... lower cost than caustic soda Ca(OH)2 / Hydrated lime for tanning Hydrated LimeSynonyms: calcium hydroxide,slaked lime,lime powder ,Ash ... Calcium PowderFeatures 1. Lower cost for water treatment 2. Widely range of application 3. Aid ... 1. Mainly adjust acid waste water PH value, widely used for electroplate, Chemical industry, circuit board, pickling, printing & dyeing and ...