Potassium Phosphate Dibasic Trihydrate,
1 Kilogram
RP-P99430-1000.0

Potassium Phosphate Dibasic Trihydrate,
1 Kilogram
RP-P99430-1000.0

Research or further manufacturing use only, not for food or drug use.

CAS Number: 16788-57-1

Molecular Weight: 228.23

Chemical Formula: K2HPO4 • 3H2O

Potassium phosphate dibasic trihydrate, often abbreviated as K2HPO4·3H2O, is a crystalline solid that is highly soluble in water.

In research settings, it is primarily utilized as a buffer component in biological and biochemical experiments. As a buffer, potassium phosphate dibasic helps maintain a stable pH environment in solutions, which is crucial for many biological reactions and processes. It is particularly useful in maintaining physiological pH ranges for cell culture media, enzyme assays, and molecular biology techniques like DNA and protein purification.

Additionally, potassium phosphate dibasic can also serve as a source of phosphate ions in cell culture media and molecular biology applications. Phosphate ions play essential roles in cellular metabolism, signaling pathways, and nucleic acid structure, making this compound valuable for studies involving cell growth, differentiation, and gene expression.

Appearance: White crystalline highly hygroscopic crystals Assay: ≥ 98.0 % Identification: Pass Test pH of 0.1M solution @25 oC: 9.0 - 9.4 Insoluble Matter: ≤ 0.01 % Chloride (Cl): ≤ 0.003 % Heavy Metals (as Pb): ≤ 0.005 % Iron: ≤ 0.001 % Nitrogen Compound (as N): ≤ 0.001 % Sodium (Na): ≤ 0.05 % Sulfate (SO4): ≤ 0.005 %