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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. Copper compounds - Wikipedia

    en.wikipedia.org/wiki/Copper_compounds

    Copper forms a rich variety of compounds, usually with oxidation states +1 and +2, which are often called cuprous and cupric, respectively. [1] Copper compounds , whether organic complexes or organometallics , promote or catalyse numerous chemical and biological processes.

  4. Copper(I) sulfate - Wikipedia

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

    Copper(I) sulfate, also known as cuprous sulfate, is an inorganic compound with the chemical formula Cu 2 SO 4. It is a white solid, in contrast to copper(II) sulfate, which is blue in hydrous form. Compared to the commonly available reagent, copper(II) sulfate, copper(I) sulfate is unstable and not readily available. [1]

  5. Chalcanthite - Wikipedia

    en.wikipedia.org/wiki/Chalcanthite

    Chalcanthite (from Ancient Greek χάλκανθον (khálkanthon), from χαλκός (khalkós) 'copper' and ἄνθος (ánthos) 'flower, bloom') is a richly colored blue-green water-soluble sulfate mineral CuSO 4 ·5H 2 O. It is commonly found in the late-stage oxidation zones of copper deposits. Due to its ready solubility, chalcanthite is ...

  6. Pyrotechnic colorant - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_colorant

    Copper sulfate: CuSO 4 ·5 H 2 O Can be used with nitrates and perchlorates. Acidic, incompatible with chlorates. With red phosphorus in presence of moisture liberates heat, may spontaneously ignite. Less expensive than copper acetoarsenite. Anhydrous copper sulfate is hygroscopic, can be used as a desiccant.

  7. Chen-Kao reaction - Wikipedia

    en.wikipedia.org/wiki/Chen-Kao_reaction

    The Chen-Kao test is performed by creating an acidic solution of the compound to be tested and adding dilute Copper (II) Sulfate and Sodium hydroxide solutions. The procedure is as follows: Place small amount of material to be tested on a spot plate. Add 2 drops of reagent A; Add 2 drops of reagent B; Add 2 drops of reagent C

  8. Biuret test - Wikipedia

    en.wikipedia.org/wiki/Biuret_test

    The biuret reagent is made of sodium hydroxide (NaOH) and hydrated copper(II) sulfate, together with potassium sodium tartrate, [7] the latter of which is added to chelate and thus stabilize the cupric ions. The reaction of the cupric ions with the nitrogen atoms involved in peptide bonds leads to the displacement of the peptide hydrogen atoms ...

  9. Copper pesticide - Wikipedia

    en.wikipedia.org/wiki/Copper_pesticide

    Copper pesticide is applied as a contact protective foliar spray, so it remains deposited on leaf surfaces. A small concentration of copper ions may be taken up by plants as essential nutrients. Copper foliar sprays are also applied to correct plant copper deficiency. [8] Excess absorbed copper ions can kill sensitive cells in copper sensitive ...