پتاسیم هیدروژن کربنات
Chemical formula | KHCO3 |
Molar mass | 100.12 g/mol |
HS Code | 2836000 |
CAS number | 298-14-6 |
EC number | 206-059-0 |
Storage | without limitations |
SDS | available |
RTECS | FG1840000 |
Odour | odourless |
Form | solid |
Color | white |
p H value | 8.0 – 8.6 (50 g/l 20°C) |
Solubility in water | 333 g/l (20°C) |
Solubility in ethanol | insoluble |
Melting point | decomposition |
Thermal decomposition | ~200 °C |
Assay | ≥ | 99 | % |
Description | Conforms | ||
Identification | Conforms | ||
Chloride | ≤ | 0/001 | % |
Sulfate | ≤ | 0.001 | % |
Heavy metals | ≤ | 0/001 | % |
Total nitrogen | ≤ | 0/001 | % |
Phosphate & silicate | ≤ | 0/001 | % |
Aluminium | ≤ | 0/0005 | % |
Calcium | ≤ | 0/0005 | % |
Iron | ≤ | 0/0005 | % |
Sodium | ≤ | 0/02 | % |
Loss on drying | ≤ | 0/3 | % |
Normal carmbonate | ≤ | 2/5 | % |
Potassium hydrogen carbonate, also known as potassium bicarbonate, is an inorganic compound with the chemical formula KHCO₃. It appears as a white, odorless, crystalline solid and is commonly used as a buffering agent, leavening agent, and fire suppressant.
🏭⚗️ Production
Potassium bicarbonate is produced by reacting potassium carbonate with carbon dioxide and water. This process yields potassium bicarbonate as a solid that can be filtered and dried for commercial use.
🔬 Properties
Potassium bicarbonate is a white, slightly basic, water-soluble salt. It decomposes when heated above 100 °C, releasing carbon dioxide and forming potassium carbonate. It is stable under normal conditions and exhibits mild alkalinity in aqueous solutions. It is non-flammable and generally regarded as safe.
🧪 Applications
• Used as a leavening agent in baking, particularly as a low-sodium alternative to sodium bicarbonate.
• Acts as a buffering agent in pharmaceuticals and personal care products.
• Employed as a fire suppressant, especially in dry chemical fire extinguishers for Class B and C fires.
• Used in agriculture as a fungicide and to adjust pH in soil and hydroponic systems.
• Occasionally used in carbonated beverages and dietary supplements as a source of potassium.
