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Aluminium sulfate is rarely, if ever, encountered as the anhydrous salt. It forms a number of different hydrates, of which the hexadecahydrate Al 2 (SO 4) 3 ·16H 2 O and octadecahydrate Al 2 (SO 4) 3 ·18H 2 O are the most common. The heptadecahydrate, whose formula can be written as [Al(H 2 O) 6] 2 (SO 4) 3 ·5H 2 O, occurs naturally as the ...
Sodium aluminate is an inorganic chemical that is used as an effective source of aluminium hydroxide for many industrial and technical applications. Pure sodium aluminate is a white crystalline solid having a formula variously given as NaAlO 2, NaAl(OH) 4 (), [3] Na 2 O·Al 2 O 3, or Na 2 Al 2 O 4.
AlCl 3: −705.63 Aluminium oxide: Solid Al 2 O 3: −1675.5 Aluminium hydroxide: Solid Al(OH) 3: −1277 Aluminium sulphate: Solid Al 2 (SO 4) 3: −3440 Barium chloride: Solid BaCl 2: −858.6 Barium carbonate: Solid BaCO 3: −1216 Barium hydroxide: Solid Ba(OH) 2: −944.7 Barium oxide: Solid BaO −548.1 Barium sulfate: Solid BaSO 4: − ...
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.
Some mixed oxide phases are also very useful, such as spinel (MgAl 2 O 4), Na-β-alumina (NaAl 11 O 17), and tricalcium aluminate (Ca 3 Al 2 O 6, an important mineral phase in Portland cement). [13] The only stable chalcogenides under normal conditions are aluminium sulfide (Al 2 S 3), selenide (Al 2 Se 3), and telluride (Al 2 Te 3).
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
Sodium aluminium sulfate is the inorganic compound with the chemical formula NaAl(SO 4) 2 ·12H 2 O (sometimes written Na 2 SO 4 ·Al 2 (SO 4) 3 ·24H 2 O). Also known as soda alum, sodium alum, or SAS, this white solid is used in the manufacture of baking powder and as a food additive. Its official mineral name is alum-Na (IMA symbol: Aum-Na [3]).
2 (SO 4) 4 ·22 H 2 O, NaAl(SO 4) 2 ·6 H 2 O, MgSO 4 ·7H 2 O and Al 2 (SO 4) 3 ·17 H 2 O. [3] [4] The Ancient Greek Herodotus mentions Egyptian alum as a valuable commodity in The Histories. [5] The production of potassium alum from alunite is archaeologically attested on the island Lesbos. [6]