Potassium Carbonate K2CO3 is an inorganic compound. Its molecular formula is K2CO3, and its molecular weight is about 138.21. Potassium carbonate is a white crystalline powder with a density of about 2.43g/cm3 and a melting point of 891°C. The substance is easily soluble in water to form an alkaline aqueous solution, but is insoluble in ethanol, acetone and ether. Potassium carbonate has strong hygroscopicity. When exposed to air, it can absorb carbon dioxide and water and gradually turn into potassium bicarbonate, so it usually needs to be sealed to ensure its stability.
Features
High purity and low impurity content
Potassium Carbonate K2CO3 is known for its excellent purity. The potassium carbonate content in the premium grade is as high as 99.0% and above, far exceeding the general industrial standard. This high purity ensures the high efficiency and stability of the product in different applications. At the same time, the content of impurities such as chloride (KCl), sulfur compounds (K2SO4) and iron is strictly controlled at an extremely low level. For example, the chloride content does not exceed 0.01%, avoiding the potential interference of impurities on product performance and improving the application effect in glass manufacturing, detergent production and other fields.
Excellent buffering performance, adjusting the pH value of the solution
As a strong base and weak acid salt, potassium carbonate has excellent buffering properties in its aqueous solution. Within a specific pH range, potassium carbonate can effectively resist the effect of the addition of acid or alkali on the pH value of the solution, thereby maintaining the acid-base balance of the system. This feature is particularly important in industries such as pharmaceuticals and food processing that require precise control of the pH value of the solution, which helps to improve the stability and safety of the product.
High-efficiency thermal stability and chemical stability
Potassium carbonate has good thermal stability at high temperatures and is not easy to decompose or deteriorate, which enables it to maintain stable performance in high-temperature processes such as glass melting and ceramic sintering. At the same time, potassium carbonate also exhibits excellent chemical stability and is not easy to react with other chemicals, ensuring reliable application in different chemical environments.
Good dispersibility and solubility, improve reaction efficiency
Potassium carbonate has good dispersibility and solubility in water and other solvents, and can be quickly and evenly dispersed in the solution. This property helps to speed up the chemical reaction rate and improve the reaction efficiency, especially in the process of synthesizing ammonia decarbonylation and preparing potassium salts, the solubility and dispersibility of potassium carbonate are crucial to the smooth progress of the reaction.
Product Specification
Standard: GB/T 1587-2000
|
Item |
Unit |
Superior grade |
TV glass grade |
First grade |
Qualified grade |
|
Assay (K2CO3) |
% ≧ |
99.0 |
99.0 |
98.5 |
96.0 |
|
Chloride (KCl) |
% ≦ |
0.01 |
0.03 |
0.10 |
0.20 |
|
Sulfur compound (K2SO4) |
% ≦ |
0.01 |
0.04 |
0.10 |
0.15 |
|
Iron |
% ≦ |
0.001 |
0.001 |
0.003 |
0.010 |
|
Water insoluble matter |
% ≦ |
0.02 |
0.04 |
0.05 |
0.10 |
|
Loss on ignition |
% ≦ |
0.6 |
0.8 |
1.00 |
1.00 |
Packing, Storage, Handling and Transportation
Packing: Plastic bag lined woven bag or plastic-paper bag, Net wt. 25/500/ 1000KG or according to the clients' requirements.
Storage: Sealed in cool and dry places, avoid rain and insolation.
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