Mercury silvering Mercury silvering Mercury silvering or fire gilding is a silvering technique for applying a thin layer of precious metal such as silver or gold (mercury gilding) to a base metal object. The process was invented during the Middle Ages and is documented in Vannoccio Biringuccio's 1540 book "De la pirotechnia". An amalgam of mercury and the precious metal is prepared and applied to the object which is then heated, sometimes in oil, vaporizing most of the mercury. The technique is dangerous since mercury is highly toxic, especially in its vapor phase. Mercury silvering can be detected through a variety of
Trifluoroacetyl chloride magnesium, mercury, silver, or cadmium. When trifluoroacetyl chloride also reacts with ketene and esterification yields occur, the resulting reaction forms trifluoroacetoacetate esters. Trifluoroacetyl chloride also reacts with soil, cellulose-based absorbents, and clay-based absorbents. When the compound reacts with water in contact with metal, hydrogen gas, which is explosive, is produced. The compound forms a clustering reaction with a methyl group (CH). Trifluoroacetyl chloride can be produced by catalytic chlorination of chlorine and trifluoroacetaldehyde. The compound can also be produced if halothane is oxidized using CYP2E1. This is also done with CYP2A6 instead of CPY2E1, but less readily. Trifluoroacetyl chloride's applications