Description

Ammonium Phosphotungstate Trihydrate is an inorganic heteropoly acid salt with significant catalytic and analytical utility. This compound is valued for its role as a versatile precursor and reagent in advanced material synthesis and chemical processes. It is primarily sought by industries involved in catalysis, materials science, and specialized analytical chemistry for applications requiring high-purity tungsten-based compounds.

Application

• Catalysis: Acts as a precursor or catalyst in organic synthesis and oxidation reactions.
• Material Science: Used in the preparation of tungsten-based materials, coatings, and nanocomposites.
• Analytical Chemistry: Serves as a reagent for the precipitation and detection of alkaloids and other organic bases.
• Photocatalysis: Investigated for use in photocatalytic systems for environmental remediation.
• Electrochemistry: Employed in the development of electrodes and electrochemical sensors.
• Corrosion Inhibition: Studied as a potential component in corrosion-resistant formulations.

Basic Information

Product Name	Ammonium Phosphotungstate Trihydrate
CAS No.	12704-02-8
Molecular Formula	H7N3O43PW12 • 3H2O or (NH4)3[PW12O40] • 3H2O
Molecular Weight	~3079.14 g/mol (Trihydrate)
Synonyms	Ammonium Phosphotungstate; Ammonium 12-Tungstophosphate; Ammonium Tungstophosphate; Phosphotungstic Acid Ammonium Salt; Dodecatungstophosphoric Acid Ammonium Salt; PW12 Ammonium Salt; Keggin-type Heteropoly Acid Ammonium Salt; Ammonium 12-Phosphotungstate
EINECS	Contact for details

Quality Control

Our Ammonium Phosphotungstate Trihydrate is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity. Quality is verified through a suite of analytical techniques including titration, spectrophotometry, and X-ray diffraction. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to meet the stringent requirements of research and industrial applications.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (as PW12O403-)	≥ 98.0 %
Loss on Drying	≤ 3.0 %
Water Content (Karl Fischer)	Corresponds to trihydrate
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm

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