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The trihydrate salt is obtained as a reddish-brown precipitate by adding two equivalents of potassium cyanide to a cobalt salt solution: [3]. CoCl 2 (H 2 O) 6 + 2 KCN → Co(CN) 2 + 2 KCl + 6 H 2 O
Zinc cyanide is the inorganic compound with the formula Zn 2. It is a white solid that is used mainly for electroplating zinc but also has more specialized applications for the synthesis of organic compounds .
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
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name formula formula weight charge oxidation state comment reference Tetracyanidoborate [B(CN) 4] − −1 +3 [7]Hexacyanidosilicate Si(CN) 6 2– −2 +4 [8]Tetracyanotitanate(II)
The chromate coating acts as paint does, protecting the zinc from white corrosion, thus making the part considerably more durable, depending on the chromate layer's thickness. [ 8 ] [ 9 ] [ 10 ] The protective effect of chromate coatings on zinc is indicated by color, progressing from clear/blue to yellow, gold, olive drab and black.
Cobalt powder reacts with ammonia to form two kinds of nitrides, Co 2 N and Co 3 N. Cobalt reacts with phosphorus or arsenic to form Co 2 P, CoP, [2] CoP 2, [6] CoAs 2 and other substances. [2] The former three compounds are of interest as catalysts for water electrolysis .
Zinc compounds are chemical compounds containing the element zinc which is a member of the group 12 of the periodic table. The oxidation state of zinc in most compounds is the group oxidation state of +2. Zinc may be classified as a post-transition main group element with zinc(II). Zinc compounds are noteworthy for their nondescript appearance ...