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Potassium Dichromate, Granular, Technical
Potassium Dichromate, Granular, Technical


 


Item# Item Name Our Price Qty Add
1201081336-0025 Potassium Dichromate, Granular, Technical - 25g
$25.30
1201081336-0050 Potassium Dichromate, Granular, Technical - 50g
$31.08
1201081336-0100 Potassium Dichromate, Granular, Technical - 100g
$40.62
1201081336-0125 Potassium Dichromate, Granular, Technical - 125g
$48.22
1201081336-0500 Potassium Dichromate, Granular, Technical - 500g
$88.46
1201081336-1000 Potassium Dichromate, Granular, Technical - 1kg
$124.24
1201081336-2500 Potassium Dichromate, Granular, Technical - 2.5kg
$232.50
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Technical Specs:
Potassium dichromate
Potassium dichromate
Unit cell of potassium dichromate
IUPAC name Potassium dichromate(VI)
Other names Potassium bichromate
Identifiers
CAS number 7778-50-9
EINECS number 231-906-6
RTECS number HX7680000
Properties
Molecular formula K2Cr2O7
Molar mass 294.19 g/mol
Appearance Red-orange crystalline solid
Density 2.676 g/cm3, solid
Melting point

398C

Boiling point

500C decomp.

Solubility in water 4.9 g/100 ml (0C)
Structure
Crystal structure Triclinic (-form,<241.6 C
Coordination
geometry
Tetrahedral (for Cr)
Thermochemistry
Std enthalpy of
formation
fHo298
-2033 kJ/mol
Standard molar
entropy
So298
291,2 J.K−1.mol−1
Hazards
Main hazards Highly toxic
Carc. Cat. 1
Muta. Cat. 2
Repr. Cat. 2
Oxidant
Dangerous for
the environment
R-phrases R45, R46, R60, R61,
R8, R21, R25, R26, R34,
R42/43, R48/23, R50/53
S-phrases S53, S45, S60, S61
Flash point Non-flammable
Related compounds
Other anions Potassium chromate
Potassium molybdate
Potassium tungstate
Other cations Ammonium dichromate
Sodium dichromate
Related compounds Potassium permanganate
Except where noted otherwise, data are given for
materials in their standard state
(at 25 C, 100 kPa)

Infobox references




MSDS:


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