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Gel-like chromium(III) phosphate is prepared through the reduction of ammonium dichromate, (NH 4) 2 Cr 2 O 7, using ethanol, CH 3 COOH, and nitric acid, HNO 3.This process is done in the presence of ammonium dihydrogen phosphate and urea at an elevated temperature where tetradecyltrimethylammonium bromide (TTBr) is used as structure directing agent.
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
A tetrahedral coordination of chromium(III) has been reported for the Cr-centered Keggin anion [α-CrW 12 O 40] 5–. [11] Chromium(III) hydroxide (Cr(OH) 3) is amphoteric, dissolving in acidic solutions to form [Cr(H 2 O) 6] 3+, and in basic solutions to form [Cr(OH) 6] 3−. It is dehydrated by heating to form the green chromium(III) oxide ...
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.
Potassium bromate – KBrO 3 ... Chromium(III) oxide – Cr 2 O 3; Chromium ... Strontium hydrogen phosphate – SrHPO 4; Strontium hydroxide – Sr ...
Chrome alum or Chromium(III) potassium sulfate is the potassium double sulfate of chromium. Its chemical formula is KCr(SO 4 ) 2 and it is commonly found in its dodecahydrate form as KCr(SO 4 ) 2 ·12(H 2 O).
Red dye No. 3, among other additives, has been banned in California under a new law. The additive appears in thousands of products, including candies and some medications.
chromium(III) iodide: 13569–75–0 CrI 4: chromium(IV) iodide: 23518–77–6 CrN: chromium(III) nitride: 12053–27–9 Cr(NO 3) 3: chromium(III) nitrate: 13548–38–4 CrO 2: chromium(IV) oxide: 12018–01–8 CrO 3: chromium(VI) oxide: 1333–82–0 CrPO 4: chromium(III) phosphate: 7789–04–0 CrSe: chromium(II) selenide: 12053–13–3 ...