| CAS No.: | 333-20-0 |
| Molecular Weight: | 97.18 g/mol (anhydrous); 94.13 g/mol (dihydrate) g/mol |
| Chemical Formula | KSCN |
Properties and Specifications of Potassium Thiocyanate or Potassium Rhodanide:
Appearance: Colorless deliquescent crystals.
Odor: Odorless
pH: 5.3 - 8.7
Relative density: 1.9
Melting point: 173C.
Boiling point: 500C (decomposes).
Solubility: Soluble in water, acetone ethanol.
Assay by AgNO3 Titration: 99% minimum on dry basis.
Insoluble matter: 0.005% maximum.
Chloride: 0.05% maximum.
Iron (Fe): 5 ppm maximum.
Heavy Metal as Lead: 10 ppm maximum.
Sulfate: 0.05% maximum.
Potassium Thiocyanate Reagent Grade Specifications:
KSCN --- Formula Wt 97.18
CAS Number 333-20-0
REQUIREMENTS
Appearance: Colorless or white crystals
Assay: 98.5% KSCN
pH of a 5% solution: 5.3-8.7 at 25C.
MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Chloride (Cl): 0.005%
Sulfate (SO4): 0.005%
Ammonium (NH4): 0.003%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 2 ppm
Sodium (Na): 0.005%
Iodine-consuming substances: Passes test.
