Potassium dihydrogen orthophosphate(V)
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
crystal
|
| Molecular Weight |
136.09 g/mol
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
Colorless crystal
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Basic Information
Product Name: Potassium dihydrogen orthophosphate(V)
CAS Number: 7778-77-0
Alias: Potassium dihydrogen phosphate, Monopotassium phosphate, KH2PO4
Molecular Formula: KH2PO4
Molecular Weight: 136.09 g/mol
Structural Information
- Structure Type: Inorganic phosphate salt, ionic compound.
- Structural Features: Composed of potassium ions and dihydrogen phosphate ions, stable ionic crystal structure, good water solubility.
Physical & Chemical Properties
- Appearance: Colorless crystal or white crystalline powder
- Odor: Odorless
- Melting Point: 252.6 °C
- Density: 2.338 g/cm3
- pH Value (1% Aqueous Solution): 4.2 ~ 4.6
- Solubility: Easily soluble in water; insoluble in ethanol and organic solvents
- Stability: Stable under normal temperature and dry conditions. Dehydrates at high temperature to form potassium metaphosphate.
Synthesis & Applications
Synthesis Method
Prepared by neutralization reaction of phosphoric acid and potassium hydroxide or potassium carbonate. After concentration, crystallization, filtration and drying, finished product is obtained.
Main Applications
- Fertilizer industry: High-efficiency phosphorus-potassium compound fertilizer, widely used for crops and soilless culture.
- Food industry: Food additive, used as buffering agent, leavening agent and nutritional supplement.
- Pharmaceutical & biochemical: Buffer solution preparation, culture medium raw material and analytical reagent.
- Industrial field: Water treatment agent, electroplating additive and detergent auxiliary.
Safety & Storage Instructions
- Hazard Classification: Low toxicity, mild irritant
- Personal Protection: Wear conventional gloves. Avoid excessive dust inhalation and eye contact.
- Storage Condition: Keep tightly sealed. Store in cool, dry and ventilated place, prevent moisture absorption.
- Transportation: General inorganic chemical goods. Prevent package damage and dampness during transit.
Quality & Spectral Data
- Purity: ≥99.0%
- Loss on Drying: ≤0.2%
- Water Insoluble Matter: ≤0.01%
- Heavy Metals: ≤10 ppm
Information Summary Table
| Item | Specification |
| CAS Number | 7778-77-0 |
| Product Name | Potassium dihydrogen orthophosphate(V) |
| Synonym | Potassium dihydrogen phosphate, Monopotassium phosphate |
| Molecular Formula | KH2PO4 |
| Molecular Weight | 136.09 g/mol |
| Appearance | Colorless crystal or white crystalline powder, odorless |
| Density | 2.338 g/cm3 |
| Solubility | Easily soluble in water; insoluble in ethanol |
| Purity | ≥99.0% |
| Storage Condition | Sealed, cool dry place, moisture-proof |
| Hazard Property | Low toxicity, mild irritant |
| Main Usage | Fertilizer, food additive, buffer reagent, industrial auxiliary |
