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Strontium chromate is approximately 30 times more soluble in water at 100 °C than at room temperature. Therefore, the yellow strontium chromate can be suspended in a hot solution of a soluble sulfate to digest until fully converted to the much less soluble and white strontium sulfate, leaving the chromate or dichromate in solution.
A perchlorate is a chemical compound containing the perchlorate ion, ClO − 4, the conjugate base of perchloric acid (ionic perchlorate).As counterions, there can be metal cations, quaternary ammonium cations or other ions, for example, nitronium cation (NO + 2).
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. [ notes 1 ] The chromate ion is the predominant species in alkaline solutions, but dichromate can become the predominant ion in acidic solutions.
Strontium perchlorate is a white powder or colorless crystals with the formula Sr(ClO 4) 2.. It is a strong oxidizer which gives red flames.It can be used in pyrotechnics; however, usually the more common strontium nitrate is used.
2 O 8 Zn Molar mass: 261.826 Appearance colorless solid ... Zinc perchlorate is the inorganic compound with the chemical formula Zn(ClO 4) 2 which forms the ...
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Copper(II) perchlorate is an inorganic compound with the chemical formula Cu(ClO 4) 2 (H 2 O) x.The anhydrous solid is rarely encountered but several hydrates are known. Most important is the perchlorate salt of the aquo complex copper(II) perchlorate hexahydrate, [Cu(H 2 O) 6] 2+.
Ammonium chromate is a salt with the formula (NH 4) 2 CrO 4. It forms yellow, monoclinic crystals; made from ammonium hydroxide and ammonium dichromate; used in photography as a sensitizer for gelatin coatings. It is often used in photography, textile printing, and fixing chromate dyes on wool. It is also used as an analytical reagent, catalyst ...