Description

Silicomolybdic Acid CAS NO 11104-89-5 is a heteropoly acid of molybdenum and silicon, valued for its strong acidic and catalytic properties. This compound is a critical reagent and catalyst precursor in various chemical synthesis and industrial processes. It is primarily sought by manufacturers and research facilities in the chemical catalyst, analytical reagent, and specialty chemical sectors.

Application

• As a catalyst or catalyst precursor in organic synthesis and oxidation reactions.
• As an analytical reagent for the detection and determination of phosphates, silicates, and other anions.
• In the formulation of corrosion inhibitors and surface treatment agents.
• As a mordant in dyeing and textile processing applications.
• For the precipitation and purification of proteins and alkaloids in biochemical research.
• In the manufacturing of pigments and other specialty inorganic materials.
• As a component in ion-exchange membranes and conductive materials.

Basic Information

Product Name	Silicomolybdic Acid
CAS No.	11104-89-5
Molecular Formula	H4Mo12O40Si (typically hydrated)
Molecular Weight	Contact for details
Synonyms	Molybdosilicic Acid; Silicon Molybdate; Dodecamolybdosilicic Acid; 12-Molybdosilicic Acid; Molybdenum Silicon Oxide; Heteropoly Acid H4SiMo12O40; Keggin-type Silicomolybdate
EINECS	234-336-0

Quality Control

Our Silicomolybdic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent composition, purity, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, moisture content, and trace impurities are available upon request 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 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. Keep away from incompatible materials such as strong bases and organic solvents.

Specification

Item	Specification
Appearance	Yellow to greenish-yellow crystalline powder
Identification (IR)	Conforms
Assay (as H4SiMo12O40·xH2O)	≥ 98.0 %
Loss on Drying	Contact for details
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 0.002 %

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