Chemical formula: Cu2(OH)2CO3 (Cu(OH)2.CuCO3)
Synonyms: copper carbonate, copper hydroxy carbonate, cupric hydroxy carbonate, copper (II) hydroxy carbonate, Malachite (mineral), verdigris pigment
Amount: 200 g
Appearance and odour: fine green-grey powder without appreciable odour
Packaging: professional wide necked, white HDPE bottle with blue conical seal cap and tamper ring. Labelled. Bottle and cap are UN approved and reusable.
Description and uses: copper basic carbonate finds uses as a pottery glaze pigment (green) and as a fungicide.
It contains 70 w% copper (as CuO).
For chemists this is a precursor to most other copper salts, as it dissolves readily and completely in most acids, with liberation of carbon dioxide.
On strong heating it loses both carbon dioxide and water, leaving behind black CuO.
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