Eriochrome black T

Name: Eriochrome black T
Grade: ACS
Application: Titration
Synonyms: Sodium 1-[1-Hydroxynaphthylazo]-6-nitro-2-naphthol-4-sulfonate
CAS Number: 1787-61-7 EC Number: 217-250-3  Molar Mass: 461.38 g/mol  Chemical Formula: C20H12N3NaO7S
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Chemical formula: C20H12N3NaO7S Molar Mass: 461.38  g/mol
Appearance:  Dark red/brown powder Bulk density: ~ 400 – 600 kg/m3
Solub. in water: 50 g/l (20 °C) Application: Complexometric titration
Flash point: 185 °C pH value: ~ 3.7 (10 g/l, H2O, 20 °C)
Storage temp.: Below  +30 °C Cautions: Irritant, dangerous
R: 36-51/53 S: 26-61
HS-No.:  3204 19 00 EC-Index-No.:  217-250-3

 

 

 

 

Technical Specifications

Technical Specification

Solubility Conforms
Clarity of solution Conforms
Suitability as complexometric indicator Conforms
absorption λmax 503 nm

 

Order code

Ordering code 10 g 25 g 50 g 100 g 1000 g
P.E. 602.16.00010.01 602.16.00025.01 602.16.00050.01
Glass

Warning signs

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Hazard Symbol

 

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