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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]
Infobox references. 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.
Infobox references. Copper (I) sulfide is a copper sulfide, a chemical compound of copper and sulfur. It has the chemical compound Cu 2 S. It is found in nature as the mineral chalcocite. It has a narrow range of stoichiometry ranging from Cu 1.997 S to Cu 2.000 S. [4] Samples are typically black.
Copper is one of the most important constituents of silver and karat gold solders used in the jewelry industry, modifying the color, hardness and melting point of the resulting alloys. [53] Some lead-free solders consist of tin alloyed with a small proportion of copper and other metals. [54]
Copper monosulfide is a chemical compound of copper and sulfur. It was initially thought to occur in nature as the dark indigo blue mineral covellite. However, it was later shown to be rather a cuprous compound, formula Cu3S (S2). [4] CuS is a moderate conductor of electricity. [5]
In contrast potassium is near the top of the reactivity series, and potassium sulfate (K 2 SO 4) does not decompose at its melting point of about 1,069 °C (1,342 K; 1,956 °F), nor even at its boiling point.
Melting point: 680 °C (1,256 °F; 953 K) ... The name copperas dates from times when the copper(II) sulfate was known as blue copperas, and perhaps in analogy, iron ...
Copper(II) carbonate or cupric carbonate is a chemical compound with formula CuCO 3. At ambient temperatures, it is an ionic solid (a salt) consisting of copper(II) cations Cu 2+ and carbonate anions CO 2− 3. This compound is rarely encountered because it is difficult to prepare [2] and readily reacts with water moisture from the air.
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