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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
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.
Alpersite (IMA symbol: Aps [1]) is a magnesium copper sulfate mineral with the chemical formula (Mg,Cu)[SO 4]·7H 2 O. It is named after United States Geological Survey geochemist Charles N. Alpers and was first described in 2006. [2]
The divalent cation can be magnesium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc or cadmium. In addition to sulfate and selenate, the divalent anion can be chromate (CrO 4 2−), tetrafluoroberyllate (BeF 4 2−), hydrogenphosphate (HPO 4 2−) [2] or monofluorophosphate (PO 3 F 2−).
Fehrite is a hydroxyl-bearing, hydrated, copper-magnesium sulfate mineral approved by the International Mineralogical Association as a new species in 2019, [1] and formally described in 2021 from specimens obtained from the Casualidad mine, located near Baños de Sierra Alhamilla, in Pechina (Almería), Spain, which is consequently the type locality.
Magnesium sulfate or magnesium sulphate is a chemical compound, a salt with the formula MgSO 4, consisting of magnesium cations Mg 2+ (20.19% by mass) and sulfate anions SO 2− 4. It is a white crystalline solid , soluble in water but not in ethanol .