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VWR Xylenol orange tetrasodium salt, TECHNICAL, 5g
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CAS Number :
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Specifications:
| Application | Analytical Chemistry, Titration | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical, Indicators | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | C₃₁H₂₈N₂Na₄O₁₃S |
VWR® Xylenol Orange Tetrasodium Salt (Technical Grade) is a widely used complexometric indicator dye employed in analytical chemistry, particularly in EDTA titrations of metal ions. Its distinct color change from red to yellow upon complexation with metal ions makes it a valuable tool in volumetric analysis and metallochromic assays.
Supplied in technical grade, this product is ideal for routine laboratory procedures, educational use, and general analytical applications where ultra-high purity is not required.
Key Features
- Reliable Metallochromic Indicator – Used extensively in EDTA titrations.
- Distinct Color Transition – Red (acidic form) to yellow (complexed form).
- Technical Grade – Suitable for general analytical and teaching applications.
- Stable Reagent – Melting point ~210 °C, suitable for long-term laboratory use.
- Convenient Packaging – Supplied in 5 g glass bottles for controlled handling.
Applications
- Complexometric Titrations: Detection of metal ions such as calcium, magnesium, zinc, and others.
- Analytical Chemistry: Metallochromic indicator in quantitative determination of polyvalent metals.
- Educational Use: Common reagent in teaching labs for visual demonstration of chelation chemistry.
- Industrial Testing: Applied in water hardness and trace metal analysis.
Specifications
| Property | Details |
|---|---|
| CAS Number | 3618-43-7 |
| Formula | C₃₁H₂₈N₂Na₄O₁₃S |
| Molecular Weight | 760.59 g/mol |
| Appearance | Orange to reddish powder |
| Melting Point | ~210 °C |
| Storage Temperature | Ambient |
| Identification | Passes test |
| Grade | Technical |
| EINECS | 222-805-8 |
Packaging & Ordering Information
| Catalog Number | Description | Pack Size | Container |
|---|---|---|---|
| 26086.103 | VWR® Xylenol Orange Tetrasodium Salt, TECHNICAL | 5 g | Glass bottle |
Safety Information
- Hazards: May cause irritation to eyes, skin, and respiratory tract.
- Precautions: Handle with gloves, protective clothing, and eye protection. Use in well-ventilated areas. Store in a tightly closed container at ambient temperature.
VWR® Xylenol Orange Tetrasodium Salt, TECHNICAL is a dependable metallochromic indicator used in EDTA titrations, water analysis, and teaching labs. Its strong color transition and reliable performance make it a go-to reagent for metal ion detection in both academic and industrial laboratories.