Ammonium Heptamolybdate (CAS NO : 12054-85-2)

Our chemical purification processes are tightly regulated to govern the presence of heavy metals and detrimental anions such as Silicon (Si), Phosphate (PO3-4 ), and heavy transition metals. Controlling these impurities is critical; during the preparation of petroleum catalysts, trace silicon or phosphorus can prematurely alter the structural pore distribution of the alumina support, leading to reduced catalytic activity and accelerated fouling. Upon thermal calcination (> 450°C), our AHM decomposes smoothly, driving off volatile ammonia and water while leaving behind a highly reactive, pure molybdenum trioxide (MoO3) layer with zero carbonaceous residue. This guarantees predictable solid-state cross-linking, optimized surface area properties, and zero processing interruptions.

Unlike sodium-based salts which leave behind permanent alkali metal residues, AHM is chosen because its counter-ions are entirely volatile. During the calcination step of catalyst manufacturing, AHM undergoes clean thermal decomposition, releasing gaseous ammonia (NH3) and water vapor (H2O). This leaves a pure, highly porous phase of molybdenum trioxide (MoO3) actively bound to the catalyst substrate. Our AHM- Catalyst Pure grade is produced under strict crystallization conditions to ensure an optimal crystal structure that releases these gases uniformly, preventing structural stress or fracturing within the catalyst carrier pores.

Trace elements alter the active surface energy of transition metal salts. In hydrotreating catalysts, minute silicon or phosphate impurities lead to structural defects or block active metal-sulfide site formations during sulfidation. In electronic targets, trace silicon results in phase boundaries that increase thin-film electrical resistance. Our advanced chemical precipitation controls keep silicon to ≤ 0.001% and phosphates to < 0.0005% in our premium grades. This rigorous impurity management provides a clean technical baseline, securing maximum performance in refinery and electronics settings.

Ammonium Heptamolybdate is a water-soluble, white crystalline molybdenum salt used primarily as a catalyst in the petrochemical industry and a reagent in analytical chemistry for detecting phosphates

This compound is widely used in the petrochemical, agrochemical, metal finishing, ceramic, and pharmaceutical industries

It is highly soluble in water and is typically used in aqueous solutions, foliar sprays, plating baths, and liquid-phase catalyst synthesis protocols

Standard specifications include CAS numbers 12027-67-7 and 12054-85-2, high purity (assay ≥99%), and documentation such as COA, TDS, impurity reports, and regulatory compliance documents

Scimplify has capabilities for global distribution and custom synthesis through an integrated network of manufacturers and logistics partners with reliable lead time

The product is export ready with a standard MOQ starting from 100 kgs, with lead times for international customers depending on the shipping destination and specific grade.