Chromium black T

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.