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ELECTROLYTES IN ACID‐RESISTING ENAMELS *
Author(s) -
Petersen Fred A.,
Hutchison Clark
Publication year - 1941
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1941.tb14820.x
Subject(s) - enamel paint , electrolyte , chemistry , sulfate , salt (chemistry) , metallurgy , materials science , mineralogy , composite material , organic chemistry , electrode
A bstract The effect of various electrolytes on the acid resistance, “set,” and defects of acid‐resisting enamels was studied. The defects encountered were scumming, pitting, and shorelining. It was found that (1) insufficient set caused scumming which was aggravated by aging the enamel; this defect may be eliminated by increasing the set of the enamel; (2) one of the enamels studied had a marked tendency to shoreline whenever a sulfate or an electrolyte containing the sulfate radical was used; and (3) the pitting tendency of one enamel was traced to the high soluble salt content of the mill liquor; this defect was eliminated by spraying the enamel at a high gravity or by applying the acid‐resisting enamel in a heavier coating. Some of this work has been continued in regular plant practice, and a discussion of this phase of the work is included.