Eriochrome blue SE
High purity grade, Dye content 80%
Reagent
Code: #111879
Alias
Chrome Blue SE ; Medial Blue 13; 3-[(5-Chloro-2-hydroxyphenyl)azo]-4,5-dihydroxy-2,7-naphthalene disulfonic acid disodium salt
CAS Number
1058-92-0
science Other reagents with same CAS 1058-92-0
blur_circular Chemical Specifications
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Molecular Information
Weight
518.81 g/mol
Formula
C₁₆H₉ClN₂Na₂O₉S₂
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Registry Numbers
EC Number
213-894-4
MDL Number
MFCD00003941
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Storage & Handling
Storage
2~8°C
description Product Description
Eriochrome blue SE is widely used as a metallochromic indicator in complexometric titrations, particularly for determining metal ions like calcium and magnesium in water hardness analysis. It changes color when it binds to these metal ions, making it a valuable tool in analytical chemistry for precise endpoint detection. Additionally, it is employed in dyeing processes for textiles, where it acts as a mordant dye, forming stable complexes with metal ions to enhance colorfastness. Its ability to selectively interact with specific metals also makes it useful in research and industrial applications for metal ion detection and separation.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| Absorbance (E1% 1cm) (Methanol, 552.0 - 556.0 nm) | 0 |
| Absorbance (E1% 1cm) (Methanol, 552.0 - 556.0 nm) | 0 |
| Absorbance (E1% 1cm) (Methanol, 526.0 - 530.0 nm) | 0 |
| Absorbance (E1% 1cm) (Methanol, 526.0 - 530.0 nm) | 0 |
| Dye Content | 80-100 |
| Appearance | Brown to black powder or crystalline powder |
| Infrared Spectrum | Conforms to Structure |
| Max Nm (Methanol) | 552.0-556.0 |
| Max2 Nm (Methanol) | 526.0-530.0 |
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