Pyrophoric alloys and the modern “Flint and Steel”

• Publisher: Elsevier Science
• Year: 1911
• Tongue: English
• Weight: 82 KB
• Volume: 171
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(11)91047-3

✦ Synopsis

I2I

since the contraction induced by formalin separates the gelatin from the glass. Much more quinone and sodium-quinonesulphonate can be used than formalin without decreasing the fluidity of the resulting gelatin solutions.

Uranium Ore in Mexico. (L'Ind. Chimica, x,27o.)--Mr. W.

Niven discovered ,a new mineral in the Guerrero district of Mexico which was a hydrophosphate of uranium and copper. This mineral, which is called torbernite has a slight action on a photographic plate in the dark. Experiments are being made to ascertain the suitability of the mineral as a raw material for the manufacture of radium salts.

Recent Hydro-electric Practice in Switzerland. PROF. W. F. DURAND. (Eng. Record, lxli, 2o.)~A very interesting illustrated article on hydro-electric power plants in different parts of Switzerland which will anaply repay ~perusal.