Sodium molybdate
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| Sodium molybdate | |
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| General | |
| Systematic name | Sodium molybdate(VI) |
| Other names | Disodium molybdate. |
| Molecular formula | Na2MoO4 |
| Molar mass | 206 g/mol |
| Appearance | White powder. |
| CAS number | [7631-95-0] |
| Properties | |
| Density and phase | 3.78 g/cm3, solid |
| Solubility in water | 65.5 g/100 g Water |
| Melting point | 687°C |
| Boiling point | ?°C |
| Basicity (pKb) | N/A |
| Hazards | |
| MSDS | External MSDS |
| EU classification | Irritant (I) |
| R-phrases | R36, R37, R38. |
| S-phrases | None listed. |
| NFPA 704 | N/A |
| Flash point | Non-flammable. |
| Lethal doses (anhydrous) | |
| 3/4 hours inhalation-rat LC50 | >2080 mg/m |
| ORAL-RAT LD50 | 4000 mg/kg |
| subcutaneous-mouse LD50 | 570 mg/kg |
| intravenous-cat LD50 | 917 mg/kg |
| intraperitoneal-mouse LD50 | 303 mg/kg |
| intraperitoneal-rat LD50 | 576 mg/kg |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Other anions | None listed. |
| Other cations | None listed. |
| Related bases | None listed. |
| Related compounds | None listed. |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Sodium molybdate, Na2MoO4, is useful as a source of molybdenum.
It is often found as the dihydrate, Na2MoO4 . 2H2O. It is also used in biochemistry and medicinal chemistry to track various organic chemicals that are colourless after a chromatographical procedure, which it always stains it blue. The blue colour is also called molybdenum blue. It is a complex of molybdates(VI, V).
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