P O T B ~ S I U J IL.IURbTE;-POTrlbbII'Jf
SILICATE bTbTElI
1143
SOLUBILITY STL-DY OF *4K aiQUEOUS POTASSIUJI
T , S ~ - R - ~ T E - P O T , ~ S SsI C 1 ~r~x~L nSYSTEM ~ R N I MILD I'ir 2 lcctlclpli i ( i
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nriz Cum put1 ij, I'ii 1 larlelpiiz (1
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Recezved Febi u a r y 20, 1348
Interest in the addition of a potassium silicate to liquid soap products to influence viscosity and to provide increased detergency a t loiver cost stimulated Lliis study of the solubilities of potassium Iaiuate in ayueou5 potassium silicate. scilutions. The particular potassium silicate used had a silica-to-potassium osidc ratio by n-eight of 2.04, corresponding to the molecular formula KDO'3.21Si02. Potassium laurate concentrations to 56 per cent, potassium silicate concentrations to 34 per cent, ancl temperatures to 1SO"C.were studied. The binary system, I)otassium laurate-water, has been partially investigated in :L phaw stildy by JTcRain and Field ( 2 ) . No phase study of the system T
