bichromate


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bichromate

[‚bī′krō‚māt]
(inorganic chemistry)
References in periodicals archive ?
The most common allergens in our study in total on patch testing were potassium bichromate (30%) and paraben mix (30%), followed by nickel sulphate (21%), epoxy resin (17%) and fragrance mix (17%).
The method was based on oxidation of substances with potassium bichromate in concentrated sulphuric acid, and subsequent conversion of the bichromate used to its oxygen equivalent and related caloric value.
Most early photomechanical processes, including collotype or Woodbury-type, used the hardening properties of potassium bichromate upon exposure to light in order to create a printable pattern.
The gum bichromate process was executed by brushing a coating of gum arabic dissolved in water and then mixed with pigment and a solution of potassium bichromate onto a sheet of paper.
Imported basic materials are mainly chemicals not yet produced in the country such as soda ash, sodium bichromate, aluminum hydroxide, sodium sulfate, etc.
Chrome dyes: A synthetic dyes that use potassium bichromate to form a permanent bond between the yarn and the dye.
Technological Innovations II-17 RUSAL Develops Soda Ash from Nepheline Syenite II-17 FMC Introduces AbsorptaPlus II-17 The Bicar Method II-17 Champion International's BFR Process II-17 Electrolytical Conversion of Sodium Chromate to Sodium Bichromate II-17 Busan 1130 - A New Leather Treatment Bactericide II-17 Recovery of Strontium Carbonate II-17
His association with Stieglitz had such impact, however, that he would promptly abandon his painting studies at the Academie Julian to pursue photography and the new gum bichromate process, the precursor to colored photography.
We all experimented in various ways with the photographic printing technique--gum bichromate and all began by making sheets of porcelain on which to print.
In The Seen and UnseenWorld of McDermott & McGough, 1907, 1998, a bluish-tinted gum bichromate, the two artists, dressed in top hats, one of them carrying flowers, appear ready to enter high society.
The book, with text by Mark Alice Durant, documents photographers David McDermott and Peter McGough's explorations of a number of historical photographic processes, including gum bichromate, cyanotype, platinum palladium and salt printing.