Packings
05852
Article No. 05852
Purity 99.5%
Molecular Formula Na2Cr2O7.2H2O
H.S. Code 2841.3000
Grade AR/ACS
CAS No. 7789-12-0
Molecular Weight 298
Shelf Life 60 Months

Physical Properties

Specifications

Safety Information and Hazard Symbols

Symbol:


Physical Properties

Physical state at 20 °C Solid Colour Orange Crystalline
Odour Odorless pH value 3.5-4.0
Melting point/ Freezing point [°C] 91 °C Vapour density 10
Density [g/cm3] 2.35 Solubility in water [% weight] Soluble in water (73%)

Specifications

Appearance Orange crystalline powder Assay (iodometric) 99.5 - 100.5%
Insoluble matter Max 0.005% Chloride (Cl) Max 0.005%
Sulphate (SO4) Max 0.01% Calcium (Ca) Max 0.003%
Aluminium (Al) Max 0.002% Magnesium (Mg) Max 0.005%
Potassium (K) Max 0.01%

Safety Information and Hazard Symbols

Flame Over Circle Skull and Crossbones Corrosion Environment Health Hazard      

Symbol: GHS03, GHS05, GHS06, GHS08, GHS09
Signal Word: Danger
UN No.: 3087
IMCO Class No.: 5.1 (6.1)
Packing Group: II
Hazardous Statement: H340-H317-H330-H334-H314-H312-H350-H410-H360FD-H372-H301-H272-H335
Precaution Statement: P280-P305+P351+P338-P310-P301+P330+P331-P303+P361+P353-P273