
Sodium molybdate dihydrate is an inorganic molybdenum compound and the disodium salt of molybdic acid with the chemical formula Na₂MoO₄·2H₂O. It is also known as molybdic acid disodium salt dihydrate and typically occurs as a white crystalline solid. The compound crystallizes in an orthorhombic structure with the Pbca space group and is readily soluble in water. Sodium molybdate dihydrate is an important source of molybdenum ions in scientific research. Its molybdate chemistry is relevant to studies involving molybdenum as a trace element and its involvement in biological processes such as nitrogen fixation and nitrate reduction.

CAS No.: 10102-40-6
Synonyms: Molybdic acid sodium salt dihydrate, Sodium Molybdenum Oxide Dihydrate.
| Physical Properties | |
| Chemical formula | H4MoNa2O6 |
| IUPAC Name | disodium;dioxido(dioxo)molybdenum;dihydrate |
| Molecular weight | 241.96 g/mol |
| Solubility | Highly soluble in water |
| Density | 2.37 g/cm3 |
| Appearance | White crystalline powder |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | White |
| Physical State | Solid |
| Melting Point | 100 °C |
| Ph | 7.0-10.5 |
| Odor | Odorless |
| Pictograms : | ![]() |
| Hazard Statements : | H332: Harmful if inhaled |
| Precautionary Statements: | P261: Avoid breathing dust. P271: Use only outdoors or in a well-ventilated area Response Statements: P304+P340: IF INHALED: Remove person to fresh air and keep at rest in a position comfortable for breathing. P312: Call a POISON CENTER or doctor if you feel unwell. |
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Sodium molybdate dihydrate is an inorganic molybdenum compound and the disodium salt of molybdic acid with the chemical formula Na₂MoO₄·2H₂O. It is also known as molybdic acid disodium salt dihydrate and typically occurs as a white crystalline solid. The compound crystallizes in an orthorhombic structure with the Pbca space group and is readily soluble in water. Sodium molybdate dihydrate is an important source of molybdenum ions in scientific research. Its molybdate chemistry is relevant to studies involving molybdenum as a trace element and its involvement in biological processes such as nitrogen fixation and nitrate reduction.

CAS No.: 10102-40-6
Synonyms: Molybdic acid sodium salt dihydrate, Sodium Molybdenum Oxide Dihydrate.
| Physical Properties | |
| Chemical formula | H4MoNa2O6 |
| IUPAC Name | disodium;dioxido(dioxo)molybdenum;dihydrate |
| Molecular weight | 241.96 g/mol |
| Solubility | Highly soluble in water |
| Density | 2.37 g/cm3 |
| Appearance | White crystalline powder |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | White |
| Physical State | Solid |
| Melting Point | 100 °C |
| Ph | 7.0-10.5 |
| Odor | Odorless |
| Pictograms : | ![]() |
| Hazard Statements : | H332: Harmful if inhaled |
| Precautionary Statements: | P261: Avoid breathing dust. P271: Use only outdoors or in a well-ventilated area Response Statements: P304+P340: IF INHALED: Remove person to fresh air and keep at rest in a position comfortable for breathing. P312: Call a POISON CENTER or doctor if you feel unwell. |
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It is used as a source of molybdenum, phosphatase inhibitor, agricultural micronutrient, corrosion inhibitor, and precursor for molybdenum-containing materials. It is also employed in analytical chemistry and catalyst research.
Sodium Molybdate Dihydrate is readily soluble in water that enables it to provide molybdate ions in aqueous laboratory, agricultural and industrial formulations.
Sodium molybdate dihydrate is also known as molybdic acid disodium salt dihydrate or disodium molybdate dihydrate. Its chemical formula is Na₂MoO₄·2H₂O. The term dihydrate indicates that two water molecules are associated with each formula unit of sodium molybdate.