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Zinc carbonate is the inorganic compound with the formula ZnCO 3. It is a white solid that is insoluble in water. ... Color code: red = O, green = Zn. Zinc carbonate ...
Zinc is a strong reducing agent with a standard redox potential of −0.76 V. Pure zinc tarnishes rapidly in air, rapidly forming a passive layer. The composition of this layer can be complex, but one constituent is probably basic zinc carbonate, Zn 5 (OH) 6 CO 3. [8] The reaction of zinc with water is slowed by this passive layer.
Smithsonite, also known as zinc spar, is the mineral form of zinc carbonate (Zn CO 3). Historically, smithsonite was identified with hemimorphite before it was realized that they were two different minerals. The two minerals are very similar in appearance and the term calamine has been used for both, leading to some confusion.
Zinc white is an inorganic pigment composed of zinc oxide that has been used by painters since the late eighteenth century. [1] Alongside lead and titanium white , it is among the three most prominent white pigments that are commercially available today. [ 1 ]
A variety of zinc compounds are commonly used, such as zinc carbonate and zinc gluconate (as dietary supplements), zinc chloride (in deodorants), zinc pyrithione (anti-dandruff shampoos), zinc sulfide (in luminescent paints), and dimethylzinc or diethylzinc in the organic laboratory.
Cobalt green: also known as Rinman's green or zinc green (CoZnO 2). Copper pigments. Malachite: cupric carbonate hydroxide (Cu 2 CO 3 (OH) 2). Scheele's Green (also called Schloss green): cupric arsenite (CuHAsO 3). Brunswick green: various pigments, some with copper; Other pigments
Brown or black can be used as a base color for copper patina. If the amount of chlorides decreases the color will be more bluish-green, if carbonate decreases, more yellow-[27] Black for copper. Solution of sodium polysulfide 2.5%, items must be submerged in the solution after color developing, wash, dry and wax or varnish colored object. [28]
A carbonate is a salt of carbonic acid, (H 2 CO 3), [2] characterized by the presence of the carbonate ion, a polyatomic ion with the formula CO 2− 3. The word "carbonate" may also refer to a carbonate ester , an organic compound containing the carbonate group O=C(−O−) 2 .