Eriochrome® Black T
biotech grade
- Product Code: 52783
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 metallochromic indicator in complexometric titrations, particularly for determining the concentration of metal ions such as calcium, magnesium, and other divalent cations in water hardness analysis. It forms colored complexes with these metal ions, typically producing a wine-red color, which transitions to blue when the metal ions are chelated by EDTA, signaling the titration endpoint. This makes it a crucial tool in analytical chemistry for water quality assessment and industrial processes where monitoring metal ion concentrations is essential. Additionally, it is employed in educational laboratories to teach principles of complexometric titrations due to its clear and distinct color change.
Product Specification:
| Test | Specification |
|---|---|
| APPEARANCE | Brown to black powder |
| SOLUBILITY IN WATER | Clarify c=0.1g/100mL (Not More Than a Faint Trace of Turbidity or Insoluble Matter |
| IGNITION RESIDUE AS SULFATE | 20 |
Sizes / Availability / Pricing:
| Size (g) | Availability | Price | Quantity |
|---|---|---|---|
| 25.000 | 10-20 days | $14.16 |
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| 100.000 | 10-20 days | $38.15 |
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| 500.000 | 10-20 days | $152.58 |
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| 2500.000 | 10-20 days | $596.97 |
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Eriochrome® Black T
Eriochrome® Black T is widely used as a metallochromic indicator in complexometric titrations, particularly for determining the concentration of metal ions such as calcium, magnesium, and other divalent cations in water hardness analysis. It forms colored complexes with these metal ions, typically producing a wine-red color, which transitions to blue when the metal ions are chelated by EDTA, signaling the titration endpoint. This makes it a crucial tool in analytical chemistry for water quality assessment and industrial processes where monitoring metal ion concentrations is essential. Additionally, it is employed in educational laboratories to teach principles of complexometric titrations due to its clear and distinct color change.
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