Description

Ammonium Tungstate is an inorganic salt that serves as a crucial precursor for the production of tungsten metal and its compounds. Its high purity and consistent quality make it essential for advanced material synthesis and catalytic processes. This product is primarily used by manufacturers in the chemical, electronics, and metallurgical industries for applications ranging from catalysts to phosphors.

Application

• Catalyst Precursor: Used in the synthesis of catalysts for petroleum refining and chemical synthesis.
• Tungsten Compound Manufacturing: A key starting material for producing tungsten oxides, tungsten carbide, and metallic tungsten powder.
• Phosphors and Luminescent Materials: Employed in the formulation of specialty phosphors for lighting and display technologies.
• Corrosion Inhibitor: Functions as an additive in certain anti-corrosion coatings and treatments for metals.
• Analytical Reagent: Serves as a standard or reagent in analytical chemistry and laboratory research.
• Ceramic and Glass Industry: Used as a doping agent to modify the properties of ceramics and specialty glasses.
• Fireproofing Agent: Imparts flame-retardant properties to textiles and materials.
• Electroplating: Used in electroplating baths for depositing tungsten-containing alloys.

Basic Information

Product Name	Ammonium Tungstate
CAS No.	11140-77-5
Molecular Formula	(NH4)10W12O41•xH2O
Molecular Weight	Contact for details
Synonyms	Ammonium Paratungstate; Ammonium Metatungstate; Ammonium Tungstate(VI); Diammonium Tetratungstate; Tungstic Acid, Ammonium Salt; APT; AMT; UNII-9V4F8Y26WV
EINECS	234-364-9

Quality Control

Our Ammonium Tungstate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as WO3)	≥ 88.5 %
Solubility (in water)	Clear, colorless solution
Chloride (Cl)	≤ 0.005 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 0.001 %
Loss on Drying	≤ 1.5 %

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