Potassium Dihydrogen Phosphate Merck

Potassium Dihydrogen Phosphate Merck – Cat. No. 104873 (KH₂PO₄)

A white, odorless inorganic salt composed of potassium and phosphate, supplied in analytical grade.

🔹 Physical and Chemical Properties:

• Chemical formula: KH₂PO₄
• Molar mass: 136.09 g/mol
• Appearance: White crystalline powder
• Solubility: Soluble in water (~208 g/L)
• pH of 5% solution: ~4.2–4.6
• Density: ~2.33 g/cm³
• Stability: Stable under normal conditions

🔹 Uses:

• Buffer in biochemical and molecular biology experiments
• Preparation of phosphate buffer solutions (PBS)
• Cell culture, chemical analyses, and sample preparations
• Source of phosphorus and potassium in food and agriculture

⚠️ Safety Notes:

• Generally safe, avoid eye and skin contact
• Wear gloves and safety goggles
• Store in a dry environment at room temperature