Product Details
- Manufacturer
- Honeywell Fluka™
- SKU
- 15634110
About this product
Hydroxynaphthol Blue.
Description:
Hydroxynaphthol Blue is an azo dye commonly used as a metal indicator in complexometric titrations. It plays a crucial role in analytical chemistry, particularly in detecting calcium and other metal ions.
Key Features
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Chemical Formula – C₂₀H₁₁N₂Na₃O₁₁S₃.
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Appearance – Black-violet powder.
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Solubility – Soluble in water.
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Acidity (pKa) – 6.44 and 12.93.
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Color Change – Shifts from reddish-pink to deep blue depending on pH and metal ion presence.
Common Uses
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Complexometric Titration – Determines the endpoint in metal titrations.
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Calcium Detection – Used as a metallochromic indicator in EDTA titration.
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pH Indicator – Changes color in alkaline conditions.
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Laboratory Applications – Utilized in metal affinity chromatography
Catalog Number:15634110
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