Inhibition of the staining of porcelain surfaces by manganese

Details Inhibition of the staining of porcelain surfaces by manganese Inhibition of the staining of porcelain surfaces by manganese

C - Chemistry, Metallurgy

11

D

134/5.2, 4/17.7

C11D 3/395 (2006.01) C02F 1/64 (2006.01) C02F 5/08 (2006.01)

Patent

CA 1219184

Abstract: Method, composition and article of manufacture to inhibit the staining of water-contacting surfaces, such as those in a toilet bowl, which is caused by manganese present in household water in the presence of an oxidiz- ing material. Manganese staining is inhibited by supply- ing to the water 0.05 ppm to 10 ppm of a glassy phosphate having the formula MO(MPO3)nM wherein M is sodium or potassium and n is an integer of from about 6 to about 21.

440099

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