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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.
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.
Sodium perchlorate is an inorganic compound with the chemical formula Na Cl O 4.It consists of sodium cations Na + and perchlorate anions ClO − 4.It is a white crystalline, hygroscopic solid that is highly soluble in water and ethanol.
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
Pb → ν + 208 Pb * CC, NC Lead (79 t) and 3 He: High-Z ≈10 MeV Creighton Mine, Ontario: 2012– HERON Helium Roton Observation of Neutrinos LS ν e (mainly) ν e + e − → ν e + e −: NC Superfluid He: Rotational excitation 1 MeV future: HOMESTAKE–CHLORINE: Homestake chlorine experiment S ν e: 37 Cl + ν e → 37 Ar * + e − 37 Ar ...
K 2 CO 3; Pearlash – formed by baking potash in a kiln. Milk of sulfur (lac sulphuris) – formed by adding an acid to thion hudor (lime sulfur). Natron/soda ash/soda – sodium carbonate. Na 2 CO 3; Nitrum flammans – ammonium nitrate. Sugar of lead – lead(II) acetate, formed by dissolving lead oxide in vinegar.
Lead(II) sulfate is poorly soluble, as can be seen in the following diagram showing addition of SO 2− 4 to a solution containing 0.1 M of Pb 2+. The pH of the solution is 4.5, as above that, Pb 2+ concentration can never reach 0.1 M due to the formation of Pb(OH) 2. Observe that Pb 2+ solubility drops 10,000 fold as SO 2− 4 reaches 0.1 M.
NaPb 3, NaPb, Na 9 Pb 4, Na 5 Pb 2, and Na 15 Pb 4 are some of the known sodium-lead alloys. Sodium also forms alloys with gold (NaAu 2) and silver (NaAg 2). Group 12 metals (zinc, cadmium and mercury) are known to make alloys with sodium. NaZn 13 and NaCd 2 are alloys of zinc and cadmium. Sodium and mercury form NaHg, NaHg 4, NaHg 2, Na 3 Hg 2 ...