[PT032ABE1], Technical Note, Thomas Alva Edison, September 1888

Item

Abstract

Not in Edison's hand. This is a draft application for Pat. 474,591 Extracting Gold from Sulphide Ores, filed 880912; because coating on gold prevents amalgamation he removes it by applicaton of weaqk nitric acid while adding small quantity of mercurial salt, especially nitrate of mercury

Date

1888-09-00

Decade

1880-1889

Identifier

PT032ABE1

Folder Set

PT032ABE

Title

[PT032ABE1], Technical Note, Thomas Alva Edison, September 1888

Microfilm ID

114:469

Publisher

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