Eriochrome black T

Indicator

  • Product Code: 55024
  Alias:    Chrome Black T ; Ella Chrome Black T, Wool Chrome Black T, Media Black T, Acid Media Black T
  CAS:    1787-61-7
Molecular Weight: 461.38 g./mol Molecular Formula: C₂₀H₁₂N₃NaO₇S
EC Number: 217-250-3 MDL Number: MFCD00003935
Melting Point: Boiling Point:
Density: 1.109 g/mL at 25 °C Storage Condition: room temperature
Product Description: Eriochrome black T is widely used as a pH indicator and complexometric indicator in analytical chemistry. It is particularly valuable in the titration of metal ions, especially calcium and magnesium, in water hardness testing. When added to a solution, it forms colored complexes with these metal ions, allowing for precise endpoint detection during titration with EDTA. Its distinct color change from blue to red at the endpoint makes it a reliable tool for determining the concentration of metal ions in various samples. Additionally, it is employed in educational laboratories to teach students about complexometric titrations and water quality analysis.
Product Specification:
Test Specification
APPEARANCE BLACK POWDER
MAX 503NM
Sizes / Availability / Pricing:
Size (g) Availability Price Quantity
25.000 10-20 days ฿320.00
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100.000 10-20 days ฿870.00
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500.000 10-20 days ฿3,580.00
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2500.000 10-20 days ฿13,660.00
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Eriochrome black T
Eriochrome black T is widely used as a pH indicator and complexometric indicator in analytical chemistry. It is particularly valuable in the titration of metal ions, especially calcium and magnesium, in water hardness testing. When added to a solution, it forms colored complexes with these metal ions, allowing for precise endpoint detection during titration with EDTA. Its distinct color change from blue to red at the endpoint makes it a reliable tool for determining the concentration of metal ions in various samples. Additionally, it is employed in educational laboratories to teach students about complexometric titrations and water quality analysis.
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