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Zinc chromate, Zn Cr O 4, is a chemical compound, a salt containing the chromate anion, appearing as odorless yellow powder or yellow-green crystals, but, when used for coatings, pigments are often added. [2] [3] [4] It is used industrially in chromate conversion coatings, having been developed by the Ford Motor Company in the 1920s. [5]
Chromate conversion coating or alodine coating is a type of conversion coating used to passivate steel, aluminium, zinc, cadmium, copper, silver, titanium, magnesium, and tin alloys. [ 1 ] : p.1265 [ 2 ] The coating serves as a corrosion inhibitor , as a primer to improve the adherence of paints and adhesives , [ 2 ] as a decorative finish, or ...
The Cronak process is a conventional chromate conversion coating process developed in 1933 by The New Jersey Zinc Company. [1] It involves immersing a zinc or zinc-plated article for 5 to 15 seconds in a chromate solution, typically prepared from sodium dichromate and sulfuric acid. [2]
Cadmium green: a light green pigment consisting of a mixture of cadmium yellow (CdS) and chrome green (Cr 2 O 3). Chromium pigments. Chrome green (PG17): anhydrous chromium(III) oxide (Cr 2 O 3). Viridian (PG18): hydrated chromium(III) oxide Cr 2 O 3 • xH 2 O. Cobalt pigments. Cobalt green: also known as Rinman's green or zinc green (CoZnO 2 ...
Scheele's green was invented in 1775 by Carl Wilhelm Scheele. [2] [3] By the end of the 19th century, it had virtually replaced the older green pigments based on copper carbonate. It is a yellowish-green pigment commonly used during the early to mid-19th century in paints as well as being directly incorporated into a variety of products as a ...
How To Make Your Own Vinaigrette. The ingredients: oil (see my top picks below) acid (vinegar or citrus juice) a sweetener. a thickener. a dash of salt and pepper.