Ammonium Molybdate – 500 gram Packs

Ammonium Molybdate is an inorganic molybdenum-containing ammonium salt used in analytical chemistry, inorganic chemistry practicals, and scientific research. The name commonly refers to ammonium heptamolybdate tetrahydrate, with the chemical formula (NH₄)₆Mo₇O₂₄·4H₂O and a formula mass of approximately 1235.93 g/mol. It is generally a white crystalline solid that dissolves in water under suitable conditions and provides molybdate species for chemical reactions. Ammonium Molybdate is particularly important in qualitative and quantitative analytical procedures involving phosphate detection, where molybdate-based reactions produce characteristic reaction products. It is also relevant to university chemistry experiments, analytical reagent preparation, and research involving molybdenum chemistry. This 500 g pack is intended for laboratory applications where the compound’s identity, grade, and specifications meet the requirements of the procedure. Appropriate storage and handling help maintain reagent condition and support responsible laboratory use.

Product Specifications

Specification	Details
Appearance	White crystalline powder
Assay	99%
Chemical Name	Ammonium Molybdate Tetrahydrate
Alternate Names	Ammonium Heptamolybdate Tetrahydrate, Ammonium Paramolybdate Tetrahydrate, Ammonium Molybdate(VI) Tetrahydrate
Molecular Formula	(NH₄)₆Mo₇O₂₄·4H₂O
Empirical Formula	H₄₄Mo₇N₆O₂₈
CAS Number	12054-85-2
Molecular Weight	1235.93 g/mol
Grade	LR Laboratory Reagent

Key Features of Ammonium Molybdate

• Defined inorganic composition: Commonly supplied as ammonium heptamolybdate tetrahydrate, containing ammonium and molybdate species.
• Water-soluble crystalline reagent: Dissolves in water under suitable conditions to prepare solutions for analytical and educational procedures.
• Relevance to phosphate analysis: Used in established analytical reactions involving phosphate and molybdate under controlled acidic conditions.
• Characteristic tetrahydrate formula: The tetrahydrate has the formula (NH₄)₆Mo₇O₂₄·4H₂O and a formula mass of approximately 1235.93 g/mol.
• Educational and research applications: Supports appropriate inorganic chemistry experiments, analytical procedures, and molybdenum-related investigations when specifications meet method requirements.

Laboratory Applications of Ammonium Molybdate

• Qualitative phosphate detection: Used in appropriate analytical procedures to identify phosphate through the formation of molybdate-containing reaction products under specified conditions.
• Quantitative phosphate determination: Applied in established analytical methods that measure the response produced by phosphate–molybdate reactions.
• Inorganic chemistry practicals: Supports supervised college and university experiments involving molybdate ions, inorganic salts, and characteristic chemical reactions.
• Analytical reagent preparation: Used to prepare molybdate-containing solutions for laboratory procedures that specifically require ammonium molybdate.
• Scientific research: Used in selected investigations involving molybdenum chemistry, reaction behaviour, and analytical method development, subject to method-specific requirements.

Why Choose Lab Wale to Buy Ammonium Molybdate

Lab Wale provides a convenient sourcing option for laboratory chemicals and scientific supplies used by schools, colleges, universities, research centres, and analytical laboratories. When purchasing Ammonium Molybdate, checking the chemical identity, hydrate form, CAS number, assay, and grade helps ensure that the reagent matches the intended procedure. Clear product identification and access to relevant technical and safety information support informed purchasing decisions. Laboratories should confirm method compatibility and follow appropriate storage and handling practices when using molybdate-containing reagents.

Frequently Asked Questions About Ammonium Molybdate

What is Ammonium Molybdate used for in laboratories?

Ammonium Molybdate is used in inorganic chemistry experiments, phosphate detection, quantitative phosphate analysis, and the preparation of molybdate-containing reagents. It is also relevant to research involving molybdenum chemistry. Its suitability depends on the chemical form, analytical procedure, and required reagent specifications.

What are the molecular formula and molecular weight of Ammonium Molybdate Tetrahydrate?

The molecular formula is (NH₄)₆Mo₇O₂₄·4H₂O, and its formula mass is approximately 1235.93 g/mol. The formula includes four waters of crystallization. Anhydrous ammonium molybdate has a different composition and formula mass, so the exact chemical form should be confirmed when selecting a laboratory reagent.

What is the CAS number of Ammonium Molybdate Tetrahydrate?

The CAS Registry Number for Ammonium Molybdate Tetrahydrate is 12054-85-2. It is also known as ammonium heptamolybdate tetrahydrate or ammonium paramolybdate tetrahydrate. This identifier helps distinguish it from anhydrous forms and other molybdenum-containing compounds.

How is Ammonium Molybdate used in phosphate analysis?

In suitable analytical procedures, ammonium molybdate reacts with phosphate under controlled acidic conditions to form molybdate-containing products. Depending on the method, these products may produce a measurable colour response or another analytical signal. Reagent concentrations and reaction conditions should follow the established procedure.

How should Ammonium Molybdate be stored and handled safely?

Store Ammonium Molybdate in a tightly closed container in a cool, dry location and protect it from contamination. Wear suitable gloves, protective clothing, and safety goggles, and avoid inhaling dust. Consult the current Safety Data Sheet for specific hazards, handling precautions, and waste-disposal requirements.

Storage Conditions for Ammonium Molybdate

Store Ammonium Molybdate Tetrahydrate in a tightly closed, compatible container in a cool, dry, well-ventilated area at the recommended ambient temperature. Protect the material from contamination and unnecessary moisture exposure. Keep it away from incompatible chemicals, avoid excessive heating, and close the container promptly after dispensing. Follow the storage recommendations specified in the current Safety Data Sheet.

Precautions for Handling Ammonium Molybdate

Review the current Safety Data Sheet before use and wear suitable chemical-resistant gloves, protective clothing, and safety goggles. Avoid generating or inhaling dust and prevent contact with the eyes and skin. Use adequate ventilation when weighing the solid or preparing solutions. Avoid contact with incompatible substances, follow approved spill-response and waste-disposal procedures, and ensure appropriate supervision during educational laboratory experiments.