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  2. Ammonium iron(II) sulfate - Wikipedia

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

    Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH 4) 2 SO 4 ·Fe(SO 4)·6H 2 O. Containing two different cations, Fe 2+ and NH + 4, it is classified as a double salt of ferrous sulfate and ammonium sulfate. It is a common laboratory reagent because it is readily crystallized, and crystals resist oxidation ...

  3. Sample preparation in mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Sample_preparation_in_mass...

    Sample preparation for mass spectrometry is used for the optimization of a sample for analysis in a mass spectrometer (MS). Each ionization method has certain factors that must be considered for that method to be successful, such as volume, concentration, sample phase, and composition of the analyte solution.

  4. Salting out - Wikipedia

    en.wikipedia.org/wiki/Salting_out

    Salting out (also known as salt-induced precipitation, salt fractionation, anti-solvent crystallization, precipitation crystallization, or drowning out) [1] is a purification technique that utilizes the reduced solubility of certain molecules in a solution of very high ionic strength.

  5. Double salt - Wikipedia

    en.wikipedia.org/wiki/Double_salt

    Mohr's salt, ammonium iron(II) sulfate, [NH 4] 2 [Fe(H 2 O) 6](SO 4) 2.. A double salt is a salt that contains two or more different cations or anions.Examples of double salts include alums (with the general formula M I M III (SO 4) 2 ·12H 2 O) and Tutton's salts (with the general formula (M I) 2 M II (SO 4) 2 ·6H 2 O). [1]

  6. Standard solution - Wikipedia

    en.wikipedia.org/wiki/Standard_solution

    In analytical chemistry, a standard solution (titrant or titrator) is a solution containing an accurately known concentration.Standard solutions are generally prepared by dissolving a solute of known mass into a solvent to a precise volume, or by diluting a solution of known concentration with more solvent. [1]

  7. Cruet-stand - Wikipedia

    en.wikipedia.org/wiki/Cruet-stand

    Silver cruet stand (1720-23) A cruet-stand (or cruet in British English) is a small stand of metal, ceramic, or glass which holds containers for condiments.Typically these include salt and pepper shakers, and often cruets or bottles of vinegar and olive oil.

  8. Tutton's salt - Wikipedia

    en.wikipedia.org/wiki/Tutton's_salt

    Tutton's salts are a family of salts with the formula M 2 M'(SO 4) 2 (H 2 O) 6 (sulfates) or M 2 M'(SeO 4) 2 (H 2 O) 6 (selenates). These materials are double salts, which means that they contain two different cations, M + and M' 2+ crystallized in the same regular ionic lattice. [1]

  9. Salt and pepper shakers - Wikipedia

    en.wikipedia.org/wiki/Salt_and_pepper_shakers

    Salt and pepper shakers, along with a sugar dispenser Georgian silver pepper shaker, or pepperette, hallmarked London 1803. Salt and pepper shakers or salt and pepper pots, of which the first item can also be called a salt cellar in British English, [1] are condiment dispensers used in European cuisine that are designed to allow diners to distribute grains of edible salt and ground peppercorns.

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