Black Copper Oxide

We are offering Black Copper Oxide.
specifications

black powder
copper oxide 98%min
ceramics grade/electroolating of electricity plate/stainer for glass,ceramic,porcelain

copper oxide black



1.electroplating grade



cuo----------98.5%min

zn------------200ppm max

fe------------100ppm max

pb------------60ppm max

cl-------------100ppm max



acid-insoluble ------0.01% max



2.electronic grade



cuo----------98%min

hydrochloric acid insoluble-----------0.2%max

water soluble matter---------------0.1%max

cl-------------0.2%max

so-------------0.2%max

cd-------------5ppm max

pb-------------100ppm max

hg------------2ppm max

cr vi---------2ppm max



3,industrial grade



cuo----------98%min

so-----------0.2% max

cl------------0.2%max

water soluble matter------------0.1%max

hydrochloric acid insoluble-----------0.2%max



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