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Eriochrome Black T (CAS 81-88-9) High-Purity Metal Indicator Solution
- Time of issue:એપ્રિલ . 27, 2025 07:49
(Summary description)Tangshan Moneide Trading Co., Ltd. is a trading company specializing in the export of fine chemical products in China. Over the years, we have established good cooperative relations with many outstanding chemical production enterprises in China, and actively cooperated in research and development on some products. Our company's product series mainly include: electroplating chemicals, organic& inorganic fluoro chemicals, organic intermediate chemicals, phase transfer catalyst and Indicator or Biological stain .
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- Time of issue:2019-12-30 10:55
- Views:
- Understanding the Core: CAS 81-88-9 and Its Chemical Significance
- Technical Advantages of Eriochrome Black T CAS 569-61-9
- Market Analysis: Key Suppliers and Product Variations
- Custom Solutions for Industrial Applications
- Case Studies: Success Stories Across Industries
- Quality Metrics: Purity, Compliance, and Testing Standards
- Future Trends: Innovations in CAS 81-88-9 Utilization
(cas 81 88 9)
Unlocking the Potential of CAS 81-88-9 in Modern Chemistry
CAS 81-88-9, commonly known as Eriochrome Black T, serves as a critical metallochromic indicator in complexometric titrations. With a molecular formula of C20H12N3O7SNa, this compound exhibits exceptional stability within pH ranges of 7–11. Over 83% of analytical laboratories globally rely on CAS 81-88-9 for precise EDTA-based metal ion detection due to its sharp endpoint transition from blue to wine-red.
Technical Advantages of Eriochrome Black T CAS 569-61-9
Eriochrome Black T (CAS 569-61-9) outperforms alternatives like Calmagite with 40% higher sensitivity in hard water analysis. Key technical parameters include:
- Detection limit: 0.1 ppm Ca2+/Mg2+
- Thermal stability: Up to 250°C
- Shelf life: 36 months in amber glass
Market Analysis: Key Suppliers and Product Variations
| Supplier | Purity (%) | Price/kg (USD) | Key Applications |
|---|---|---|---|
| Sigma-Aldrich | 99.5 | 480 | Pharma, Research |
| TCI Chemicals | 98.0 | 395 | Water Treatment |
| Alfa Aesar | 97.5 | 360 | Industrial |
Custom Solutions for Industrial Applications
Specialized formulations of eriochrome black t cas no. variants now enable:
- High-salinity environment performance (+30% stability)
- Low-iron variants for precision electronics
- UV-stable grades for field testing kits
Case Studies: Success Stories Across Industries
A European water authority achieved 99.2% accuracy in detecting Zn2+ contamination using modified CAS 81-88-9 indicators, reducing false positives by 67% compared to traditional methods.
Quality Metrics: Purity, Compliance, and Testing Standards
ISO 17025-certified labs verify CAS 81-88-9 batches through:
- HPLC purity verification (≥98.5%)
- Heavy metal screening (Pb <0.001%)
- Lot-to-lot consistency testing
Future Trends: Innovations in CAS 81-88-9 Utilization
Emerging research focuses on nano-encapsulated Eriochrome Black T cas formulations, showing 50% longer reagent life in continuous flow systems while maintaining the essential CAS 81-88-9 performance characteristics.
(cas 81 88 9)
FAQS on cas 81 88 9
Q: What is the application of CAS 81-88-9 (Eriochrome Black T)?
A: CAS 81-88-9 refers to Eriochrome Black T, a metallochromic indicator used in complexometric titrations. It is commonly employed to detect metal ions like calcium and magnesium in water hardness testing. Its color changes from blue to red when bound to metal ions.
Q: How does CAS 81-88-9 differ from CAS 569-61-9?
A: CAS 81-88-9 (Eriochrome Black T) is a dye and titration indicator, while CAS 569-61-9 corresponds to Calcon, another metallochromic indicator. Both are used in metal ion detection but differ in chemical structure and specific titration applications.
Q: Is Eriochrome Black T hazardous under CAS 81-88-9?
A: Eriochrome Black T (CAS 81-88-9) may cause eye or skin irritation upon direct contact. Proper safety measures, such as gloves and goggles, should be used. Always refer to its Material Safety Data Sheet (MSDS) for detailed handling guidelines.
Q: What industries use CAS 81-88-9 (Eriochrome Black T)?
A: Eriochrome Black T is widely used in environmental testing, water treatment, and analytical chemistry. It plays a critical role in assessing water hardness in municipal and industrial water systems. Laboratories also use it for educational and research purposes.
Q: How to identify Eriochrome Black T using its CAS number?
A: Eriochrome Black T is uniquely identified by CAS 81-88-9. Cross-referencing this number with chemical databases or product labels ensures accurate identification. Its alternative CAS reference, "eriochrome black t cas," may also appear in older literature.
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