... in plastic woven bag,or according to requirement.Characters : Copper oxide is black to brown amorphous powder or crystalline particles (monoclinic ... in water, soluble in acid, ammonia, ammonium chloride, dissolved in sodium hydroxide to produce blue color solution, which leads to hydrogen ... sieve (150um ) ≤ ,%0.10Residue on sieve (300um ) ,≤ %0.10 Copper Oxide