China H&Z® Potassium Ferrocyanide Factory
Potassium ferrocyanide CAS NO:14459-95-1
Potassium ferrocyanide Description
MF:C6H6FeK4N6O3
MW:422.39
Melting point:70°C(lit.)
Density:1.85
Storage temp:Store at RT.
SolubilityH2O: 0.5 M at 20°C: clear, yellow
Form :fine crystals
Color:Yellow
PH:9.5 (100g/l, H2O, 20℃)(anhydrous substance)
PH Range8 - 10 at 211 g/l at 25°C
Water Solubility :270 g/L (12ºC)
Potassium ferrocyanide is light yellow monoclinic crystal or powder, odorless, slightly salty, with a relative density of 1.85.
Potassium ferrocyanide is stable at room temperature and begins to lose crystalline water when heated to 70°C.
Potassium ferrocyanide completely loses crystalline water when heated to 100°C and becomes a white powder with hygroscopicity.
Potassium ferrocyanide Specification:
|
Item |
Specifications |
Results |
|
Appearance |
Yellow crystals |
Yellow crystals |
|
Content% ≥ |
99.00 |
99. 39 |
|
Water insolubles %≤ |
0.01 |
0.0037 |
|
Cl- %≤ |
0. 2 |
0. 06 |
|
sulfate %≤ |
0.3 |
0.10 |
|
As %≤ |
0.0001 |
< 0.0001 |
|
Conclusion |
The results conforms with Enterprise standards |
|
Potassium ferrocyanide function:
H&Z® Potassium Ferrocyanide Mainly used in production of paint, printing ink, coloring matter, pharmacy, heat treatment of metal, as anti-caking agent in salt, application in wine and food additive etc. also used in steel and leather industry.
Potassium ferrocyanide application
1. It is mainly used as carburizing agent in iron and steel industry to improve the surface hardness of iron and steel parts. Printing and dyeing industry is used as an oxidizing agent to make the dyeing of cotton cloth with sperm proceed step by step and maintain the dyeing quality. As a coagulant, the pharmaceutical industry can achieve an ideal impurity removal process and improve the quality of drugs. The pigment industry is used as the main raw material for the production of brilliant blue pigments. Chemical industry is used as iron removal agent. Food industry is used as food additive - salt anti-caking agent.
2. Potassium ferrocyanide can be used with zinc acetate as clarifier: it is the precipitation of zinc ferrocyanide produced by the reaction of zinc acetate [Zn (CH3COO) 2.2H2O] with potassium ferrocyanide to remove or adsorb interfering substances. This clarifier has strong protein removal ability, but poor decolorization ability. It is suitable for the clarification of samples with light color and high protein content, such as dairy products, soybean products, etc. It can be used for the extraction and clarification of soluble sugars.
3. As an anti-caking agent, our country stipulates that it can be used in table salt with a maximum usage of 0.005 g/kg (based on ferrocyanide). China's GB 2760-96 stipulates that salt is allowed as an anti-caking agent. The maximum usage was 0.01g/kg (based on ferrocyanide). Addition in salt, dosage 0.01g/kg (calculated by ferrocyanide). When used in practice, water solution with concentration of 0.25-0.5g/100mL can be prepared and sprayed into 100kg salt. Potassium ferrocyanide is often used as iron and copper removal agent in wine in Europe.
4. It is often used in some wines in Europe to remove iron and copper.
