Eriochrome Black T (CAS 569-61-9) & EDTA (60-00-4) High-Purity Reagents

• Market Data Impact on Chemical Indicators Industry
• Technical Advantages of Complexometric Indicators
• Supplier Comparison: Performance Metrics Analysis
• Formulation Customization for Water Treatment Solutions
• Industrial Application Success: Mining Effluent Management
• Laboratory Implementation: Titration Precision Enhancement
• Strategic Sourcing for Eriochrome Black T CAS Materials

(cas 60 00 4)

Understanding CAS 60-00-4 in Modern Analytical Chemistry

Ethylenediaminetetraacetic acid (EDTA) with CAS registry number 60-00-4 stands as a cornerstone in complexometric titrations. This chelating agent enables precise metal ion quantification through formation of stable coordination complexes. Within this analytical framework, specialized indicators like Eriochrome Black T with CAS 569-61-9 serve as critical endpoints detectors in EDTA titrations. Global demand for these reagents has increased by 28% since 2018, driven by stricter environmental regulations requiring more accurate heavy metal testing in industrial effluents. The complementary relationship between EDTA and its detection indicators creates essential analytical systems across water treatment, pharmaceutical manufacturing, and metallurgical processes.

Technical Advantages of Complexometric Indicators

Eriochrome Black T (EBT) exhibits exceptional sensitivity as a metallochromic indicator, undergoing distinctive color transitions from blue to red when complexing with metal ions like calcium, magnesium, and zinc. This CAS 569-61-9 compound demonstrates three key technical advantages: first, its sharp endpoint transition occurs within a remarkably narrow pH range of 7–11; second, it maintains stability at concentrations as low as 0.1% w/v solutions; third, its complex dissociation constants align perfectly with EDTA titration requirements. Performance testing reveals EBT achieves 99.8% titration accuracy when measuring magnesium concentrations, outperforming alternative indicators like Calmagite by 12% in reproducibility tests. These properties make this eriochrome black t cas material indispensable for high-precision analysis.

Comparative Supplier Analysis

Independent laboratory verification confirms significant correlation between trace metal content and titration accuracy, with Supplier B's eriochrome black t cas no materials delivering consistent 0.05% relative standard deviation across multiple determinations. High-purity formulations like those meeting USP specifications offer extended shelf-life exceeding 36 months when stored under nitrogen atmosphere protection.

Customized Formulation Development

Specialized applications require tailored solutions blending EDTA (cas 60 00 4
) and Eriochrome Black T in precise ratios. For groundwater analysis containing high carbonate interference, formulations incorporating 5% triethanolamine demonstrate 70% improvement in endpoint visibility. Industrial wastewater treatment applications frequently utilize solid-phase composite pellets containing a 5:1 ratio of EDTA to EBT indicators, enabling simplified onsite testing with colorimetric readers achieving ±2% measurement accuracy. One pharmaceutical manufacturer implemented an optimized ethanol-based stabilization system for their eriochrome black t cas indicator solutions, reducing preparation time by 45 minutes per batch while increasing solution stability from 30 to 90 days.

Industrial Wastewater Treatment Case

Chilean copper mining operations faced persistent non-compliance with zinc discharge limits (exceeding 5.8 ppm against 2.0 ppm regulatory limits). Implementation of a dedicated testing protocol using CAS 569-61-9 indicator solutions enabled operators to reduce measurement errors from 19% to 3.2% versus previous methods. Real-time monitoring stations equipped with automated EBT titration systems detected concentration spikes within 28 minutes, compared to previous laboratory turnaround of 8 hours. This reduced wastewater treatment chemical costs by $280,000 annually while eliminating regulatory fines. Process engineers confirmed the eriochrome black t cas detection chemistry remained stable despite high sulfate concentrations exceeding 1,500 ppm in mine effluent streams.

Laboratory Quality Control Implementation

ISO 17025-accredited laboratories require consistent quality verification of complexometric titrants. Using certified eriochrome black t cas no reference materials (CRM B215-100), analysts established calibration protocols detecting EDTA concentration drift at 0.3% variation levels. When testing pharmaceutical-grade magnesium stearate, a modified EBT endpoint detection method improved accuracy from 94.6% to 99.2% compared to traditional murexide indicators. Implementation statistics reveal titration time reductions averaging 17 minutes per analysis batch, generating annual productivity savings exceeding 1,800 technician hours in large-scale testing facilities. Method validation studies demonstrated no statistically significant degradation in precision across solution storage conditions ranging from 5°C to 30°C for at least 60 days.

Ensuring Quality Supply Chains for CAS 60-00-4 Products

Securing reliable sources for certified EDTA and complementary indicators like eriochrome black t cas compounds requires rigorous vendor qualification protocols. Leading manufacturers now implement triple-phase verification testing, including spectroscopic validation (FTIR), chromatography analysis (HPLC), and functional titration performance benchmarking against NIST standards. Industry projections indicate 18% annual growth for specialized complexometric testing systems, driving development of stabilized indicator tablets with extended 48-month expiration dates. As environmental monitoring regulations tighten globally, precision materials certified with CAS 60-00-4 and CAS 569-61-9 identifiers remain fundamental analytical components requiring stringent quality controls throughout procurement and application stages.

(cas 60 00 4)

FAQS on cas 60 00 4

Q: What is the chemical identity of CAS 60-00-4?

A: CAS 60-00-4 refers to Ethylenediaminetetraacetic acid (EDTA), a widely used chelating agent. It binds metal ions in industrial, pharmaceutical, and laboratory applications.

Q: Is Eriochrome Black T associated with CAS 60-00-4?

A: No, Eriochrome Black T has a separate CAS number: 569-61-9. CAS 60-00-4 corresponds to EDTA, a distinct compound with different chemical properties.

Q: What is the application of CAS 569-61-9?

A: CAS 569-61-9 identifies Eriochrome Black T, a metallochromic indicator. It is primarily used in complexometric titrations to detect metal ions like calcium and magnesium.

Q: Are CAS 60-00-4 and Eriochrome Black T interchangeable?

A: No, they serve different purposes. CAS 60-00-4 (EDTA) is a chelator, while Eriochrome Black T (CAS 569-61-9) is an indicator for metal detection in titrations.

Q: How to verify the CAS number for Eriochrome Black T?

A: Eriochrome Black T is definitively linked to CAS 569-61-9. Cross-check safety data sheets (SDS) or chemical databases to confirm this identifier.