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Sinobio Chemical Metal Corrosion Inhibitor Ammonium Molybdate Tetrahydrate CAS 12054-85-2

Name: Sinobio Chemical Metal Corrosion Inhibitor Ammonium Molybdate Tetrahydrate CAS 12054-85-2
Brand: Sinobio
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Product name: Ammonium molybdate tetrahydrate
Alias: Ammonium molybdate tetrahydrate, Ammonium molybdate tetrahydrate heptamolybdate
Molecular Formula: (NH₄)₆Mo₇O₂₄-4H₂O
Molecular Weight: 1235.8575

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Model:
Ammonium Molybdate Tetrahydrate
Brand:
Sinobio
Code:
2841701000

Sinobio Chemical Metal Corrosion Inhibitor Ammonium Molybdate Tetrahydrate

CAS 12054-85-2

Ammonium Molybdate Tetrahydrate (Ammonium molybdate tetrahydrate) is an important inorganic compound, the following is a detailed introduction about it:

Basic Information

Product name: Ammonium molybdate tetrahydrate

Alias: Ammonium molybdate tetrahydrate, Ammonium molybdate tetrahydrate heptamolybdate

Molecular Formula: (NH₄)₆Mo₇O₂₄-4H₂O

Molecular Weight: 1235.8575

CAS No.: 12054-85-2

EINECS No.: 234-320-9

Melting point: 190°C

MDL：MFCD00167059

Physical and Chemical Properties

Appearance: Colorless or light yellowish green monoclinic crystalline

Relative Density: 2.498

Solubility: Soluble in water, strong acids and alkali solutions, insoluble in ethanol

Thermal stability: Loss of 1 water of crystallization when heated to 90 ℃, decomposed into ammonia, water and molybdenum trioxide at 190 ℃

Weatherability: placed in the air is easy to weathering, loss of part of the ammonia

Ammonium Molybdate Tetrahydrate Uses

1. Catalyst: Used as a catalyst in the petroleum industry to promote reactions such as oil cracking.

2. Metallurgical industry: used for the production of molybdenum, is an important raw material for the extraction of molybdenum elements.

3. Chemical raw materials: is the manufacture of ceramic glaze, pigment and other molybdenum compounds raw materials.

4. Analytical reagent:

*Used as reagent for determination of phosphate, nickel, germanium, selenium dioxide, arsenate and lead.

*Used for color layer analysis, separation and identification of components in mixtures.

*In molybdenum blue method for the determination of soil and plant phosphorus content, as well as serum inorganic phosphorus, alkaline phosphatase activity.

white powder

Item	Specification
Appearance	White Crystalline Powder
Mo%	≥54
(NH4)6Mo7O24*4H2O content%	≥99
Application Industry	Industry
Usage	Positive Catalyst
Molecular Weight	1235.8575
Melting Point	190 Degrees Celsius

Ammonium Molybdate Tetrahydrate (AMT) is a key intermediate in molybdenum chemical industry. Its largest applications are in petroleum catalysis and metallurgy, and it is also widely used in analysis, agriculture, electronics, surface treatment, ceramic pigments, etc.

1. Petrochemical Industry (Largest Application, 38%–42% of Total Demand)

Precursor for hydrodesulfurization (HDS) / hydrorefining catalysts
Impregnated on Al₂O₃ support together with Co or Ni salts to form Co-Mo/Al₂O₃, Ni-Mo/Al₂O₃ catalysts, used for desulfurization, denitrification, and demetallization of heavy oil to produce clean gasoline and diesel.
Other catalysis:
Raw material for molybdenum-based catalysts in methanol synthesis, coal chemical gasification, olefin disproportionation, and organic oxidation reactions.

2. Metallurgy & Materials (About 30%)

Raw material for molybdenum metal and molybdenum alloys
Thermally decomposed to produce MoO₃, then reduced by hydrogen to molybdenum powder, molybdenum bars, molybdenum billets for molybdenum wires, molybdenum targets, and high-temperature alloys.
Additive for steel alloys:
Used to produce ferromolybdenum, added to stainless steel, tool steel, heat-resistant steel to improve strength, corrosion resistance, and high-temperature stability.
Powder metallurgy:
Used in molybdenum-based composites, cemented carbides, welding electrodes, thermocouple wires.

3. Analytical Testing (Laboratory & Industrial Quality Control)

Classic molybdenum blue method: Determination of phosphorus, silicon, arsenic in water, soil, fertilizer, and steel.
Metal ion detection: Precipitant for Pb²⁺, Hg²⁺, Bi³⁺, and alkaloids.
Biochemical analysis: Used for serum inorganic phosphorus, alkaline phosphatase, glucose oxidase assays.
Chromatography & color reagent: Thin-layer chromatography, colorimetric analysis, quantitative detection of phosphorus and silicon in steel.

4. Agriculture (Molybdenum Fertilizer, Annual Demand ~5,000 Tons)

Trace element fertilizer: Molybdenum is a core component of nitrogenase and nitrate reductase in legumes.
Application methods: Seed dressing, seed soaking, foliar spray to improve yield and nitrogen fixation capacity of soybeans, peanuts, broad beans, alfalfa, etc.

5. Electronics & New Energy (Fast-Growing, 15% in 2023)

Sputtering targets & semiconductor films:
High-purity AMT is used to produce MoO₃, MoS₂, molybdate thin films for electrodes in photovoltaics, LEDs, displays, and semiconductors.
Batteries & catalysis:
Used to prepare Mo-N co-doped TiO₂, MoO₂/MoS₂-based materials for lithium batteries and supercapacitors, as well as photocatalytic degradation catalysts.
Ceramics & glass: Molybdate phosphors, colorants for special glass, ceramic substrates.

6. Metal Surface Treatment & Corrosion Protection

Chromium-free passivation: Passivation solution for galvanized steel, aluminum, stainless steel, replacing chromate to form corrosion-resistant molybdate conversion coating.
Phosphating / blackening: Oxidizer for steel phosphating solution, black passivator for galvanized layers.
Corrosion inhibitor: Molybdenum-based corrosion inhibitors for circulating water and metalworking fluids.

7. Ceramics, Pigments & Flame Retardants

Ceramic glazes & pigments: Molybdenum red, molybdenum yellow, molybdenum blue and other high-temperature pigments for ceramics, enamel, glass coloring.
Flame retardants: Halogen-free flame retardants for engineering plastics, rubber, coatings with good smoke suppression and thermal stability.
Other molybdenum compounds: Raw material for sodium molybdate, calcium molybdate, bismuth molybdate, praseodymium molybdate, etc.

8. Other Applications

Pharmaceutical & biochemical: Enzyme inhibitors, radioactive molybdenum sources, biological probes.
Environmental protection: Phosphorus removal from wastewater, heavy metal capture, additives for flue gas denitrification catalysts.
Electroplating: Molybdate electroplating, metal coloring, brush plating.