Sodium bismuthate is a versatile inorganic compound with the chemical formula NaBiO₃. It typically occurs as a yellowish solid and is recognized for its powerful oxidizing properties. The compound is somewhat hygroscopic and is unusual among sodium salts because it is essentially insoluble in cold water. This property can be useful in chemical reactions, as the solid reagent can be readily separated from the reaction mixture after use. The strong oxidative behavior of sodium bismuthate is associated with bismuth in the +5 oxidation state. Its combination of high oxidation strength and low aqueous solubility makes it particularly valuable as an oxidizing reagent in analytical chemistry and laboratory research.
CAS No.: 12232-99-4
Synonyms: Sodium Bismuth Oxide, sodium bismuthate(V), bismuth sodium trioxide, bismuth sodium oxide (BiNaO3), bismuthate (BiO31-), sodium oxobismuthinolate oxide.
| Physical Properties | |
| Chemical formula | BiNaO3 |
| IUPAC Name | sodium oxido(dioxo)bismuth |
| Molecular weight | 279.968 g/mol |
| Solubility | Insoluble in water |
| Density | 6.50 g/cm3 |
| Appearance | A yellowish-brown amorphous powder |
| Chemical Properties | |
| Color | Yellow |
| Physical State | Solid |
| Melting Point | >300°C |
| Odor | Slight acetic acid |
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| Pictograms : |  |
| Hazard Statements : | H302 – Harmful if swallowed |
| Precautionary Statements: | P264: Wash hands, forearms and face thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P301+P312: IF SWALLOWED: Call a POISON CENTRE or doctor if you feel unwell |
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Sodium bismuthate is a versatile inorganic compound with the chemical formula NaBiO₃. It typically occurs as a yellowish solid and is recognized for its powerful oxidizing properties. The compound is somewhat hygroscopic and is unusual among sodium salts because it is essentially insoluble in cold water. This property can be useful in chemical reactions, as the solid reagent can be readily separated from the reaction mixture after use. The strong oxidative behavior of sodium bismuthate is associated with bismuth in the +5 oxidation state. Its combination of high oxidation strength and low aqueous solubility makes it particularly valuable as an oxidizing reagent in analytical chemistry and laboratory research.
CAS No.: 12232-99-4
Synonyms: Sodium Bismuth Oxide, sodium bismuthate(V), bismuth sodium trioxide, bismuth sodium oxide (BiNaO3), bismuthate (BiO31-), sodium oxobismuthinolate oxide.
| Physical Properties | |
| Chemical formula | BiNaO3 |
| IUPAC Name | sodium oxido(dioxo)bismuth |
| Molecular weight | 279.968 g/mol |
| Solubility | Insoluble in water |
| Density | 6.50 g/cm3 |
| Appearance | A yellowish-brown amorphous powder |
| Chemical Properties | |
| Color | Yellow |
| Physical State | Solid |
| Melting Point | >300°C |
| Odor | Slight acetic acid |
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| Pictograms : | |
| Hazard Statements : | H302 – Harmful if swallowed |
| Precautionary Statements: | P264: Wash hands, forearms and face thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P301+P312: IF SWALLOWED: Call a POISON CENTRE or doctor if you feel unwell |
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Sodium bismuthate is mainly used as a strong oxidizing reagent in analytical chemistry and organic synthesis. It is useful for detecting trace manganese in steel, iron and ores. It is also employed in spectrophotometric analysis and the preparation of specialized chemicals and bismuth-based materials.
Sodium bismuthate (NaBiO₃) is a strong oxidizing agent because bismuth is present in the +5 oxidation state. It readily accepts electrons and is reduced to the more stable +3 oxidation state and allow it to oxidize other substances.
