[PT032ABE], Patent Application, Thomas Alva Edison, September 12th, 1888

Item

Abstract

Draft (by TAE?) patent application for extracting gold from sulphureted ores. Results in Case 801; Pat. 474,591. Draft claims; no drawings. New process "is based upon the fact that the coating upon the gold [which prevents amalgamation with Hg] may be removed by the application of weak nitric acit, and that at the same time the surface of the gold may be amalgamated if there is added to the weak acid solution a small quantity of a mercurial salt, especially nitrate of mercury." [note in Edison's hand and after claims becomes shorthand of a note to Dyer]

Date

1888-09-12

Decade

1880-1889

Identifier

PT032ABE

Folder Set

PT032ABE

Title

[PT032ABE], Patent Application, Thomas Alva Edison, September 12th, 1888

Microfilm ID

114:469

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University