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Sodium Chromate(Sodium Chromium Oxide) (Na2CrO4)-Powder

Sodium Chromate(Sodium Chromium Oxide) (Na2CrO4)-Powder

CAS: 7775-11-3
Molecular Formula: Na2CrO4
Purity: 99.9%
Products Code: TR11240800UN
Specification Model: - 100 mesh
EINECS No.: 231-889-5
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Sodium Chromate(Sodium Chromium Oxide) (Na2CrO4)-Powder introduce:

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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