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7775-11-3
Na2CrO4
11240800PD
99.9%
- 100 mesh
231-889-5
Characteristic
Sodium chromate is the inorganic compound with the formula Na2CrO4. It exists as a yellow hygroscopic solid, which can form tetra-, hexa-, and decahydrates. It is an intermediate in the extraction of chromium from its ores.
Chemical formula:Na2CrO4
Molar mass: 161.97 g/mol
Appearance: yellow crystals
Odor: odorless
Density: 2.698 g/cm3
Melting point: 792 °C (1,458 °F; 1,065 K) (anhydrous) 20 °C (decahydrate)
Solubility in water:31.8 g/100 mL (0 °C) 84.5 g/100 mL (25 °C) 126.7 g/100 mL (100 °C)
Solubility: slightly soluble in ethanol
Solubility in methanol: 0.344 g/100 mL (25 °C)
Magnetic susceptibility (χ):+55.0·10−6 cm3/mol
Crystal structure:orthorhombic
Application
Aside from its central role in the production of chromium from its ores, sodium chromate is used as a corrosion inhibitor in the petroleum industry. It is also a dyeing auxiliary in the textile industry. It is a diagnostic pharmaceutical in determining red blood cell volume.
In organic chemistry, sodium chromate is used as an oxidant, converting primary alcohols to carboxylic acids and secondary alcohols to ketones.
Characteristic
Sodium chromate is the inorganic compound with the formula Na2CrO4. It exists as a yellow hygroscopic solid, which can form tetra-, hexa-, and decahydrates. It is an intermediate in the extraction of chromium from its ores.
Chemical formula:Na2CrO4
Molar mass: 161.97 g/mol
Appearance: yellow crystals
Odor: odorless
Density: 2.698 g/cm3
Melting point: 792 °C (1,458 °F; 1,065 K) (anhydrous) 20 °C (decahydrate)
Solubility in water:31.8 g/100 mL (0 °C) 84.5 g/100 mL (25 °C) 126.7 g/100 mL (100 °C)
Solubility: slightly soluble in ethanol
Solubility in methanol: 0.344 g/100 mL (25 °C)
Magnetic susceptibility (χ):+55.0·10−6 cm3/mol
Crystal structure:orthorhombic
Application
Aside from its central role in the production of chromium from its ores, sodium chromate is used as a corrosion inhibitor in the petroleum industry. It is also a dyeing auxiliary in the textile industry. It is a diagnostic pharmaceutical in determining red blood cell volume.
In organic chemistry, sodium chromate is used as an oxidant, converting primary alcohols to carboxylic acids and secondary alcohols to ketones.
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