heated with sulphuric acid. Hillebrand initially thought that this gas was nitrogen. Sir William Ramsay analysed the spectrum of the gas in 1895 and showed that it was helium, an element previously only detected in the Sun. In 1875 Hillebrand made the first pure sample of the metal cerium by electrolysis of the mineral fused cerous chloride.

Release details: Model release not available. Property release not required.

Keywords: cerium, chemist, discoverer, geochemist, helium, hillebrand, portraits, surname h, william

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.