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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.
Chromium compounds are compounds containing the element chromium (Cr). Chromium is a member of group 6 of the transition metals . The +3 and +6 states occur most commonly within chromium compounds, followed by +2; charges of +1, +4 and +5 for chromium are rare, but do nevertheless occasionally exist.
Cs 2 Cr 2 O 7: caesium dichromate: 13530-67-1 Cs 2 HPO 4: caesium hydrogen orthophosphate: Cs 2 MoO 4: caesium molybdate: 13597-64-3 Cs 2 O: caesium oxide: 20281-00-9 Cs 2 SO 3: caesium sulfite: Cs 2 SO 4: caesium sulfate: 10294-54-9 Cs 2 SiO 3: caesium metasilicate: 15586-77-3 Cs 2 TeO 4: caesium tellurate: 34729-54-9 Cs 2 TiO 3: caesium ...
A general formula for such cyclic compounds is [HPO 3] x where x = number of phosphoric units in the molecule. When metaphosphoric acids lose their hydrogens as H +, cyclic anions called metaphosphates are formed. An example of a compound with such an anion is sodium hexametaphosphate (Na 6 P 6 O 18), used as a sequestrant and a food additive.
Ammonium dichromate – [NH 4] 2 Cr 2 O 7 [42] Ammonium dihydrogen phosphate – [NH 4]H 2 PO 4; Ammonium hexafluoroaluminate – AlF 6 H 12 N 3 [43] Ammonium hexafluorophosphate – F 6 H4 NP [44] Ammonium hexachloroplatinate – [NH 4] 2 [PtCl 6] [45] Ammonium hexafluorosilicate [46] Ammonium hexafluorotitanate [47] Ammonium ...
Phosphorus comprises 0.1% by mass of the average rock [12] (while, for perspective, its typical concentration in vegetation is 0.03% to 0.2%), [13] and consequently there are quadrillions of tons of phosphorus in Earth's 3×10 19-ton crust, [14] albeit at predominantly lower concentration than the deposits counted as reserves, which are ...
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List of compounds with carbon number 23; List of compounds with carbon number 24; List of compounds with carbon numbers 25–29; List of compounds with carbon numbers 30–39; List of compounds with carbon numbers 40–49; List of compounds with carbon numbers 50+ List of capsaicinoids; List of chemical compounds with unusual names; List of ...