o-CRESOLPHTHALEIN colour pH indicator helpful for determination of calcium content
EOSIN BLUE
o-CRESOLPHTHALEIN COMPLEXONE
CRESOL RED (ACS GRADE)
CARBOL FUCHSIN
CHLOROPHENOL RED
BROMOTHYMOL BLUE SODIUM SALT (ACS GRADE)
CHROMOTROPE 2B
BROMOXYLENOL BLUE
CHROMOTROPE 2R
CALCEIN (FLUORESCEIN COMPLEXONE)
CALCON (SOLOCHROME DARK BLUE)
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