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Ammonium Heptamolybdate

Ammonium heptamolybdate, also known as ammonium molybdate, is a colorless, crystalline compound with the chemical formula (NH4)6Mo7O24. It is:
One of the most common molybdenum compounds
Highly soluble in water
Used in various applications, including:
Analytical chemistry: as a reagent for detecting and measuring phosphates and other substances
Fire retardants and corrosion inhibitors
Fertilizers: as a source of molybdenum, a trace element essential for plant growth

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Product Description

Ammonium heptamolybdate, with the chemical formula (NH4)6Mo7O24, is a compound consisting of ammonium ions and molybdate ions. It is commonly available as a white or slightly yellow crystalline powder.

Ammonium heptamolybdate characteristics

CAS #

12027-67-7

Chemical formula

(NH4)6Mo7O24

Shape

White or slightly yellow crystalline solid powder

Melting Point

190-200°C

Solubility

Ammonium heptamolybdate is highly soluble in water

Density

2.498 g/cm³

EINECS

237-671-6

Mo content

≥54%

Advantages for ammonium heptamolybdate:

1. Molybdenum Source: Ammonium heptamolybdate is an important source of molybdenum, a transition metal that plays a crucial role in various biological processes and industrial applications.

2. High Solubility: It exhibits high solubility in water, making it easy to dissolve and incorporate into various formulations or applications.

3. Versatile: Ammonium heptamolybdate finds applications in diverse fields including analytical chemistry, catalysis, ceramics, pigments, fertilizers, and metal finishing.

Usage for ammonium heptamolybdate:

1. Analytical Chemistry: Ammonium heptamolybdate is widely used as a reagent in analytical chemistry for the determination and quantification of various elements such as phosphorus, silicon, arsenic, and others. It forms colored complexes with these elements, allowing for their detection and measurement.

2. Catalyst: It serves as a catalyst in numerous chemical reactions, such as the selective oxidation of organic compounds or the production of acrylic acid.

3. Ceramic Glazes and Pigments: Ammonium heptamolybdate is utilized in the production of ceramic glazes and pigments, contributing to desirable colors and properties in the final products.

4. Fertilizers: As a source of molybdenum, it is incorporated into fertilizers to provide this essential nutrient to plants, aiding in their growth and development.

5. Metal Finishing: In metal finishing processes like electroplating, ammonium heptamolybdate is employed to enhance the surface properties of metals, improve corrosion resistance, and modify the appearance of finished products.

Packages instruction

1. Bags: Ammonium heptamolybdate may be packed in polyethylene bags, usually in 25 kg or 50 lb sizes. These bags provide adequate

protection against moisture and ensure easy handling.

2. Drums: For larger quantities, Ammonium heptamolybdate can be packaged in drums made of steel or fiberboard. Drum sizes can vary from 100 kg to 200 kg or more, depending on customer specifications.

3. Customized Packaging: Depending on customer requirements, Ammonium heptamolybdate can be packaged in customized containers, including, smaller plastic bottles or jars for laboratory or research purposes.