Description

Diammonium Tridecaoxotetramolybdate(2-) is a high-purity molybdenum compound, also known as ammonium paramolybdate. This specialized inorganic salt is a critical precursor and catalyst component in advanced material synthesis and industrial chemical processes. It is essential for manufacturers and R&D facilities in the chemical, petrochemical, and materials science sectors requiring a reliable source of high-quality molybdenum.

Application

• Catalyst Precursor: A key starting material for synthesizing hydrodesulfurization (HDS) and other molybdenum-based catalysts used in petroleum refining and chemical manufacturing.
• Corrosion Inhibitor: Used in formulations for protecting metals, particularly in cooling water systems and industrial coatings.
• Ceramic & Pigment Production: Serves as a source of molybdenum oxide in the manufacture of specialized ceramics, glass, and inorganic pigments.
• Flame Retardant & Smoke Suppressant: Incorporated into polymer and textile formulations to enhance fire resistance properties.
• Analytical Reagent: Employed in laboratory settings for chemical analysis and as a standard in spectroscopic applications.
• Electroplating & Surface Treatment: Used in electroplating baths to deposit molybdenum-containing alloys for wear and corrosion resistance.
• Agricultural Additives: Acts as a micronutrient source in specialized fertilizers and agricultural chemicals.
• Research & Development: Fundamental material for exploring new catalytic processes, nanomaterials, and inorganic compounds in academic and industrial R&D.

Basic Information

Product Name	Diammonium Tridecaoxotetramolybdate(2-)
CAS No.	12207-64-6
Molecular Formula	(NH4)2Mo4O13 • 2H2O (common hydrated form)
Molecular Weight	663.87 g/mol (for dihydrate)
Synonyms	Ammonium Paramolybdate; Ammonium Octamolybdate; Diammonium Tetramolybdate; Ammonium Molybdate(VI); Tetraammonium Octamolybdate; APM; Molybdate(2-), tridecaoxotetra-, diammonium; Molybdenum ammonium oxide
EINECS	235-365-1

Quality Control

Our Diammonium Tridecaoxotetramolybdate(2-) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications for consistency and performance. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment to guarantee supply reliability and product integrity for your critical processes.

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 material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation. Keep away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (as MoO3)	≥ 81.0 %
Purity (by ICP)	≥ 99.0 %
Ammonium (NH4+) Content	5.0 - 6.5 %
Chloride (Cl)	≤ 0.005 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 0.001 %
Loss on Drying	≤ 1.0 %
Solubility (in water)	Clear, colorless solution

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