Sodium Dichromate Dihydrate

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Description

Sodium dichromate is the inorganic compound with the formula Na2Cr2O7. Usually, however, the salt is handled as its dihydrate Na2Cr2O7·2H2O.Virtually all chromium ore is processed via conversion to sodium dichromate and virtually all compounds and materials based on chromium are prepared from this salt. Formula Cr2H4Na2O9 Molar mass 297.995 g/mol CAS Number 7789-12-0 Density 2.350 g/cm3 Purity/Grade ≥99.5% (ACS Reagent) Appearance Crystal Flash point not applicable Melting point/freezing point Melting point/range: 91°C (196°F) – lit.

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