Gold Gilding

mixture

When the ________ is stirred with an iron rod, the gold is totally absorbed by mercury.

Fire gilding

________ or Wash- gilding: a process by which an amalgam of gold (gold dissolved in liquid mercurymetal) is applied to metallic surfaces, the mercury being subsequently volatilized, leaving a film of gold or an amalgam containing.

Preparation of the amalgam

________: the gold must first be reduced to thin plates or grains, which are heated red- hot, and thrown into previously heated mercury.

Fire-gilding or Wash-gilding

a process by which an amalgam of gold (gold dissolved in liquid mercurymetal) is applied to metallic surfaces, the mercury being subsequently volatilized, leaving a film of gold or an amalgam containing

Preparation of the amalgam

the gold must first be reduced to thin plates or grains, which are heated red-hot, and thrown into previously heated mercury

Gilding:

the application of gold, silver, or other, leaf to a surface

Because the gold leaf is very very thin,

any imperfections in the surface will show.

The surface preparation will differ depending on

the base material

Sealing will prevent

oxidation and color change in leaf that does not have a high gold content.

Sealing gold or silver will result in

some loss of brightness and shininess.

The proportion of mercury to gold is

generally six (or eight) to one.

The gold amalgam is ____________, the mercury is then evaporated by a heat.

equally spread over the prepared surface of the metal

When the mercury has evaporated,

the gilded surface is rubbed with a scratch brush of brass wire, until its surface is smooth.