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CAS RN: 2538-85-4 | Product Number: A0581

Mordant Black 17 [Indicator for Complexometry]

  • 1-(2-Hydroxy-1-naphthylazo)-2-naphthol-4-sulfonic Acid Sodium Salt
  • Eriochrome Blue Black R
  • Calcon
  • Sunchromine Blue Black R
10   3  
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Product Number A0581
Molecular Formula / Molecular Weight C__2__0H__1__3N__2NaO__5S = 416.38  
Physical State (20 deg.C) Solid
CAS RN 2538-85-4
PubChem Substance ID 87562165
Colour Index 15705
MDL Number


Appearance Red to Dark blue to Black powder to crystal
Lambda max. 524.0 to 528.0 nm(0.01mol/L HCl(MeOH))
Absorbance(E1%1cm) min. 420(0.01mol/L HCl(MeOH), 524.0 to 528.0 nm)
Sensitiveness Turn Reddish Blue(or Red Purple) with Ca(0.01 mmol/L) and turn Blue by adding EDTA 2Na.
Properties (reference)
Maximum Absorption Wavelength 526(0.01mol/L HCl(MeOH)) nm
Solubility in water Soluble
Solubility (slightly sol. in) Acetone,Ethanol
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
RTECS# QK2200000
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PubMed Literature

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