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  2. Copper(II) sulfate - Wikipedia

    en.wikipedia.org/wiki/Copper(II)_sulfate

    Copper(II) sulfate is an inorganic compound with the chemical formula Cu SO 4.It forms hydrates CuSO 4 ·nH 2 O, where n can range from 1 to 7. The pentahydrate (n = 5), a bright blue crystal, is the most commonly encountered hydrate of copper(II) sulfate, [10] while its anhydrous form is white. [11]

  3. Magnesium sulfate - Wikipedia

    en.wikipedia.org/wiki/Magnesium_sulfate

    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 .

  4. Magnesium compounds - Wikipedia

    en.wikipedia.org/wiki/Magnesium_compounds

    Except for magnesium fluoride, the halides are easily soluble in water, but the solubility of magnesium fluoride is higher than that of other alkaline earth metal fluorides. High-purity magnesium fluoride is produced industrially by the reaction of magnesium sulfate and sodium fluoride, which sublimates at 1320 °C.

  5. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions.

  6. Alpersite - Wikipedia

    en.wikipedia.org/wiki/Alpersite

    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]

  7. Metal aquo complex - Wikipedia

    en.wikipedia.org/wiki/Metal_aquo_complex

    Most aquo complexes are mono-nuclear, with the general formula [M(H 2 O) 6] n+, with n = 2 or 3; they have an octahedral structure. The water molecules function as Lewis bases, donating a pair of electrons to the metal ion and forming a dative covalent bond with it. Typical examples are listed in the following table.

  8. Tutton's salt - Wikipedia

    en.wikipedia.org/wiki/Tutton's_salt

    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−).

  9. Sulfate attack in concrete and mortar - Wikipedia

    en.wikipedia.org/wiki/Sulfate_attack_in_concrete...

    Solutions containing magnesium sulfate are generally more aggressive, for the same concentration. This is because magnesium also takes part in the reactions, replacing calcium in the solid phases with the formation of brucite (magnesium hydroxide) and magnesium silicate hydrates. The displaced calcium precipitates mainly as gypsum.