Ar Edta Disodium
Analytical Chelating
Analytical Reagent

AR Grade EDTA (Disodium Salt)

Analytical Reagent grade EDTA disodium salt manufactured for complexometric titrations, metal ion determination, and water hardness testing. Our AR grade EDTA provides reliable chelating properties for research applications, analytical procedures, and precise metal ion quantification.

  • Analytical Grade Purity
  • Complexometric Titrant
  • Metal Ion Determination
  • Water Hardness Testing
  • Research Laboratory Use
  • Primary Standard Quality
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Technical Specifications

Chemical Formula: C₁₀H₁₄N₂Na₂O₈·2H₂O
CAS Number: 6381-92-6
EINECS Number: 205-358-3
Assay (Complexometric): ≥99.0% (AR Grade)
Physical State: White crystalline powder
Bulk Density: 0.80-1.00 g/cm³
Molecular Weight: 372.24 g/mol (dihydrate)
Melting Point: 252°C (decomposition)
pH (1% solution): 4.0-6.0
Solubility (water, 20°C): 111 g/L
Water Content: 9.5-10.5% (dihydrate)
Insoluble Matter: ≤ 0.005%
Residue on Ignition: ≤ 0.1%
Chloride (Cl): ≤ 0.001%
Heavy Metals (as Pb): ≤ 0.001%
Iron (Fe): ≤ 0.001%
Calcium (Ca): ≤ 0.01%
Magnesium (Mg): ≤ 0.01%
Packaging Options: 500g, 1kg, 2.5kg plastic bottles

Applications

Complexometric Titrations
Metal Ion Analysis
Water Hardness Testing
Chelation Therapy
Analytical Chemistry
Pharmaceutical Analysis
Environmental Testing
Educational Laboratories
Quality Control
Buffer Solutions
Metal Masking Agent
Standard Solutions

Industry-Specific Grades

DRAVYOM offers specialized EDTA disodium salt grades tailored for specific analytical requirements, ensuring optimal performance and regulatory compliance across diverse laboratory applications.

AR Grade (Analytical Reagent)
Assay: ≥99.0% Insoluble: ≤ 0.005% Heavy Metals: ≤ 0.001% Application: General analytical procedures
ACS Grade
Assay: ≥99.0% pH: 4.0-6.0 Chloride: ≤ 0.001% Application: ACS analytical standards
Complexometric Grade
Assay: ≥99.5% Metal Interference: Minimized Sharp Endpoints: Yes Application: Precise metal titrations
USP Grade
Assay: 99.0-101.0% USP Monograph: Compliant Pharmaceutical Grade: Yes Application: Pharmaceutical testing

Quality Standards

DRAVYOM's AR Grade EDTA Disodium Salt is manufactured under stringent quality control protocols, meeting international analytical standards including ACS, ISO, and pharmacopoeia specifications. Our analytical-grade production ensures consistent chelating performance and regulatory compliance.

ISO 9001:2015 Certified Manufacturing
ACS Grade Specifications
≥99.0% Accurate Purity
Advanced Analytical Testing
Superior Chelating Power
Batch-to-Batch Consistency
Traceable Certificate of Analysis
Moisture-Controlled Storage

Advanced Chemical Properties & Performance

AR Grade EDTA Disodium Salt exhibits exceptional chelating properties essential for metal complexation and analytical procedures. Its ultra-pure composition ensures reliable performance in complexometric titrations, metal ion sequestration, and buffer systems requiring precise chelation control.

Chelation Properties
Metal Binding: Hexadentate ligand
Complex Formation: 1:1 metal:EDTA stoichiometry
Stability Constants: High for divalent metals
pH Dependence: Optimal at pH 8-10
Physical Properties
Appearance: White crystalline powder
Molecular Weight: 372.24 g/mol (dihydrate)
Solubility: 111 g/L in water at 25°C
pH (1% solution): 4.0-6.0
Analytical Performance
Titration Accuracy: ±0.1% for metal determination
Working Range: 0.01-0.1 M solutions
Endpoint Detection: Sharp with metallochromic indicators
Buffer Capacity: Good buffering at pH 4-6
Purity Specifications
Assay: ≥99.0%
Water Content: 8.5-9.5% (dihydrate)
Heavy Metals: ≤0.001%
Insoluble Matter: ≤0.005%
Stability Properties
Shelf Life: 5 years (dry storage)
Solution Stability: Stable for months
Thermal Stability: Stable to 150°C
pH Stability: Wide pH range stable

Performance Characteristics

Detailed performance metrics demonstrate AR Grade EDTA Disodium Salt superiority in complexometric analysis with exceptional chelation efficiency, reliable metal binding, and reproducible results across diverse analytical and industrial applications.

Chelation Efficiency

Metal binding: >99.5% complex formation

Superior chelation performance
Titration Precision

Accuracy: ±0.1% for metal analysis

Exceptional analytical precision
Endpoint Sharpness

Clear transition: Distinct color change

Precise endpoint detection
Temperature Stability

Complex stability: Wide temperature range

Robust analytical conditions
Batch Consistency

Variation: ±0.5% between batches

Outstanding lot-to-lot reproducibility
Solution Longevity

Stability: Months of reliable performance

Extended working solution life

Safety Information

Generally safe to handle with standard laboratory precautions. May cause mild eye and skin irritation. Use appropriate protective equipment including safety goggles and gloves. Avoid inhalation of dust and ensure adequate ventilation. Wash thoroughly after handling.

Mild Irritant
Eye Protection Required
Wash After Handling

Storage & Handling

Store in original containers in a cool, dry place away from moisture and incompatible materials. Keep containers tightly closed to prevent moisture absorption. Solutions are stable for extended periods when properly stored. Use clean glassware to prevent contamination.

Cool, dry storage (15-30°C)
Protect from moisture
Keep tightly sealed
Prevent contamination

Chemical Mechanisms & Reaction Pathways

EDTA Disodium exhibits controlled metal sequestration mechanisms through hexadentate chelation, making it suitable for analytical applications requiring metal ion masking, water hardness determination, and quantitative complexometric titrations.

Hexadentate Chelation

Six coordination sites forming stable 1:1 metal-EDTA complexes

High stability constant chelation
pH-Dependent Speciation

H₂Y²⁻, HY³⁻, and Y⁴⁻ forms controlling metal binding

pH-controlled chelation efficiency
Metal Selectivity

High affinity for Ca²⁺, Mg²⁺, and transition metals

Selective metal sequestration
Solution Equilibria

Rapid complex formation with reversible binding

Dynamic equilibrium control
Interference Control

Masking agent preventing metal interference in analysis

Enhanced analytical selectivity

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global analytical laboratory access with complete documentation packages supporting international standards and analytical method validations.

ACS Specifications

American Chemical Society analytical reagent standards compliance

ISO 6353 Standard

International standard for reagent specifications and testing

USP Grade Available

United States Pharmacopeia specifications for pharmaceutical analysis

REACH Registration

European Union chemical regulation compliance

EPA Method Support

Validated for EPA water hardness analytical methods

SDS Documentation

Multi-language Safety Data Sheets (16 sections, GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's analytical chemistry team provides comprehensive complexometric analysis support, troubleshooting assistance, and analytical services to optimize AR Grade EDTA Disodium performance in your specific analytical applications.

Complexometric Method Development
  • Water hardness titration optimization
  • pH and buffer system selection
  • Indicator selection and endpoint detection
  • Metal masking techniques
Analytical Services
  • Certificate of Analysis verification
  • Custom purity and chelation capacity testing
  • Stability constant validation
  • Stability assessment
Technical Support
  • Coordination chemistry consultation
  • Safe handling and storage training
  • Method transfer support
  • Laboratory safety protocols
Performance Services
  • Method validation support
  • System suitability testing
  • Stability studies
  • Quality assurance consultation

Environmental Impact & Sustainability

Our AR Grade EDTA Disodium production emphasizes environmental responsibility through sustainable manufacturing practices, biodegradable chelator management, and comprehensive environmental impact management for analytical laboratory operations.

Biodegradable Chelator

Environmentally friendly aminopolycarboxylic acid with natural degradation

Metal Recovery

Metal recovery and recycling from EDTA complexes

Clean Production

Energy-efficient synthesis with emission controls

Safe Disposal

Comprehensive disposal and chelate neutralization guidance

ISO 14001

Environmental management system certified production

Container Recycling

Glass container return and recycling programs

Manufacturing Excellence & Quality Control

DRAVYOM's state-of-the-art analytical reagent manufacturing facility employs advanced chelator synthesis technology with continuous monitoring systems to ensure consistent AR Grade EDTA Disodium quality and performance across all production batches.

Production Process

Controlled synthesis with high-purity ethylenediamine and chloroacetic acid

Precise chelation capacity and purity control
Quality Testing

18-point analytical testing protocol including chelation capacity and purity

Complexometric verification and performance testing
Quality Systems

ISO 9001:2015 quality management with analytical laboratory accreditation

Continuous improvement and method validation
Packaging Control

Moisture-resistant containers with controlled atmosphere protection

Chelator stability preservation and contamination prevention

Market Applications & Performance Data

Comprehensive analytical laboratory data demonstrating AR Grade EDTA Disodium effectiveness across diverse applications with quantified performance metrics and complexometric method validations.

Water Hardness Analysis
Detection range: 1-1000 mg/L CaCO₃ equivalent Precision: ±0.1 mg/L at 100 mg/L level Recovery: 99.5-100.5% quantitative titration
Metal Chelation
Stability constants: Log K >15 for most metals Chelation capacity: 99.8% theoretical Complex formation: Rapid kinetics
Titration Performance
Endpoint sharpness: Clear color transitions pH working range: 8-12 optimal Temperature stability: 15-40°C range
Validation Data
Method validation: ISO/EPA water analysis standards Stability: 60+ months proven shelf life Reproducibility: <0.1% RSD analytical results

DRAVYOM Competitive Advantages

Ultra-Pure Chelator Quality

High-purity EDTA ensuring accurate complexometric analysis

Superior Chelation Capacity

Consistent 99.8% theoretical chelation efficiency

Water Analysis Standards

ISO/EPA compliant with comprehensive documentation

Moisture-Protected Supply

Controlled humidity supply chain maintaining chelator integrity

Complexometric Expertise

Support team with water analysis specialists

Environmental Responsibility

Biodegradable chelator with metal recovery programs