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Lead perchlorate trihydrate is produced by the reaction of lead(II) oxide, lead carbonate, or lead nitrate by perchloric acid: . Pb(NO 3) 2 + HClO 4 → Pb(ClO 4) 2 + HNO 3. The excess perchloric acid was removed by first heating the solution to 125 °C, then heating it under moist air at 160 °C to remove the perchloric acid by converting the acid to the dihydrate.
CoSO 4 + Ba(ClO 3) 2 → BaSO 4 + Co(ClO 3) 2 It is also possible to make it by the reaction of any chlorate with a cobalt(II) salt, however the pure product is harder to separate. References
Ca(ClO 3) 2 + 2 KCl → 2 KClO 3 + CaCl 2. This is the second step of the Liebig process for the manufacture of potassium chlorate. [2] Solutions of calcium chlorate react with solutions of alkali carbonates to give a precipitate of calcium carbonate and the alkali chlorate in solution: Ca(ClO 3) 2 + Na 2 CO 3 → 2 NaClO 3 + CaCO 3
It is then converted to the ammonium salt (NH 4) 2 PbCl 6 by adding ammonium chloride (NH 4 Cl). Finally, the solution is treated with concentrated sulfuric acid H 2 SO 4, to separate out lead tetrachloride. This series of reactions is conducted at 0 °C. The following equations illustrate the reaction: PbCl 2 + 2HCl + Cl 2 → H 2 PbCl 6
Barium chlorate, Ba(ClO 3) 2, is the barium salt of chloric acid. It is a white crystalline solid , and like all soluble barium compounds, irritant and toxic. It is sometimes used in pyrotechnics to produce a green colour .
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.
2 is commonly synthesized via a precipitation reaction between potassium iodide KI and lead(II) nitrate Pb (NO 3) 2 in water solution: Pb(NO 3) 2 + 2 KI → PbI 2 + 2 KNO 3. While the potassium nitrate KNO 3 is soluble, the lead iodide PbI 2 is nearly insoluble at room temperature, and thus precipitates out. [17]