a. the reddish-brown colour of copper b. (as adjective): copper hair 3. Informal any copper or bronze coin 4. any of various small widely distributed butterflies of the genera Lycaena, Heodes, etc., typically having reddish-brown wings: family Lycaenidae Collins Discovery Encyclopedia, ...
Copper(II) chloride, CuCl2 is an anhydrous, brown solid copper salt which is soluble in water and gives a brownish aqueous solution when concentrated. When diluted, the solution changes its colour to green and then blue. CuCl2 is formed when copper(II) oxide, CuO, is treated with hydrochlori...
Copper chloride is also known as cupric chloride, this substance was made by treating copper carbonate with hydrochloric acid. The greenish blue crystals are soluble in water, alcohol, and ether. This halide was added to printing-out and silver bromide emulsions for increased contrast. ...
Copper(II) chloride, CuCl2 is an anhydrous, brown solid copper salt which is soluble in water and gives a brownish aqueous solution when concentrated. When diluted, the solution changes its colour to green and then blue. CuCl2 is formed when copper(II) oxide, CuO, is treated with hydrochlori...
Without GO-CuPc (entry 1), no propylene carbonate (PC) is detected (Table 1). When GO, CuPc, or GO-CuPc is introduced under the same conditions (entries 2–4), PC is obtained, but its yield is low (less than 20%). This result suggests that GO, CuPc and GO-CuPc could ...
Wear dust mask when handling large quantities. Thermal hazards no data available 9.Physical and chemical properties Physical stateRaddish powder ColourReddish, lustrous, ductile, malleable metal OdourOdorless /Copper dusts and mists/ Melting point/ freezing point1083ºC ...
COPPER combines violently with chlorine trifluoride in the presence of carbon [Mellor 2, Supp. 1, 1956]. Is oxidized by sodium peroxide with incandescence [Mellor 2:490-93, 1946-1947]. Forms an unstable acetylide when acetylene is passed over samples that have been heated enough to form an ...
Wear dust mask when handling large quantities. Thermal hazards no data available 9.Physical and chemical properties Physical state Raddish powder Colour Reddish, lustrous, ductile, malleable metal Odour Odorless /Copper dusts and mists/ Melting point/ freezing point 1083\u00baC Boiling point or in...
Inks are subject to high demands in terms of their fastness to light and their colour brilliance. The known magenta inks do not fulfil all of those demands at the same time. For example, although the known inks produce recordings having good fastness to light, the colour shades in such case...
the similarity in colour and flame colour between the bright green coppercarbonate mineralmalachite and the weathered products of such copper-arsenic sulfide minerals as enargite, and it may have been followed later by the purposeful selection ofarseniccompoundsbased on their garlic odour when heated...