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กระดาษทดสอบ Cobalt ions (Cobalt test paper)

Cobalt test paper Quick and easy determination of cobalt  This test paper allows the quick and easy detection of Cobalt (Co2+). For non-destructive testing of materials apply a drop of acid solution (50 ml hydrogen peroxide 3 % + 7.5 ml o-phosphoric acid 85 % + 5 ml hydrochloric acid 37 %) to the degreased surface. Read More »

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