CONTENT
Chapter 1: Ammonium Metatungstate Introduction
1.1 Definition and Importance of Ammonium Metatungstate
1.2 Ammonium Metatungstate Role in the Tungsten Industry Chain
1.3 CTIA GROUP Ammonium Metatungstate Specification
1.4 Significance and Structure of This Book
Chapter 2: Ammonium Metatungstate Chemical Nature
2.1 Ammonium Metatungstate Molecular Structure and Composition
2.2 Ammonium Metatungstate Physical Properties
2.3 Ammonium Metatungstate Chemical Properties
2.4 AMT Comparison with APT
2.5 Practical Significance
Chapter 3: Ammonium Metatungstate Preparation Process
3.1 Ammonium Metatungstate Raw Material Sources
3.2 Ammonium Metatungstate Main Preparation Methods
3.2.1 Ion Exchange Method
3.2.2 Acidification Method
3.2.3 Thermal Decomposition Method
3.3 Ammonium Metatungstate Industrial Production Process
3.4 Ammonium Metatungstate Technical Challenges and Optimization
3.5 Ammonium Metatungstate Laboratory vs. Industrial Scale
3.6 Practical Significance
Chapter 4: Ammonium Metatungstate Analysis and Testing
4.1 Ammonium Metatungstate Chemical Composition Analysis
4.1.1 Determination of Tungsten Content
4.1.2 Determination of Ammonium Content
4.1.3 Impurity Analysis
4.2 Ammonium Metatungstate Physical Property Testing
4.2.1 Crystal Structure Analysis
4.2.2 Particle Size Distribution
4.2.3 Moisture Content
4.3 Ammonium Metatungstate Quality Standards
4.4 Comparison of Testing Techniques
4.5 Case Studies
Chapter 5: Ammonium Metatungstate Industrial Applications
5.1 Ammonium Metatungstate Catalyst Preparation
5.1.1 Hydrodesulfurization Catalysts
5.1.2 Other Catalysts
5.2 Tungsten Compound Production
5.2.1 Tungsten Trioxide (WO₃)
5.2.2 Tungsten Powder and Coatings
5.3 Ammonium Metatungstate Special Applications
5.3.1 Electrochemical Materials
5.3.2 Pigments and Ceramics
5.3.3 Flame Retardants
5.4 AMT Comparison with APT Applications
5.5 Case Studies
5.5.1 Catalyst Production Case Study
5.5.2 Thermal Spraying Coating Case Study
5.5.3 Electrochromic Devices Case Study
5.6 Practical Significance
Chapter 6: Ammonium Metatungstate Market and Economy
6.1 Ammonium Metatungstate Global Production
6.2 Ammonium Metatungstate Price Trends
6.3 Ammonium Metatungstate Supply and Demand Analysis
6.3.1 Demand Drivers
6.3.2 Supply Bottlenecks
6.4 Major Manufacturers: CTIA GROUP LTD
6.5 Economic Impact
6.5.1 Contribution to the Tungsten Industry Chain
6.5.2 Regional Economic Impact
6.5.3 Future Economic Potential
6.6 Practical Significance
Chapter 7: Ammonium Metatungstate Environment and Safety
7.1 Ammonium Metatungstate Environmental Impact
7.1.1 Impact of Tungsten Mining
7.1.2 Waste in the Production Process
7.1.3 Potential Risks During Use
7.2 Ammonium Metatungstate Environmental Protection Measures
7.2.1 Wastewater Treatment
7.2.2 Exhaust Gas Control
7.2.3 Solid Waste Management
7.3 Ammonium Metatungstate Safety Regulations
7.3.1 Toxicity of AMT
7.3.2 Operational Safety
7.3.3 Transportation Safety
7.4 Ammonium Metatungstate Regulations and Standards
7.4.1 Chinese Regulations
7.4.2 International Standards
7.5 Case Studies
7.5.1 Practices of CTIA GROUP LTD
7.6 Ammonium Metatungstate Sustainability Challenges and Prospects
7.7 Practical Significance
7.8 Safety Data Sheet for Ammonium Metatungstate (AMT) from CTIA GROUP LTD
Chapter 8: Ammonium Metatungstate Research Frontiers and Future Prospects
8.1 Ammonium Metatungstate New Preparation Technologies
8.1.1 Green Synthesis
8.1.2 Nano-AMT Preparation
8.2 Ammonium Metatungstate Emerging Applications
8.2.1 Energy Sector
8.2.2 Smart Materials
8.2.3 Biomedical Applications
8.3 Ammonium Metatungstate Interdisciplinary Research
Chapter 1: Ammonium Metatungstate Introduction
1.1 Definition and Importance of Ammonium Metatungstate
Ammonium Metatungstate (AMT), with the chemical formula (NH₄)₆H₂W₁₂O₄₀·xH₂O, is a crucial tungstate compound known for its high water solubility and chemical stability, securing a unique position in tungsten chemistry and industrial applications. As a white or slightly yellow crystalline powder, AMT exhibits exceptional solubility in water (approximately 300g WO₃/100ml H₂O at 25°C), distinguishing it significantly from Ammonium Paratungstate (APT), which only shows improved solubility under acidic conditions. The emergence of AMT has not only enriched the research on poly-tungstates but also provided a flexible raw material choice for industrial production, demonstrating great potential in catalyst preparation, tungsten compound synthesis, and emerging energy materials.
The history of AMT dates back to the early 20th century when the advancement of tungsten chemistry led scientists to recognize the structural and functional diversity of poly-tungstates. Compared to APT, which has long been the mainstream intermediate in tungsten metallurgy, AMT was developed relatively later. However, its unique water solubility quickly made it the preferred material for specific applications. For instance, in the petrochemical industry, AMT serves as a key precursor for the preparation of high-efficiency hydrodesulfurization catalysts; in the electronics industry, it is used in the production of high-purity tungsten trioxide (WO₃), which is further applied in electrochromic devices and photocatalytic materials. In this sense, the development of AMT not only encapsulates the progress of tungsten chemistry but also reflects the growing industrial demand for high-performance materials.
1.2 Ammonium Metatungstate Role in the Tungsten Industry Chain
Although AMT does not hold as fundamental a position as APT in the tungsten industry chain, its significance cannot be overlooked. Tungsten, as a rare metal, is indispensable in aerospace, defense, electronics, and energy sectors due to its high melting point (3422°C), high density (19.25 g/cm³), and excellent corrosion resistance. Within the processing chain from tungsten ore to final products, AMT acts as a “bridge,” transforming the chemical potential of tungsten into practical applications. Unlike APT, AMT can be directly used in solution systems without requiring high-temperature decomposition or complex dissolution processes, making it particularly valuable in fine chemicals and nanomaterials. Furthermore, the production and application of AMT contribute to the efficient utilization of tungsten resources. With increasing environmental concerns, research into green synthesis technologies for AMT has gained significant attention.
1.3 CTIA GROUP Ammonium Metatungstate Specification
CTIA GROUP LTD Ammonium Metatungstate COA
CTIA GROUP LTD Ammonium Metatungstate SEM
READ MORE: Encyclopedia of Ammonium Metatungstate
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