Chrome pigments

Details Chrome pigments Chrome pigments

C - Chemistry, Metallurgy

09

C

6/194

C09C 1/34 (2006.01) C09C 1/20 (2006.01) C09C 3/06 (2006.01)

Patent

CA 1096107

Ds.28997 ABSTRACT OF THE DISCLOSURE This invention relates to a process for the manufacture of an improved chrome yellow pigment which comprises the simultaneous treatment of an aqueous suspension of a chrome yellow pigment with two treating agents which are (i) metaphosphoric acid or a water-soluble salt thereof and (ii) a water-soluble cerous salt. The treated pigment has improved resistance to sulphur dioxide and is particularly useful in the manufacture of industrial paints.

283766

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