Description

Diammonium Tetratungsten Tridecaoxide is an inorganic ammonium tungstate compound with the chemical formula (NH₄)₂W₄O₁₃. This specialized tungsten precursor is valued for its role in producing high-purity tungsten compounds and advanced materials. It is primarily utilized in the chemical manufacturing, catalysis, and materials science research sectors where controlled tungsten sources are required.

Application

• Precursor for Tungsten Compounds: Serves as a key intermediate in the synthesis of high-purity tungsten oxides, tungstates, and other tungsten-based chemicals.
• Catalyst Preparation: Used in the formulation of catalysts for petrochemical and fine chemical processes.
• Advanced Ceramics & Materials: A source material for producing tungsten-containing ceramics, coatings, and functional materials.
• Laboratory Research: Employed as a standardized reagent in inorganic chemistry and materials science research and development.
• Electrochemical Applications: Investigated for use in electrode materials and energy storage systems.
• Flame Retardant Additive: Can be utilized as a component in flame-retardant formulations for polymers and textiles.

Basic Information

Product Name	Diammonium Tetratungsten Tridecaoxide
CAS No.	12398-61-7
Molecular Formula	(NH₄)₂W₄O₁₃
Molecular Weight	Contact for details
Synonyms	Ammonium Tetratungstate; Diammonium Tetratungstate; Ammonium Tungstate (meta); (NH4)2W4O13; Ammonium Paratungstate Intermediate; APT Derivative; Ammonium Polytungstate; Tungsten Ammonium Oxide
EINECS	Contact for details

Quality Control

Our Diammonium Tetratungsten Tridecaoxide is manufactured under controlled conditions to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a series of analytical tests including assay, identification, and impurity profiling. A Certificate of Analysis (COA) documenting key specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. This material is hygroscopic (moisture-sensitive) and must be kept under conditions that minimize exposure to atmospheric humidity to prevent caking or degradation. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms
Assay (as (NH₄)₂W₄O₁₃)	≥ 98.0%
Tungsten (W) Content	Contact for details
Loss on Drying	≤ 2.0%
Insoluble Matter	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.