Hydrofluoric acid, not electrolysable, 770.
"Experimental Researches in Electricity, Volume 1" by Michael Faraday
The use of hydrofluoric acid, even in small quantities to prevent fermentation, should not be allowed.
"Scientific American Supplement, No. 832, December 12, 1891" by Various
It is sometimes used to detect hydrofluoric acid, which changes its color to yellow.
"A System of Instruction in the Practical Use of the Blowpipe" by Anonymous
The portion insoluble in water is readily dissolved in hydrofluoric acid, and is converted into zircon potassium fluoride.
"Scientific American Supplement, No. 441, June 14, 1884." by Various
With absolutely anhydrous hydrofluoric acid the current will no longer pass.
"Scientific American Supplement, No. 561, October 2, 1886" by Various
Second, hydrofluoric acid will bite its way through glass.
"The Summons" by A.E.W. Mason
It smells somewhat like hypochlorous acid, etches dry glass, and decomposes water, liberating ozone, and forming hydrofluoric acid.
"Scientific American Supplement, No. 633, February 18, 1888" by Various
The preparation of fluorine was finally accomplished by the French chemist Moissan by the electrolysis of hydrofluoric acid.
"An Elementary Study of Chemistry" by William McPherson
For deep etching, hydrofluoric acid is diluted with 11/2 vols.
"Scientific American Supplement, No. 1157, March 5, 1898" by Various
Hydrofluoric acid will not affect a pure diamond, but will dissolve all imitations.
"Practical Mechanics for Boys" by J. S. Zerbe
Acid Etching This process for the decoration of glass involves the application of hydrofluoric acid to the glass surface.
Hydrofluoric acid or a similar chemical may be used to give glass a matte, frosted appearance (similar to that obtained by surface sandblasting).
Firefighters on Monday morning found two workers injured when a sight glass on a pump unit ruptured , exposing them to a mixture of propane and hydrofluoric acid, said Memphis Fire Department spokesman Wayne Cooke.
Memphis Fire Department spokesman Wayne Cooke says the workers were exposed to a mixture of propane and hydrofluoric acid when a sight glass on a pump unit ruptured .