Dipotassium hydrogen phosphate, triwater is one of the potassium acid salts produced by phosphoric acid. It is a deliquescent white powder, soluble in water, and the aqueous solution is weakly alkaline.

It is a versatile inorganic salt with applications spanning various industries. It is valued for its buffering properties in laboratory settings and its role in agricultural and pharmaceutical applications. The compound exhibits stability under normal conditions and poses minimal environmental hazards when used responsibly.

General Information

Compound Type: Inorganic salt
CAS Number: 16788-57-1
EC Number: 231-907-0
Molecular Weight: 228.22 g/mol
Molecular Formula: K2HPO4·3H2O
MDL Number: MFCD00149926
Grade: AR
Packaging: 500g×20 bottles/case
Brand: KeSci

General Information

Potassium Phosphate Dibasic is an important inorganic salt used in various laboratory and industrial applications.

Brand and Packaging

• Brand: KeSci
• Packaging: 500g×20 bottles/case

Physical Properties

• Appearance: White crystalline powder
• Density: ~2.34 g/cm³
• Solubility: Soluble in water
• Melting Point: Decomposes above 134 °C

Structural Formula

Structure: K2HPO4·3H2O

| **Chemical Information** |                      |
|--------------------------|----------------------|
| **Product Name**         | Potassium dihydrogen phosphate trihydrate |
| **Molecular Formula**    | K2HPO4·3H2O          |
| **Molecular Weight**     | 228.22 g/mol         |
| **Batch Size**           | 2000 kg              |
| **Grade**                | Analytical grade     |
| **Batch Number**         | 2022111001           |
| **Report Date**          | 2022.11.14           |

| **Analysis Results**         | **Standard Requirement** | **Measured Result** |
|--------------------------|--------------|--------------|
| Heavy metals (as Pb),%      | ≤0.001       | ＜0.001       |
| Arsenic (As),%              | ≤0.0001      | ＜0.0001      |
| Iron (Fe),%                 | ≤0.001       | ＜0.001       |
| Sodium (Na),%               | ≤0.05        | 0.03         |
| Magnesium (Mg),%            | ≤0.001       | 0.00008      |
| Sulfate (SO4),%             | ≤0.01        | ＜0.01        |
| Nitrate (NO3),%             | ≤0.001       | ＜0.001       |
| Insoluble matter,%          | ≤0.01        | 0.005        |
| Chloride (Cl),%             | ≤0.002       | ＜0.002       |
| pH (50g/L,25℃)             | 8.9–9.4      | 9.2          |
| Clarity test                | Qualified    | Qualified    |
| Purity,%                    | ≥99.0        | 99.6         |
| Appearance                  | White crystals | White crystals |

### Conclusion:
Meets the requirements of HG/T3487-2000 for analytical grade.

Contact us

Xiongda Chemical provides more than 10,000 kinds of general organic reagents, inorganic reagents, analytical pure reagents, superior pure reagents, color pure reagents, high purity agents, small three types of reagents, reference reagents, environmental protection reagents, broad spectrum fungicides and other chemical reagents. If interested, please contact us for a quote. Contact Us