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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 ...
1.270 360 367 764 71 × 10 43: C 94 H 190: n-tetranonacontane 95 3.805 183 607 080 38 × 10 37: 4.067 077 501 894 60 × 10 43: C 95 H 192: n-pentanonacontane 96 1.043 636 645 610 59 × 10 38: 1.302 439 806 727 44 × 10 44: C 96 H 194: n-hexanonacontane 97 2.863 129 768 368 50 × 10 38: 4.172 055 713 266 37 × 10 44: C 97 H 196: n ...
Aluminium diboride – AlB 2 [9] [10] Aluminium bromide – AlBr 3 [11] Aluminium carbide – Al 4 C 3 [12] Aluminium iodide – AlI 3 [13] Aluminium nitride – AlN [14] Aluminium oxide – Al 2 O 3 [15] Aluminium phosphide – AlP [16] Aluminium chloride – AlCl 3 [17] Aluminium fluoride – AlF 3 [18] Aluminium hydroxide – Al(OH) 3 [19 ...
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 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]).
[16] [d] [10]: 766 The composition of common alum was determined finally by Louis Vauquelin in 1797. As soon as Martin Klaproth discovered the presence of potassium in leucite and lepidolite , [ 17 ] [ 18 ] [ e ] Vauquelin demonstrated that common alum is a double salt , composed of sulfuric acid, alumina, and potash. [ 19 ]
Aluminium trichloride (AlCl 3) has a layered polymeric structure below its melting point of 192.4 °C (378 °F), but transforms on melting to Al 2 Cl 6 dimers with a concomitant increase in volume by 85% and a near-total loss of electrical conductivity
Atomicity is the total number of atoms present in a molecule of an element. For example, each molecule of oxygen (O 2) is composed of two oxygen atoms.Therefore, the atomicity of oxygen is 2.