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Predominance diagram for chromate. In aqueous solution, chromate and dichromate anions exist in a chemical equilibrium.. 2 CrO 2− 4 + 2 H + ⇌ Cr 2 O 2− 7 + H 2 O. The predominance diagram shows that the position of the equilibrium depends on both pH and the analytical concentration of chromium.
Chemical formula. Fe 2 (CrO 4) 3 Molar mass: 459.6808 g/mol Appearance ... Iron(III) chromate is the iron(III) salt of chromic acid with the chemical formula Fe 2 ...
Potassium chromate is the inorganic compound with the formula K 2 CrO 4. This yellow solid is the potassium salt of the chromate anion. It is a common laboratory chemical, whereas sodium chromate is important industrially.
Sodium chromate is the inorganic compound with the formula Na 2 CrO 4. It exists as a yellow hygroscopic solid, which can form tetra-, hexa-, and deca hydrates . It is an intermediate in the extraction of chromium from its ores.
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]
Chemical formula. H 2 CrO 4 (chromic acid) H 2 Cr 2 O 7 ... Chromate and dichromate: ... many have discontinued use of this chemical in their repair shops.
Silver chromate is an inorganic compound with formula Ag 2 CrO 4 which appears as distinctively coloured brown-red crystals. The compound is insoluble and its precipitation is indicative of the reaction between soluble chromate and silver precursor salts (commonly potassium / sodium chromate with silver nitrate ).
silver chromate: 7784-01-2 Ag 2 Cr 2 O 7: silver dichromate: 7784-02-3 Ag 2 F: silver subfluoride: 1302-01-8 ... Chemical formula Synonyms CAS number FGa: gallium ...