ChemicalBook > CAS DataBase List > Sodium molybdate

Sodium molybdate

Product Name: Sodium molybdate
CAS No.: 7631-95-0
Chemical Name: Sodium molybdate
Synonyms: SODIUM MOLYBDENUM OXIDE;Disodium molybdate;molybdic;Natriummolybdat;Sodium molybdat;SODIUM MOLYBDATE;disodiummolybdate;SodiumMolybdateGr;Sodamidemolybdate;SODIUMMOLYBDENATE
CBNumber: CB4765741
Molecular Formula: MoNa2O4
Formula Weight: 205.91714
MOL File: 7631-95-0.mol

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Sodium molybdate Property

Melting point:: 687 °C (lit.)
Density: 3.78 g/mL at 25 °C (lit.)
refractive index: 1.714
storage temp.: Store at 4°C, protect from light, stored under nitrogen
solubility: insoluble in EtOH; insoluble in DMSO; ≥20.6 mg/mL in H2O
form: Powder
Specific Gravity: 3.28
color: White
Odor: odorless
Water Solubility: It is soluble in water.
Sensitive: Hygroscopic
Merck: 14,8645
Exposure limits: ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 1000 mg/m3
Stability:: Stable. Incompatible with strong oxidizing agents.
InChIKey: TVXXNOYZHKPKGW-UHFFFAOYSA-N
CAS DataBase Reference: 7631-95-0(CAS DataBase Reference)
NIST Chemistry Reference: sodium molybdate(VI)(7631-95-0)
EPA Substance Registry System: Disodium molybdate (7631-95-0)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36
WGK Germany: 1
RTECS: QA5075000
TSCA: Yes

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H303May be harmfulif swallowed

H332Harmful if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 243655
Product name: Sodium molybdate
Purity: ≥98%
Packaging: 5g
Price: $64.5
Updated: 2025/07/31

Sigma-Aldrich

Product number: 243655
Product name: Sodium molybdate
Purity: ≥98%
Packaging: 100g
Price: $105
Updated: 2025/07/31

Strem Chemicals

Product number: 93-1160
Product name: Sodium molybdate, anhydrous, 98+%
Packaging: 100g
Price: $47
Updated: 2024/03/01

Strem Chemicals

Product number: 93-1160
Product name: Sodium molybdate, anhydrous, 98+%
Packaging: 500g
Price: $189
Updated: 2024/03/01

Sigma-Aldrich

Product number: 737860
Product name: Sodium molybdate
Purity: anhydrous, powder, 100 mesh particle size, 99.9% trace metals basis
Packaging: 5g
Price: $42.4
Updated: 2025/07/31

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Sodium molybdate Chemical Properties,Usage,Production

Chemical Properties

Sodium molybdate is the sodium salt of molybdic acid. It forms white, rhombic crystals that are sparingly soluble in water and insoluble in acetone. Crystallization from an alkaline aqueous solution (pH above 8) yields the dihydrate, which appears as white rhombohedral crystals with a relative density of 3.28. In this structure, the molybdate anion (MoO₄²⁻) exhibits a regular tetrahedral coordination. Upon heating to 100°C, the dihydrate loses two water molecules to form the anhydrous compound. The anhydrous form is readily soluble in water but insoluble in ethyl acetate.

Gradually acidifying a sodium molybdate solution to lower its pH induces the polymerization of molybdate ions, forming various polymolybdates such as sodium dimolybdate, trimolybdate, tetramolybdate, octamolybdate, and decamolybdate.
Although molybdenum can form compounds in oxidation states from zero to +6, only the hexavalent molybdate compounds are stable. The primary ore for producing molybdate raw materials is molybdenite (MoS₂).

Uses

Reagent in analytical chemistry, paint pigment, production of molybdated toners and lakes, metal finishing, brightening agent for zinc plating, corro- sion inhibitor, catalyst in dye and pigment produc- tion, additive for fertilizers and feeds, micronutri- ent.

Uses

Sodium Molybdate is used in method for preparing fermentation medium with reduced color and viscosity.

Uses

Sodium molybdate (Na₂MO₄) may be used as an electrolyte additive, for use in electrochemical capacitors. Addition of Na₂MO₄as an electrolyte additive may result in enhanced capacitance, corrosion prevention and stabilized performance.
It may also be used as a catalyst during the manufacture of paints and dyes.

Preparation

Sodium molybdate dihydrate, which is obtained by evaporating an aqueous solution of molybdenum trioxide and sodium hydroxide, can be converted to the anhydrous form by heating at 100 °C.

Definition

ChEBI: Sodium molybdate (anhydrous) is an inorganic sodium salt having molybdate as the counterion. It has a role as a poison and a NMR chemical shift reference compound. It contains a molybdate.

General Description

Sodium molybdate has corrosion resistant properties. On heating, it undergoes degradation and releases Na₂O fumes.

Hazard

Irritant.

Flammability and Explosibility

Non flammable

reaction suitability

reagent type: catalyst
core: molybdenum

Agricultural Uses

Sodium molybdate (NazMoO4-2H2O), which is an important molybdenum source, is applied along with other fertilizers or as a foliar spray (with 39% molybdenum). Sodium molybdate is the sodium salt of molybdic acid. Fusing molybdenum oxide with sodium carbonate or hydroxide makes sodium molybdate.
Molybdenum is an essential component of the enzyme nitrate reductase which catalyzes the conversion of nitrate (NO₃^-) to nitrite (NO₂^-). It is also a component of the nitrogenase enzyme involved in nitrogen fixation by root nodule bacteria of leguminous crops. Soaking seeds in sodium molybdate solution (made with slurry or dust) before sowing is an effective seed treatment. Sodium molybdate, the most commonly used fertilizer supplying molybdenum, is used as foliar spray, or in mixed fertilizers. It is also used in seed treatment.

Biological Activity

sodium molybdate is an acid phosphatase inhibitor. the osteoclastic acid phosphatase isoenzyme, secreted by osteoclasts, is a member of a widely-distributed class of iron-containing proteins with acid phosphatase activity. elevated plasma isoenzyme levels are associated with increased bone turnover in metabolic disease. by inhibiting this class of acid phosphatases, sodium molybdate is capable of abolishing bone resorption. in addition, sodium molybdate has been shown to stabilize the nonactivated glucocorticoid-receptor complex.1. zaidi m, moonga b, moss dw, et al. inhibition of osteoclastic acid phosphatase abolishes bone resorption. biochemical and biophysical research communications, 1989, 159(1): 68-71.2. denis m, wikström ac, gustafsson ja. the molybdate-stabilized nonactivated glucocorticoid receptor contains a dimer of mr 90,000 non-hormone-binding protein. journal of biological chemistry, 1987, 262(24): 11803-11806.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by subcutaneous and intravenous routes. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Na2O. See also MOLYBDENUM COMPOUNDS.

Toxics Screening Level

The screening level for the elemental molybdenum and insoluble molybdenum compounds is 30 μg/m3, while the screening level for soluble molybdenum compounds is 5 μg/m3 based on an 8 hour averaging time.

Sodium molybdate Preparation Products And Raw materials

Raw materials

Ammonium molybdate Molybdenum trioxide Sodium hydroxide

Preparation Products

Molybdate red 207 Pigment Fast Rose Toner Molybdate Red 107 Pigment Violet 3 CI NO 77605

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View Lastest Price from Sodium molybdate manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: Sodium molybdate 7631-95-0
Price: US $1.00-4.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 200000KG
Release date: 2025-09-11

Shaanxi Didu New Materials Co. Ltd

Product: Sodium molybdate 7631-95-0
Price: US $1.50/g
Min. Order: 1g
Purity: 99.0% Min
Supply Ability: 100 Tons
Release date: 2025-04-29

Hebei Chuanghai Biotechnology Co., Ltd

Product: Sodium molybdate 7631-95-0
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-10-30

7631-95-0, Sodium molybdate Related Search:

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Sodium molybdate ISO 9001：2015 REACH

CAS 7631-95-0 Sodium Molybdate

Anhydrous sodium molybdate

7631-95-0

7963-95-0

Na2MoO4

Catalysis and Inorganic Chemistry

Molybdenum

Inorganic Chemicals

Inorganics

INORGANIC & ORGANIC CHEMICALS

Catalysis and Inorganic Chemistry

Chemical Synthesis

Molybdenum