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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 mineral alunogen .
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.
4) 2 ·12H 2 O. An alum (/ ˈ æ l ə m /) is a type of chemical compound, usually a hydrated double sulfate salt of aluminium with the general formula X Al(SO 4) 2 ·12 H 2 O, such that X is a monovalent cation such as potassium or ammonium. [1] By itself, "alum" often refers to potassium alum, with the formula KAl(SO 4) 2 ·12 H 2 O.
Sodium sulfite – Na 2 SO 3; Sodium tartrate – C 4 H 4 Na 2 O 6; Sodium tellurite – Na 2 TeO 3; Sodium tetrachloroaluminate – NaAlCl 4; Sodium tetrafluoroborate – NaBF 4; Sodium thioantimoniate – Na 3 (SbS 4)·9H 2 O; Sodium thiocyanate – NaSCN; Sodium thiosulfate – Na 2 S 2 O 3; Sodium tungstate – Na 2 WO 4; Sodium uranate ...
A stable derivative of aluminium monoiodide is the cyclic adduct formed with triethylamine, Al 4 I 4 (NEt 3) 4. Also of theoretical interest but only of fleeting existence are Al 2 O and Al 2 S. Al 2 O is made by heating the normal oxide, Al 2 O 3 , with silicon at 1,800 °C (3,272 °F) in a vacuum .
C 7 H 5 Br 3 O: 2,4,6-tribromoanisole: C 7 H 5 Cl 2 NS Chlorthiamide: 1918-13-4 C 7 H 5 Cl 3 O: 2,4,6-trichloroanisole: C 7 H 5 F 3 O: 2,4,6-trifluoroanisole: C 7 H 5 FO 2: 2-fluorobenzoic acid: 445-29-4 C 7 H 5 FO 2: 3-Fluorobenzoic acid: C 7 H 5 FO 2: 4-fluorobenzoic acid: 456-22-4 C 7 H 5 NO 4: quinolinic acid: 89-00-9 dipicolinic acid: 499 ...
It is commonly encountered as the dodecahydrate, KAl(SO 4) 2 ·12H 2 O. It crystallizes in an octahedral structure in neutral solution and cubic structure in an alkali solution with space group Pa 3 and lattice parameter of 12.18 Å. [4] The compound is the most important member of the generic class of compounds called alums, and is often ...
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.