Chromate salts contain the chromate anion, CrO2−4. Dichromate salts contain the dichromate anion, Cr2O2−7. They are oxyanions of chromium in the +6 oxidation...

containing dichromate ions, a yellow solution is obtained due to the formation of chromate ions (CrO2−4). For example, potassium chromate is produced...

potassium and sodium dichromates are very similar. When treated with lead(II) nitrate, it gives an orange-yellow precipitate, lead(II) chromate. Unlike...

around 30 to 35 degrees C Dichromate and chromate salts are oxidizing agents. For the tanning of leather, sodium dichromate is first reduced with sulfur...

Subsequent to its formation, the chromate salt is converted to sodium dichromate, the precursor to most chromium compounds and materials. The industrial route...

line to be drawn on the predominance diagram. Red line Hydrogen chromate and dichromate have equal concentrations. Setting [HCrO−4] equal to [Cr2O2−7]...

solution consisting of 182 g/L sodium dichromate (Na2Cr2O7 · 2H2O) and 6 mL/L concentrated sulfuric acid. The chromate coating process starts with a redox...

create zinc chromate for use in industry. This process is done by putting zinc or a zinc plated metal in a solution of sodium dichromate and sulfuric acid...

Ammonium dichromate is an inorganic compound with the formula (NH4)2Cr2O7. In this compound, as in all chromates and dichromates, chromium is in a +6...

solution formed by the addition of sulfuric acid to aqueous solutions of dichromate. It consists at least in part of chromium trioxide. The term "chromic...

dichromate solution. This is followed by drying and immersion in a 2% aqueous silver nitrate solution. By the same reaction as above, silver chromate...

Chromate or chromat, and their derived terms, may refer to: Chromate and dichromate, ions Monochromate, an ion Trichromate, an ion Tetrachromate, an ion...

temperatures dissolves the chromates and leaves the insoluble iron oxide. The chromate is converted by sulfuric acid into the dichromate. 4 FeCr2O4 + 8 Na2CO3...

chloride and sodium chromate, or from strontium carbonate and sodium dichromate. Strontium chromate is approximately 30 times more soluble in water at 100 °C...

lead chromate are known, orthorhombic and the more stable monoclinic form. Monoclinic lead chromate is used in paints under the name chrome yellow, and many...

sodium dichromate. Sodium chromate is converted into other hexavalent chromium compounds such as chromium trioxide and various salts of chromate and dichromate...

Chromium(VI) compounds are oxidants at low or neutral pH. Chromate anions (CrO2− 4) and dichromate (Cr2O72−) anions are the principal ions at this oxidation...

Barium chromate, is a yellow sand like powder with the formula BaCrO4. It is a known oxidizing agent and produces a green flame when heated, a result...

dichromate) yields the chromate following alkalinisation with caesium hydroxide: Cs2Cr2O7(aq) + 2 CsOH(aq) → 2 Cs2CrO4(aq) + H2O(ℓ) Caesium chromate was...

Ammonium chromate is a salt with the formula (NH4)2CrO4. It forms yellow, monoclinic crystals; made from ammonium hydroxide and ammonium dichromate; used...

Heating with chlorine and carbon yields chromium(III) chloride and carbon monoxide: Cr 2O 3 + 3 Cl 2 + 3 C → 2 CrCl 3 + 3 CO Chromates salts form by the oxidation...

Iron(III) chromate is the iron(III) salt of chromic acid with the chemical formula Fe2(CrO4)3. Iron(III) chromate was discovered by Samuel Hibbert-Ware...

important industrial uses. This chromate can be manufactured as a powder. Before 1940, the literature about magnesium chromate and its hydrates was sparse, but...

dichromic acids and chromium trioxide, pyridinium chlorochromate (PCC), and chromate/dichromate compounds such as Sodium dichromate (Na2Cr2O7) Permanganate...

Calcium chromate is an inorganic compound with the formula CaCrO4, i.e. the chromate salt of calcium. It is a bright yellow solid which is normally found...

Silver dichromate is a chemical compound with the formula Ag2Cr2O7. It is insoluble in water and decomposes when treated with hot water. Its anion has...

lupenone: With tertiary alcohols, the chromate ester formed from PCC can isomerize via a [3,3]-sigmatropic reaction and following oxidation yield an enone...

structures. The prefix pyro is also denoted by the prefix di- . For example, dichromate ion is a dimer. The following tables give additional examples of commonly...

3 CO The hydrated chlorides are prepared by treatment of chromate with hydrochloric acid and aqueous methanol. Slow reaction rates are common with chromium(III)...

solutions of metal chromates or dichromates, such as sodium chromate or potassium dichromate. The generally yellow chromates or orange dichromates turn to dark...