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          Chromic Oxide

          1. Specification: Coincide with standard Q/(HG) RM10-2002

          Item Index
          Premium grade First grade Second grade
          Chromium as Cr2O3 % min 99.0 98.0 97.0
          Colority (compare to the standard sample) * Match the standard
          Staining (compare to the standard sample) * % min 95 95 -
          Oil absorption (g/100g) max 20 25 -
          Hiding power (g/cm2 ) max 15 15 -
          Soluble material content % max 0.3 0.5 0.5
          Sieve residue % 50 μm max 0.2 0.5 -
          70 μm max - - 0.5
          Moisture % max 0.2 0.3 0.5
          Soluble dichromate content (as Cr2O3 ) % max 0.10 0.10 0.10

          Remark: " * " is referenced with negotiation.

          2. Usage
          As a basic pigment, it is widely used in ceramics, construction, enamel, paint and printing ink. It is also used in polish and grinding as an abrasive.


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