Procedure to improve the solidity to the light, in the weather and mainly to the sulfurous anhydroid, of the pigments based on cromato of pb, sulfocromatos of pb, molibdosulfocromatos of pb. (Machine-translation by Google Translate, not legally binding)

摘要

SOLIDIFICATION PROCEDURE FOR PIGMENTS BASED ON PB CHROMATE, PB SULPHONATES, PB MOLIBOSULFOCROMATES. IT CONSISTS IN THE PREVIOUS OBTAINING OF SOLUBLE SALTS OF ANTIMONY IONS FOR ITS USE SYNERGISTICALLY WITH A SIO2 IN THE FORM OF SIO3NA2 AND WITH ANOTHER CALCIUM ION, CARRYING OUT A FIRST NEUTRALIZATION WITH HYDROXIDE, UP TO A PH 3.5 TO 4 ANOTHER UNTIL A PH NEAR7, AFTER THE INCORPORATION OF A12O3 AND PO4NA3. THE SUSPENSION OF PIGMENT TO STABILIZE, PRECIPITATED IN A CONVENTIONAL WAY, IS SETTLED TO THEN REPLACE THE MOTHER WATERS TO THEN HOMOGENIZE AND SHAKE BEFORE NEUTRALIZATION. (Machine-translation by Google Translate, not legally binding)