This product is orange prism crystal, de watering and becoming brown non-water matter with temperature 84.6°C. It is easy to adsorbed moisture and dissolved into water and not dissolved into alcohol, having high moisture absorption and strong oxidizability, connecting with organic substance and causing inflammation. It must be stored in hermeticallysealed chamber. This product has toxicity.

Product Name:Sodium dichromate
Other names Chromic acid, (H2Cr2O7), disodium salt

Identifiers
CAS number 10588-01-9 Y,
7789-12-0 (dihydrate)
PubChem 25408
EC number 234-190-3

UN number 3288
RTECS number HX7750000
HX7750000 (dihydrate)

Properties
Molecular formula Na2Cr2O7
Molar mass 261.97 g/mol (anhydrous)
298.00 g/mol (dihydrate)
Density 2.52 g/cm3
Melting point 356.7 °C
dehydrates at 100 °C
 
Boiling point decomposes 400 °C
 
Solubility in water 730 g/L at 25 °C