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POTASSIUM DICHROMATE Extra Pure

Potassium bichromate

COAs

Packings

500 g (00500)

1000 g (01000)

2500 g (02500)

25 Kg (0025K)

50 Kg (0050K)

1PB1200500 1PB1200750 1PDL00030K 1PDL00040K
Print friendly version
Article No. 05354 Grade Extra Pure
Purity 99.5% CAS No. 7778-50-9
Molecular Formula K2Cr2O7 Molecular Weight 294.18
H.S. Code 2841.5090 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Orange Crystalline
Odour Odorless pH value 4.04 (1% aq. solution)
Melting point/ Freezing point [°C] 398 °C Boiling point [°C] 500°C
Density [g/cm3] 2.676 Solubility in water [% weight] 6.5% at 20 °C
Partition coefficient Log Pow octanol / water at 20°C 5

Specifications

Appearance Orange crystalline powder Assay (iodometric) Min 99.5%
Chloride (Cl) Max 0.005% Sulphate (SO4) Max 0.01%
Calcium (Ca) Max 0.005% Sodium (Na) Max 0.2%
Loss on drying (at 105°C) Max 0.5%

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: H317-H330-H314-H410-H334-H340-H350-H312-H372-H360FD-H301-H272-H335
 Precaution Statement: P301 + P310-P280-P302 + P350-P305 + P351 + P338-P304 + P341- P221-P273
Revision Date: 18-Jun-2016

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