Description
Sodium Tungstate for Analytical & Industrial Applications
Sodium Tungstate (Na2WO4), with CAS number 13472-45-2, commonly known as Disodium Tungstate, Sodium Tungstate Dihydrate (Na2WO4·2H2O), or Tungstate of Soda, containing high-purity tungsten content typically ranging from 69.0-70.5% WO3 equivalent, is a specialized white crystalline powder with excellent water solubility and outstanding chemical stability. Sodium Tungstate is specifically manufactured to provide reliable analytical performance, making it ideal for applications requiring effective chemical analysis, catalytic activity, precipitation reactions, tungsten source material, and quality control in analytical chemistry, industrial catalysis, chemical manufacturing, and specialized research applications. The compound works through various mechanisms including catalytic oxidation, precipitation reactions, and tungsten delivery, enabling effective analytical determinations and providing tungsten source for industrial and research processes. Sodium Tungstate represents one of the most important tungsten compounds in analytical chemistry, providing exceptional solubility, superior purity, excellent chemical stability, and outstanding performance, making it essential for analytical laboratories, catalytic processes, chemical synthesis, and specialized applications requiring reliable tungsten chemistry and precise analytical results.
At Chemicals & Process Equipment Limited, we supply high-performance Sodium Tungstate manufactured under stringent quality control standards and international analytical, industrial, and research specifications. Our comprehensive product range includes various purity grades, hydration states, and specialized formulations meeting diverse requirements for analytical chemistry, industrial catalysis, chemical synthesis, research applications, and specialized chemical operations across global laboratory, industrial, chemical manufacturing, and research markets.
✅ Advanced Analytical Technology – Optimized Purity & Multi-Industry Applications
✅ Consistent Quality Standards – Multiple Product Classifications with Comprehensive Documentation
✅ Essential Laboratory Chemical – Superior Analytical Performance, Catalysis & Chemical Reactions
✅ Multi-Industry Applications – Laboratory Analysis, Industrial Catalysis, Chemical Manufacturing, Research
✅ Technical Support Package – Complete Application Guidance & Performance Optimization
The global sodium tungstate market was valued at approximately USD 180 million in 2023 and is projected to reach USD 250 million by 2030, growing at a CAGR of 4.8% during the forecast period. Market expansion is driven by increasing analytical chemistry demand, growing industrial catalysis requirements, expanding chemical manufacturing, and rising requirements for specialized tungsten chemistry processes. For comprehensive technical information about sodium tungstate applications in analytical chemistry, visit the ChemSpider database on sodium tungstate.
Technical Specifications & Sodium Tungstate Properties
| Property | Analytical Grade | Laboratory Grade | Technical Grade | Industrial Grade | Research Grade | Pharmaceutical Grade |
|---|---|---|---|---|---|---|
| Na2WO4 Content (%) | 99.5-100 | 99.0-99.5 | 98.5-99.5 | 98.0-99.0 | 99.8-100 | 99.9-100 |
| WO3 Content (%) | 69.5-70.5 | 69.0-70.0 | 68.5-70.5 | 68.0-71.0 | 69.8-70.2 | 70.0-70.3 |
| Moisture Content (%) | <0.1 | <0.3 | <0.5 | <1.0 | <0.05 | <0.03 |
| Insoluble Matter (%) | <0.01 | <0.02 | <0.05 | <0.1 | <0.005 | <0.003 |
| pH (5% solution) | 8.5-9.5 | 8.0-10.0 | 7.5-10.5 | 7.0-11.0 | 8.8-9.2 | 9.0-9.3 |
| Chloride (Cl⁻) (ppm) | <5 | <10 | <25 | <50 | <2 | <1 |
| Sulfate (SO₄²⁻) (ppm) | <10 | <20 | <50 | <100 | <5 | <3 |
| Heavy Metals (ppm) | <5 | <10 | <20 | <50 | <2 | <1 |
| Iron (Fe) (ppm) | <2 | <5 | <10 | <25 | <1 | <0.5 |
| Lead (Pb) (ppm) | <1 | <2 | <5 | <10 | <0.5 | <0.2 |
| Arsenic (As) (ppm) | <0.5 | <1 | <3 | <5 | <0.2 | <0.1 |
| Mercury (Hg) (ppm) | <0.1 | <0.3 | <1 | <2 | <0.05 | <0.02 |
| Cadmium (Cd) (ppm) | <0.5 | <1 | <3 | <5 | <0.2 | <0.1 |
| Copper (Cu) (ppm) | <1 | <3 | <8 | <15 | <0.5 | <0.3 |
| Nickel (Ni) (ppm) | <1 | <2 | <5 | <10 | <0.5 | <0.3 |
| Zinc (Zn) (ppm) | <2 | <5 | <10 | <20 | <1 | <0.5 |
| Phosphate (PO₄³⁻) (ppm) | <5 | <10 | <25 | <50 | <2 | <1 |
| Silicate (SiO₃²⁻) (ppm) | <10 | <20 | <50 | <100 | <5 | <3 |
| Nitrate (NO₃⁻) (ppm) | <5 | <10 | <25 | <50 | <2 | <1 |
| Ammonium (NH₄⁺) (ppm) | <5 | <10 | <25 | <50 | <2 | <1 |
| Alkali Metal Content (%) | <0.1 | <0.2 | <0.5 | <1.0 | <0.05 | <0.03 |
| Particle Size (mesh) | 200-325 | 100-200 | 80-120 | 60-100 | 325-400 | 400+ |
| Bulk Density (g/L) | 1800-1900 | 1750-1850 | 1700-1800 | 1650-1750 | 1850-1950 | 1900-2000 |
| Solubility in Water (g/100g at 20°C) | 74.2-74.8 | 73.5-75.0 | 72.0-76.0 | 70.0-78.0 | 74.5-74.7 | 74.6-74.8 |
| Hydration State | Dihydrate | Variable | Variable | Anhydrous/Hydrated | Dihydrate | Dihydrate |
| Crystal Form | Fine crystals | Crystalline | Granular | Coarse | Ultra-fine | Pharmaceutical |
| Color (visual) | Pure white | White | White/Off-white | White/Cream | Brilliant white | Pure white |
| Odor | Odorless | Odorless | Slight | Variable | Odorless | Odorless |
| Flowability | Excellent | Very good | Good | Fair | Outstanding | Excellent |
| Hygroscopicity | Low | Low | Medium | High | Very low | Low |
| Thermal Stability (°C) | >600 | >550 | >500 | >450 | >650 | >600 |
| Decomposition Temp (°C) | >800 | >750 | >700 | >650 | >850 | >800 |
| Storage Temperature (°C) | <30 | <35 | <40 | <45 | <25 | <25 |
| Relative Humidity (%) | <60 | <65 | <70 | <75 | <55 | <55 |
| Packaging | Analytical bottles | Lab containers | Industrial bags | Bulk containers | Research vials | Pharmaceutical |
| Container Material | Borosilicate | HDPE | PE/PP | Standard PE | USP grade | USP grade |
| Shelf Life (years) | 5 | 3 | 2 | 1 | 10 | 7 |
| Transport Class | 9 | 9 | 9 | 9 | 9 | 9 |
| UN Number | N/A | N/A | N/A | N/A | N/A | N/A |
| Hazard Classification | Non-hazardous | Non-hazardous | Non-hazardous | Non-hazardous | Non-hazardous | Non-hazardous |
| Analytical Performance | Outstanding | Excellent | Good | Fair | Superior | Outstanding |
| Catalytic Activity | High | High | Medium | Low | Very high | High |
| Precipitation Efficiency (%) | 99.5-99.9 | 99.0-99.5 | 98.0-99.0 | 95.0-98.0 | 99.8-99.9 | 99.9-100 |
| Dissolution Rate | Very fast | Fast | Medium | Slow | Ultra-fast | Very fast |
| Chemical Compatibility | Excellent | Very good | Good | Fair | Outstanding | Excellent |
| Oxidation Potential | High | High | Medium | Low | Very high | High |
| Buffer Capacity | Good | Good | Fair | Poor | Excellent | Very good |
| Ionic Strength Effect | Minimal | Low | Medium | High | Negligible | Minimal |
| Temperature Coefficient | Low | Low | Medium | High | Very low | Low |
| Interference Level | Minimal | Low | Medium | High | Negligible | Minimal |
| Method Compatibility | Universal | Broad | Standard | Limited | All methods | Universal |
| Precision (% RSD) | <0.1 | <0.2 | <0.5 | <1.0 | <0.05 | <0.1 |
| Accuracy (% recovery) | 99.8-100.2 | 99.5-100.5 | 99.0-101.0 | 98.0-102.0 | 99.9-100.1 | 99.8-100.2 |
| Detection Limit | Excellent | Very good | Good | Fair | Superior | Outstanding |
| Linearity Range | Wide | Wide | Medium | Narrow | Very wide | Wide |
| Matrix Effects | Minimal | Low | Medium | High | Negligible | Minimal |
| Storage Stability | Excellent | Very good | Good | Fair | Outstanding | Excellent |
| Reconstitution | Immediate | Fast | Medium | Slow | Instant | Immediate |
| Microbiological Quality | Sterile | Low bioburden | Controlled | Standard | Sterile | Sterile |
| Endotoxin Level (EU/g) | <0.1 | <1 | <10 | N/A | <0.05 | <0.1 |
| Regulatory Compliance | Full | Standard | Basic | Limited | Research | Full USP/EP |
| Quality Certificates | Complete | Standard | Basic | Minimal | Research grade | Pharmacopeia |
| Documentation | Full COA | Standard COA | Basic | Limited | Research docs | Full validation |
| Technical Support | Expert | Advanced | Standard | Basic | Specialized | Expert |
| Custom Synthesis | Available | Limited | No | No | Available | Available |
| Minimum Order (kg) | 0.1 | 1 | 25 | 500 | 0.01 | 0.05 |
| Lead Time (weeks) | 1-2 | 1-2 | 2-3 | 1-2 | 2-4 | 3-5 |
| Price Level | High | Medium | Low | Lowest | Highest | Premium |
| Global Availability | Good | Good | Excellent | Limited | Limited | Good |
Available Product Types:
- Analytical Grade Sodium Tungstate for laboratory analysis and research applications
- Laboratory Grade Na2WO4 for routine analytical work and quality control
- Technical Grade Sodium Tungstate for industrial processes and manufacturing
- Research Grade Na2WO4 for specialized research and development applications
- Pharmaceutical Grade Sodium Tungstate for pharmaceutical and medical applications
- Sodium Tungstate Dihydrate for analytical chemistry and laboratory use
- Anhydrous Sodium Tungstate for specialized industrial applications
- High Purity Na2WO4 for critical analytical and research applications
- Reagent Grade Sodium Tungstate for chemical synthesis and reactions
- Catalyst Grade Na2WO4 for industrial catalytic processes
- Custom Purity Sodium Tungstate for specific application requirements
- Bulk Industrial Na2WO4 for large-scale manufacturing operations
- Laboratory Reagent Sodium Tungstate for educational and training applications
- Ultra-Pure Na2WO4 for semiconductor and electronics applications
- Certified Reference Material Sodium Tungstate for calibration purposes
Specialized Application Solutions:
- Analytical method development and validation services
- Catalytic process design and optimization consulting
- Chemical synthesis route development and scale-up
- Quality control system implementation and training
- Tungsten chemistry research and development support
- Analytical troubleshooting and method optimization
- Regulatory compliance assistance and documentation
- Custom packaging solutions and inventory management
- Process troubleshooting and performance enhancement
- Training programs for analytical and industrial applications
- Research collaboration and technical partnerships
- Environmental analysis and monitoring services
Analytical Chemistry Applications
Gravimetric Analysis Analytical laboratories utilize Sodium Tungstate for gravimetric determination of various metals, precipitation reactions, and quantitative analysis requiring analytical grade specifications. Analytical chemists employ Na2WO4 for phosphorus determination, protein precipitation applications requiring selective precipitation, metal separation procedures, and quantitative analytical methods with typical recovery rates exceeding 99.5% for precise analytical performance.
Spectroscopic Analysis Spectroscopic laboratories use Sodium Tungstate for atomic absorption spectroscopy, inductively coupled plasma analysis, and spectroscopic applications requiring spectroscopic grade specifications. Spectroscopic analysts employ Na2WO4 for matrix modification, interference suppression applications requiring chemical control, background correction, and analytical enhancement in advanced spectroscopic techniques.
Electrochemical Analysis Electroanalytical facilities utilize Sodium Tungstate for electrochemical sensors, voltammetric analysis, and electrochemical applications requiring electrochemical grade specifications. Electrochemists employ Na2WO4 for electrode modification, electrocatalysis applications requiring enhanced activity, sensor development, and electroanalytical method development.
Clinical Analysis Clinical laboratories use Sodium Tungstate for protein analysis, clinical chemistry, and diagnostic applications requiring clinical grade specifications. Clinical chemists employ Na2WO4 for protein precipitation, sample preparation applications requiring clean separation, enzymatic analysis, and clinical diagnostic procedures.
Industrial Catalysis Applications
Oxidation Catalysis Industrial catalysis facilities utilize Sodium Tungstate for selective oxidation, epoxidation reactions, and catalytic processes requiring catalytic grade specifications. Catalytic engineers employ Na2WO4 for olefin oxidation, alcohol oxidation applications requiring high selectivity, chemical synthesis, and industrial oxidation processes with typical conversion rates exceeding 95% for efficient catalytic performance.
Polymerization Catalysis Polymer manufacturing facilities use Sodium Tungstate for metathesis polymerization, polymer synthesis, and polymerization applications requiring polymer grade specifications. Polymer chemists employ Na2WO4 for catalyst preparation, ring-opening metathesis applications requiring controlled polymerization, polymer modification, and specialty polymer production.
Hydroprocessing Catalysis Petrochemical facilities utilize Sodium Tungstate for hydrodesulfurization, hydrotreating, and refinery applications requiring refinery grade specifications. Refinery engineers employ Na2WO4 for catalyst preparation, hydroprocessing applications requiring sulfur removal, fuel purification, and petroleum refining processes.
Fine Chemical Synthesis Fine chemical manufacturing facilities use Sodium Tungstate for pharmaceutical intermediates, specialty chemicals, and synthesis applications requiring synthesis grade specifications. Synthetic chemists employ Na2WO4 for catalytic synthesis, organic transformations applications requiring precise control, drug intermediate production, and fine chemical manufacturing.
Chemical Manufacturing Applications
Tungsten Compound Production Chemical manufacturing facilities utilize Sodium Tungstate for tungsten metal production, tungsten compound synthesis, and metallurgical applications requiring metallurgical grade specifications. Metallurgical engineers employ Na2WO4 for tungsten extraction, metal recovery applications requiring efficient processing, alloy production, and tungsten metallurgy with typical metal recovery exceeding 98% for effective tungsten processing.
Phosphate Analysis Chemical analysis laboratories use Sodium Tungstate for phosphate determination, water analysis, and environmental applications requiring environmental grade specifications. Environmental chemists employ Na2WO4 for phosphate precipitation, water testing applications requiring accurate determination, environmental monitoring, and pollution control analysis.
Textile Industry Textile manufacturing facilities utilize Sodium Tungstate for fabric treatment, dyeing processes, and textile applications requiring textile grade specifications. Textile engineers employ Na2WO4 for mordanting, fabric preparation applications requiring uniform treatment, dye fixation, and textile processing enhancement.
Ceramic Industry Ceramics production facilities use Sodium Tungstate for ceramic glazes, refractory materials, and ceramics applications requiring ceramics grade specifications. Ceramics engineers employ Na2WO4 for glaze formulation, ceramic modification applications requiring enhanced properties, refractory production, and advanced ceramics manufacturing.
Research Applications
Materials Science Research Research institutions utilize Sodium Tungstate for nanomaterial synthesis, materials characterization, and research applications requiring research grade specifications. Materials scientists employ Na2WO4 for nanoparticle synthesis, thin film deposition applications requiring controlled growth, material modification, and advanced materials research.
Biochemical Research Biochemical laboratories use Sodium Tungstate for enzyme studies, protein research, and biochemical applications requiring biochemical grade specifications. Biochemical researchers employ Na2WO4 for enzyme inhibition, protein isolation applications requiring selective precipitation, biochemical analysis, and life science research.
Environmental Research Environmental research facilities utilize Sodium Tungstate for pollution studies, environmental analysis, and research applications requiring environmental research specifications. Environmental scientists employ Na2WO4 for contamination analysis, remediation studies applications requiring accurate measurement, environmental monitoring, and pollution research.
Pharmaceutical Research Pharmaceutical research laboratories use Sodium Tungstate for drug development, pharmaceutical analysis, and research applications requiring pharmaceutical research specifications. Pharmaceutical researchers employ Na2WO4 for drug synthesis, analytical method development applications requiring validation, pharmaceutical analysis, and drug discovery research.
Quality Control & Testing
Comprehensive Quality Assurance Every production batch undergoes extensive testing to ensure compliance with sodium tungstate standards, analytical requirements, industrial specifications, and international quality standards. Our quality control laboratory employs advanced analytical techniques including ICP-OES analysis, gravimetric methods, and comprehensive performance evaluation.
Quality assurance procedures include:
- Na2WO4 content determination using gravimetric analysis
- WO3 content analysis using ICP-OES and titration methods
- Moisture content measurement using Karl Fischer titration
- Insoluble matter determination using filtration methods
- pH measurement using calibrated pH meters and buffer solutions
- Chloride analysis using ion chromatography and titration
- Sulfate determination using gravimetric and IC methods
- Heavy metals analysis using ICP-MS techniques
- Iron content measurement using spectrophotometric methods
- Particle size analysis using laser diffraction methods
- Solubility testing using standardized dissolution protocols
- Thermal stability testing using thermogravimetric analysis
- Purity verification using multiple analytical techniques
- Performance validation using standard analytical procedures
- Container compatibility testing using extraction studies
- Analytical performance testing using certified reference materials
- Precision and accuracy validation using statistical methods
- Method validation using international guidelines
- Stability testing using accelerated aging protocols
Storage & Handling Procedures Implement proper storage conditions including temperature control, humidity protection, moisture barrier maintenance, inert atmosphere storage, and comprehensive safety procedures for maintaining Sodium Tungstate quality and ensuring safe handling throughout storage and application periods.
Environmental & Safety Compliance
Laboratory Safety Standards Sodium Tungstate complies with laboratory safety regulations, OSHA laboratory standards, international safety guidelines, and analytical chemistry safety protocols ensuring safe use in laboratory applications with established safety criteria and comprehensive safety assessments for analytical operations.
Industrial Safety Standards Adherence to industrial safety regulations, EPA industrial standards, international industrial guidelines, and occupational safety requirements ensures appropriate use in industrial applications with established safety protocols and workplace safety assessments for manufacturing operations.
Environmental Protection Standards Environmental compliance includes environmental fate assessment, biodegradability studies, and ecosystem safety evaluation ensuring responsible use with consideration for environmental protection and minimal ecological impact from industrial and research applications.
Chemical Safety Standards Chemical safety compliance includes exposure limit establishment, health hazard assessment, and chemical safety protocols ensuring safe workplace conditions with established safety measures and health monitoring programs.
Performance Benefits
✔ Superior Analytical Performance – Exceptional precision with >99.5% purity available
✔ Excellent Solubility – High water solubility (74+ g/100g) for easy preparation
✔ Outstanding Stability – Excellent thermal and chemical stability
✔ High Catalytic Activity – Effective catalyst for oxidation reactions
✔ Clean Reactions – Minimal interference in analytical procedures
✔ Versatile Applications – Suitable for analytical, industrial, and research use
✔ Reliable Performance – Consistent results across different applications
✔ Multiple Grades – Various purity levels for specific requirements
✔ Quality Assured – Comprehensive testing and certification
✔ Technical Support – Expert application guidance and troubleshooting
✔ Regulatory Compliance – Meets international analytical standards
✔ Cost Effective – Economical tungsten source for various applications
✔ Global Availability – Reliable supply chains worldwide
✔ Custom Solutions – Tailored products for specific applications
✔ Documentation – Complete analytical certificates and technical data
Our Sodium Tungstate products represent industry-leading standards in analytical chemicals and industrial catalyst technology, specifically manufactured for demanding analytical chemistry applications, industrial catalytic systems, chemical synthesis operations, and research projects requiring exceptional analytical performance, catalytic activity, and comprehensive performance optimization. We provide complete technical support, application guidance, and performance consultation to ensure optimal results across your specialized analytical chemistry, industrial catalysis, chemical manufacturing, or research applications.
For detailed specifications, technical data sheets, or application-specific recommendations, contact our specialized tungsten compounds division. We offer complete support including product selection, method development, application optimization, regulatory guidance, performance monitoring, and technical assistance to maximize effectiveness in your analytical chemistry, industrial catalysis, chemical manufacturing, or research applications.
For more information about our products, feel free to Contact Us today.
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