Eriochrome Black T
C.l.No.14645 Solochrome Black T, Sodium 4-[(1-hydroxynaphthalen-2-yl-hydrazinylidene]-7-nitro-3-oxo-Y-naphthalene-1-sulphonate ; Mordant Black 11

Product Code.
01121
Grade
Purity
CAS No.
1787-61-7
Molecular Formula
C20H12N3NaO7S
Molecular Weight
461.38
H.S.Code
3204.90000
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Solid
Colour
Brownish black powder
Odour
Odorless

Packaging

Specification

Appearance
Brownish black powder
Suitability (as metal indicator)
Passes test
Absorption maxima at pH 10
612 - 616 nm
Loss on drying
Max 7%

Safety Information and Hazard Symbols