Chromium black T
Product no. : 071634
Other names: chrome black T, ilai chrome black T
Molecular formula: C20H12N3NaO7S
Molecular weight: 461.38
Origin: tianjin yongda
Package: AR25g/ bottle, 20 bottles/piece
Properties: dark brown powder, soluble in hot water, cooled into a reddish brown solution, slightly soluble in ethanol, slightly soluble in acetone.It is red below PH6.3, orange above PH11.6, blue within the PH range of normal use, and red for the complex
Usage: chromium black T is a common metal indicator and a complexing indicator for the determination of calcium, magnesium, barium, indium, manganese, lead, scandium, strontium, zinc and zirconium.For example, the hardness of water, the content of Ca2+, Mg2+ and other metal ions were measured.