Eriochrome Black T ACS, Reag. Ph. Eur. Indicator_complexometry, Supelco®

: 1-Naphthalenesulphonic acid, 3-hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-7-nitro-, sodium salt (1:1), Eriochrome black T, Indicator, EBT, Sodium 3-hydroxy-4-(2-hydroxy-1-naphthylazo)-7-nitro-1-naphthalenesulphonate, Solochrome Black T

:1787-61-7

:C₂₀H₁₂N₃NaO₇S

:MFCD00003935

:461.39 g/mol

:9 III

:13,03702

:MQ200

:217-250-3

:3077

:GHS07

:GHS09

:Ambient

Environmentally Preferable:

dentity (UV/VIS-Spectrum):
passes test
Appearance:
Black to dark brown-black fine powder, eventually with granular parts
Clarity of solution:
passes test
Absorption maximum λmax. (buffer pH 10.0):
612 - 616 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.02 g/l; buffer pH 10.0; calc. on dried substance):
400 - 510
Loss on drying (110 °C):
≤ 7 %
Suitability as indicator (for complexometric titration, ACS):
passes test
Suitability as indicator (Reag. Ph. Eur.):
passes test

Merck Brighter titration Titripur®

msds_103170