Synonyms: potassium sulphocyanate, potassium thiocyanate
Chemical formula: KCNS
International name: POTASSIUM THIOCYANATE
CAS No.: 333-20-0
Grade: import, AR, GOST 4139-75
Appearance: colorless crystals in white mass
Potassium rhodanate (potassium sulphocyanate, potassium thiocyanate) KCNS is colorless crystals of monoclinic system spreading in humid air. At 430°C, the preparation gets blue, upon cooling down, it discolors again. At 500°, it disintegrates. Potassium rhodanate is very soluble in water and ethyl alcohol. When crystalizing potassium rhodanate solutions at a low temperature, crystallohydrate KNCS·0.5H2O is produced.
Production
Potassium rhodanate can be produced by interaction of ammonia rhodanate with potassium hydroxide: NH4NCS + KOH = KNCS + NH3b + H2O
Application
Potassium rhodanate (sulphocyanate, thiocyanate) KCNS is used as follows:
- in textile industry,
- in photography,
- in organic synthesis (e.g. for production of thiourea, artificial mustard oil or dyers), for production of thiocyanates, coolants mixtures, insecticides, etc.
|
Name |
Grade |
Packing |
Measurement Unit |
|
Potassium rhodanate |
import |
1 |
kg |
|
Potassium rhodanate |
import |
25 |
kg |