What Is Ammonium Perrhenate?

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Ammonium perrhenate (CAS 13598-65-7) appears as white, flaky crystals or fine powder. It dissolves poorly in cold water but mixes readily with hot water. The substance melts at 365°C. When the temperature hits 353°C, it starts to break down and release ammonia gas. It keeps stable in strong alkaline solutions, yet its oxidizing activity is not as strong as potassium permanganate.

This chemical sees wide use in industrial production. It is a key raw material to produce platinum-rhenium bimetallic reforming catalysts and rhenium metal powder and also works as an additive for rhenium-containing alloys. High-purity grades are adopted to make rhenium targets and standard solutions. Since ammonium perrhenate is an oxidizing agent, it will pose safety hazards if it comes into contact with organic substances or reducing agents or gets exposed to high heat. For proper storage, keep it in cool and well-ventilated spaces, and separate it thoroughly from all flammable goods. Besides, it is an irritant that may cause discomfort once it touches human skin, eyes, or respiratory tract.

Ammonium Perrhenate Properties

Safety Information

Ammonium Perrhenate Uses

Industrial Applications

Ammonium perrhenate is the key raw material for producing metallic rhenium powder. By subjecting ammonium perrhenate to sequential decomposition and reduction processes, high-purity metallic rhenium powder can be produced. This product can be further processed into various high-performance rhenium alloys and rhenium compounds. Additionally, ammonium perrhenate is commonly used to produce specialty functional materials such as rhenium-tungsten wires. 

Medical Field

Ammonium perrhenate is also widely used in the pharmaceutical industry. In drug synthesis, it serves both as an oxidizing agent and as a catalyst, playing a key role in the preparation of various pharmaceuticals. In addition, many drugs with specific pharmacological effects—such as anticancer drugs—are produced using ammonium perrhenate.

Environmental Protection

The popularity of ammonium perrhenate in the environmental protection sector continues to grow. When used in wastewater treatment, it acts as an oxidizing and catalytic agent to break down organic matter and pollutants in water, thereby purifying the water.