Product Overview
LEEF Kimya presents premium quality EDTA Disodium Salt (Ethylenediaminetetraacetic Acid Disodium Salt) with minimum 99% purity, specifically manufactured for industrial applications across diverse sectors worldwide. With CAS Number 6381-92-6 and molecular formula C10H14N2Na2O8·2H2O, this highly effective chelating agent represents one of the most versatile and widely utilized sequestering compounds in modern industrial chemistry. EDTA Disodium Salt functions as a powerful hexadentate ligand capable of forming stable complexes with divalent and trivalent metal ions, making it indispensable in water treatment, textile processing, detergent formulation, pulp and paper manufacturing, and numerous other industrial processes. The global demand for EDTA Disodium Salt continues to grow steadily, driven by expanding applications in environmental remediation, industrial cleaning, and process optimization across manufacturing sectors. Our industrial-grade product meets stringent international quality standards while offering exceptional cost-effectiveness for bulk purchasers. LEEF Kimya's EDTA Disodium Salt is produced under strict quality control protocols, ensuring consistent performance characteristics including optimal solubility, controlled heavy metal content, and reliable chelation capacity. As a leading Turkish exporter of specialty chemicals, we supply this essential industrial chemical to manufacturers, distributors, and end-users across Europe, Middle East, Africa, and Asia, supporting diverse industrial applications with reliable quality and competitive pricing.
Technical Specifications
| Parameter | Specification |
| Assay (on dried basis) | 99.0% minimum |
| Appearance | White crystalline powder |
| pH (1% aqueous solution) | 4.0 - 5.5 |
| Chloride (Cl) | 0.01% maximum |
| Sulfate (SO4) | 0.05% maximum |
| Heavy Metals (as Pb) | 10 ppm maximum |
| Iron (Fe) | 5 ppm maximum |
| Calcium Chelating Value | 305 mg CaCO3/g minimum |
| Loss on Drying | 11.0% - 13.0% |
| Water Insoluble Matter | 0.01% maximum |
| Molecular Weight | 372.24 g/mol (dihydrate) |
| CAS Number | 6381-92-6 |
These technical specifications represent the critical quality parameters that define our industrial-grade EDTA Disodium Salt. The minimum 99% assay ensures maximum chelation efficiency and predictable performance in formulations. The controlled pH range of 4.0-5.5 in aqueous solution provides optimal stability and compatibility with most industrial processes. Stringent limits on chloride and sulfate content prevent interference with sensitive applications and ensure product purity. Heavy metal specifications, particularly the maximum 10 ppm lead content, are crucial for applications where metal contamination must be minimized. The calcium chelating value of minimum 305 mg CaCO3/g demonstrates the product's exceptional ability to sequester hardness ions, a key performance indicator for water treatment and detergent applications. Loss on drying specification accounts for the dihydrate form, ensuring consistent product composition and accurate formulation calculations.
Key Features and Benefits
- Superior Chelation Performance: Our EDTA Disodium Salt exhibits exceptional chelating capacity with formation constants ranging from 10^10 to 10^18 for various metal ions, enabling effective sequestration of calcium, magnesium, iron, copper, and other polyvalent cations even at low concentrations. This superior performance translates to reduced chemical consumption and improved process efficiency across applications.
- High Purity Standards: With minimum 99% assay and strictly controlled impurity levels, our product ensures consistent performance without interference from contaminants. Low heavy metal content makes it suitable for applications requiring high purity, while controlled chloride and sulfate levels prevent undesired side reactions in sensitive formulations.
- Excellent Solubility Profile: EDTA Disodium Salt demonstrates good water solubility (approximately 111 g/L at 20°C), facilitating easy incorporation into aqueous systems and enabling efficient handling in industrial processes. The product dissolves readily without requiring excessive agitation or heating, reducing processing time and energy costs.
- Broad pH Stability Range: Effective chelation performance across pH ranges from 4 to 12 makes this product versatile for diverse industrial applications, from acidic textile baths to alkaline cleaning formulations. This pH versatility eliminates the need for multiple chelating agents in multi-process facilities.
- Cost-Effective Solution: Compared to alternative chelating agents, EDTA Disodium Salt offers superior performance-to-cost ratio, particularly in applications requiring strong, stable metal complexation. Bulk availability and competitive pricing from LEEF Kimya further enhance economic advantages for industrial users.
- Regulatory Compliance and Safety: Our product complies with international standards including REACH regulations, making it suitable for export to European markets and other regulated jurisdictions. Well-established safety profile and extensive application history provide confidence for formulators and end-users.
- Consistent Quality Assurance: Every production batch undergoes rigorous testing against all specification parameters, with Certificates of Analysis provided for complete traceability. Our quality management system ensures batch-to-batch consistency critical for industrial manufacturing processes.
Applications and Uses
Water Treatment Industry: EDTA Disodium Salt serves as a critical component in industrial and municipal water treatment applications, where it prevents scale formation by sequestering calcium and magnesium hardness ions. In boiler water treatment, it controls metal ion precipitation that could cause scaling and corrosion, extending equipment lifespan and improving heat transfer efficiency. The compound also finds application in reverse osmosis and membrane filtration systems, where it prevents membrane fouling by chelating metal ions that could precipitate on membrane surfaces.
Textile and Dyeing Operations: In textile processing, EDTA Disodium Salt functions as an essential auxiliary chemical for pre-treatment, dyeing, and finishing operations. It sequesters metal ions present in hard water that would otherwise interfere with dye uptake and cause uneven coloration or shade variations. During bleaching processes, it stabilizes by chelating trace metal ions that catalyze peroxide decomposition, ensuring consistent bleaching results and preventing fabric damage. The product also prevents metal-catalyzed oxidation of dyes, improving color fastness and fabric quality.
Detergent and Cleaning Product Manufacturing: As a builder and sequestering agent in detergent formulations, EDTA Disodium Salt enhances cleaning performance by softening water and preventing redeposition of soil particles on cleaned surfaces. It stabilizes enzymes and bleaching agents in detergent formulations by chelating metal ions that would otherwise deactivate these components. Industrial and institutional cleaning products utilize EDTA Disodium Salt for removing mineral deposits, rust stains, and metal oxide films from various surfaces including stainless steel, ceramics, and glass.
Pulp and Paper Industry: EDTA Disodium Salt controls metal ions during pulp bleaching sequences, particularly in chlorine dioxide and bleaching stages, where trace metals can catalyze unwanted reactions and reduce bleaching efficiency. It prevents pitch deposits and scale formation in papermaking equipment by sequestering calcium and other hardness ions. The compound also improves brightness stability of bleached pulp by removing transition metal ions that catalyze yellowing reactions.
Electroplating and Metal Finishing: In electroplating baths, EDTA Disodium Salt maintains metal ions in solution at controlled concentrations, ensuring uniform deposition and high-quality plated surfaces. It serves as a complexing agent in electroless plating formulations and metal surface treatment processes. The product also finds application in metal cleaning and pickling operations, where it removes oxide films and rust without aggressive acid attack on base metal.
Quality Standards and Certifications
LEEF Kimya's EDTA Disodium Salt is manufactured under comprehensive quality management systems certified to ISO 9001:2015 standards, ensuring consistent product quality and reliable supply chain performance. Our production facility implements Good Manufacturing Practice (GMP) protocols with documented procedures for raw material verification, in-process quality control, and finished product testing. Each production batch undergoes complete analytical testing by our accredited quality control laboratory, with testing protocols following internationally recognized methods including USP, BP, and industry-standard analytical procedures. We provide detailed Certificates of Analysis (COA) with every shipment, documenting all specification parameters and confirming compliance with agreed quality standards. For European Union customers, our EDTA Disodium Salt complies with REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) regulations, with complete registration documentation available. The product meets requirements for industrial applications as specified in relevant industry standards and customer specifications. Our quality assurance system includes complete traceability from raw materials through production to final packaging, enabling rapid response to any quality inquiries. We maintain comprehensive product safety documentation including Safety Data Sheets (SDS) compliant with GHS (Globally Harmonized System) classification standards, available in multiple languages to support international trade requirements. Regular third-party audits verify our quality systems and manufacturing practices, providing additional assurance to customers requiring validated supplier qualification.
Packaging and Storage
LEEF Kimya offers flexible packaging options to meet diverse customer requirements and logistics preferences. Standard packaging includes 25 kg multi-wall paper bags with inner polyethylene liner, providing excellent moisture protection and easy handling for smaller-volume users. For bulk purchasers, we supply 500 kg jumbo bags (FIBC - Flexible Intermediate Bulk Containers) constructed from UV-stabilized polypropylene with food-grade PE liners, offering economical handling and reduced packaging waste. Large-volume industrial consumers can opt for 1000 kg IBCs (Intermediate Bulk Containers) with integrated pallets for efficient forklift handling and direct feeding into process equipment. All packaging materials are selected to prevent moisture ingress and contamination during storage and transportation. Products are palletized according to international shipping standards, with stretch-wrap or shrink-wrap protection for container shipments. Each package is clearly labeled with product name, batch number, net weight, manufacturing date, and essential safety information in English and other languages as requested. For storage, EDTA Disodium Salt should be kept in cool, dry, well-ventilated warehouses away from direct sunlight and moisture sources. Recommended storage temperature range is 5-35°C with relative humidity below 70% to prevent caking and maintain free-flowing characteristics. When stored under proper conditions in unopened original packaging, the product maintains specification quality for minimum 24 months from manufacturing date. Opened packages should be resealed immediately after use and consumed within 6 months to ensure optimal product performance.
Shipping and Trade Terms
LEEF Kimya provides comprehensive export services with flexible Incoterms to accommodate customer preferences and logistics requirements. We regularly offer CIF (Cost, Insurance, and Freight) terms to major destination ports worldwide, with FOB (Free On Board) Istanbul/Mersin also available for customers arranging their own freight. Our standard port of loading is Ambarlı Port, Istanbul, with alternative shipment from Mersin Port available for Mediterranean and Middle Eastern destinations. Typical lead time for order fulfillment ranges from 2-3 weeks for stock items, with production orders requiring 3-4 weeks depending on quantity and packaging specifications. We work with established international freight forwarders and shipping lines to ensure reliable delivery schedules and competitive freight rates. Full container loads (FCL) are available in 20ft containers (approximately 20-22 MT depending on packaging) and 40ft containers (approximately 24-26 MT), with Less than Container Load (LCL) shipments accommodated for smaller orders. Complete shipping documentation is provided including Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, Certificate of Analysis, and any additional documents required by destination country regulations. For customers requiring special certifications such as Halal, Kosher, or specific regulatory compliance certificates, we can arrange these with advance notice. Payment terms are negotiable based on order value and customer relationship, with standard terms including T/T (Telegraphic Transfer), L/C (Letter of Credit) at sight or usance, and other mutually agreed arrangements. We maintain product liability insurance and can provide additional cargo insurance as requested to protect customer interests during international transportation.
Why Choose LEEF Kimya
LEEF Kimya Sanayi ve Ticaret Limited Şirketi stands as a trusted partner in the global specialty chemicals trade, with over two decades of experience serving industrial customers across more than 40 countries. Our Istanbul-based operations combine strategic geographic location bridging Europe and Asia with deep expertise in chemical trading, enabling us to deliver competitive pricing without compromising quality standards. We maintain strong relationships with certified manufacturers and implement rigorous supplier qualification processes, ensuring that every product we supply meets or exceeds international quality benchmarks. Our technical team provides comprehensive pre-sales and after-sales support, including application guidance, formulation assistance, and troubleshooting support to help customers optimize product performance in their specific applications. Quality assurance is fundamental to our business philosophy—we never compromise on product specifications and maintain complete transparency in our quality documentation and testing protocols. Our logistics capabilities include warehousing facilities, flexible packaging options, and established relationships with international freight forwarders, enabling reliable delivery to destinations worldwide. We understand the importance of supply chain continuity for industrial operations and maintain adequate inventory levels to ensure prompt order fulfillment and consistent product availability. Customer satisfaction drives our business approach, with responsive communication, competitive pricing, and flexible commercial terms designed to build long-term partnerships rather than transactional relationships. LEEF Kimya's commitment to ethical business practices, regulatory compliance, and environmental responsibility makes us a preferred supplier for companies requiring validated, responsible sourcing of specialty chemicals. Choose LEEF Kimya for your EDTA Disodium Salt requirements and experience the difference that quality products, technical expertise, and customer-focused service deliver to your operations.
Frequently Asked Questions
Q1: What is the difference between EDTA Disodium Salt and EDTA Tetrasodium Salt, and which should I use for my application?
A: EDTA Disodium Salt (Na2EDTA) contains two sodium ions and has a pH of approximately 4-5.5 in aqueous solution, making it suitable for slightly acidic to neutral applications. EDTA Tetrasodium Salt (Na4EDTA) contains four sodium ions and produces alkaline solutions with pH around 10-11, preferred for alkaline formulations. For most water treatment, textile, and detergent applications, EDTA Disodium Salt offers better solubility and performance. The choice depends on your process pH requirements and compatibility with other formulation components. Our technical team can provide specific recommendations based on your application details.
Q2: Can I use your industrial-grade EDTA Disodium Salt in food processing or pharmaceutical applications?
A: Our industrial-grade EDTA Disodium Salt is manufactured specifically for industrial applications including water treatment, textiles, detergents, and metal processing. While it meets high purity standards (99% minimum), it is not produced under the stringent controls required for food-grade or pharmaceutical-grade materials. For food processing or pharmaceutical applications, you would require USP, BP, or food-grade certified EDTA Disodium Salt manufactured in facilities compliant with relevant regulatory standards. Please contact us to discuss your specific requirements, as we can source specialized grades for these applications.
Q3: How should I calculate the dosage of EDTA Disodium Salt for water hardness control in my process?
A: Dosage calculation depends on water hardness level and desired residual chelant concentration. As a general guideline, approximately 0.3-0.4 kg of EDTA Disodium Salt is required to sequester hardness equivalent to 1 kg of calcium carbonate (CaCO3). For example, water with 200 ppm hardness (as CaCO3) would require approximately 60-80 ppm EDTA Disodium Salt for complete sequestration, plus additional amount for residual protection. However, optimal dosage varies based on pH, temperature, competing ions, and specific application requirements. We recommend conducting trials at different dosage levels to determine the most cost-effective treatment rate for your specific water chemistry and process conditions.
Q4: What is your minimum order quantity, and do you provide samples for testing before bulk purchase?
A: Our standard minimum order quantity for export shipments is 5 metric tons, which represents approximately one-quarter of a 20ft container load. For established customers or specific market development opportunities, we can consider smaller initial orders on a case-by-case basis. We definitely provide samples for testing and evaluation before bulk purchase—typically 500g to 1kg samples are available free of charge (customer pays courier shipping), or larger test quantities up to 25kg can be supplied at nominal cost. Sample requests should include information about your intended application and approximate annual volume requirements to help us provide appropriate technical support along with the sample material.
Q5: How does EDTA Disodium Salt compare to alternative chelating agents like DTPA or NTA in terms of performance and cost?
A: EDTA Disodium Salt offers excellent balance of chelation performance, versatility, and cost-effectiveness compared to alternatives. While DTPA (Diethylenetriaminepentaacetic Acid) provides stronger chelation for certain metal ions, it costs 2-3 times more than EDTA and is typically reserved for specialized applications requiring superior performance. NTA (Nitrilotriacetic Acid) is less expensive but offers weaker chelation and has faced regulatory scrutiny in some markets due to environmental concerns. EDTA Disodium Salt provides strong, stable complexation across a broad range of metal ions and pH conditions, with well-established safety profile and regulatory acceptance worldwide. For most industrial applications including water treatment, textiles, and detergents, EDTA Disodium Salt delivers optimal performance-to-cost ratio. We can provide detailed technical comparison and cost analysis specific to your application requirements upon request.
