Purity 98 Phosphate Dihydrogen Potassium KH2PO4 Powder Chemical Raw Material
High Purity 98% Potassium Dihydrogen Phosphate Chemical Raw Material
Product Specifications
| Attribute | Value |
| CAS | 7778-77-0 |
| EINECS | 7778-77-0 |
| Appearance | White crystal particle |
| Crystalline hydrate | Anhydrous crystals |
| Fusing point | 252.6 ℃ |
| Solubility | Dissolve in water |
Key Attributes
- Products: Potassium dihydrogen phosphate/MKP
- Molecular formula: KH2PO4
- Molecular weight: 136.09
- Industrial grade 98% CAS 7778-77-0
- Fertilizer (Agricultural/Medicine) grade 98% CAS 7778-77-0
Quality Standards (HG/T 4511-2013)
| Analysis | Test Method | Standard request |
| MKP (KH2PO4) content % | HG/T 4511-2013 | ≥98% |
| Water insoluble % | HG/T 4511-2013 | ≤0.3% |
| PH value (10g/mL) | HG/T 4511-2013 | 4.4～4.6 |
| Chloride (as Cl) ppm | HG/T 4511-2013 | ＜0.79% |
| Arsenic (as As) ppm | HG/T 4511-2013 | ＜0.005% |
| Moisture | HG/T 4511-2013 | ＜0.48% |
| Lead (as Pb) ppm | HG/T 4511-2013 | ＜4 |
| Loss on drying % | HG/T 4511-2013 | ＜1 |
| P2O5 (water-soluble) % | HG/T 4511-2013 | ≥52.1 |
| K2O (water-soluble) % | HG/T 4511-2013 | ≥34.5 |
References: Riel Chemical Lab1&2, National public service platform for standards information.
Physicochemical Properties
| Molecular weight | 163.94 g/mol |
| Appearance | white crystalline or powdery solid |
| Odor | Odorless or slightly sulphide odor |
| Density | 1.62 g/cm³ (dodecahydrate, 20°C) |
| Melting point | approx. 73.4°C (dodecahydrate decomposition) |
| Chemical Safety | Unrestricted goods |
| Solubility | Water: easily soluble in water, aqueous solution is strongly alkaline (pH about 12); Organic solvent: insoluble in ethanol, and other organic solvents. |
Hydrolysis reaction: Fully ionized in water to form phosphate ions and sodium ions
Complexation: Form an insoluble precipitate with metal ions (e.g. Ca² +, Mg² +) for softening hard water.
Thermal stability: It decomposes when heated to high temperatures, forming sodium phosphate and oxygen.
Acid base: The aqueous solution is strongly basic and can react with acid to form phosphate.
Applications
1. Agriculture
Efficient fertilizer: Potassium dihydrogen phosphate is a high concentration phosphorus potassium compound fertilizer, which can provide phosphorus (P) and potassium (K) two key nutrients for plants.
Suitable for foliar spraying, drip irrigation or soil application to promote crop growth, flowering and fruit. Often used in fruit trees, vegetables, flowers and other high value-added crops.
Advantages: good water solubility, high absorption efficiency, no residue to the soil.
2. Medicine and Cosmetics
Buffer: In pharmaceuticals and cosmetics, potassium dihydrogen phosphate is used as a buffer to regulate pH.
Nutritional supplements: For the preparation of drugs containing phosphorus and potassium, such as electrolyte supplements.
Stabilizers: In cosmetics, help stabilize the formula and prevent ingredients from breaking down.
3. Industrial Use
Water treatment: Corrosion inhibitor for boiler water and cooling water treatment to prevent corrosion of metal equipment.
Water softener: combined with calcium and magnesium ions to prevent scale formation.
Flame retardants: Used for flame retardant treatment of wood, textiles and plastics.
Electroplating additives: Used in the electroplating industry to regulate the pH value and conductivity of electroplating solutions.
4. Research and Laboratories
Buffer solution: Common reagent for preparing buffer solutions, widely used in biochemistry and molecular biology experiments.
Analytical reagent: Used in chemical analysis as a standard substance or reagent.
Medium component: In microbial culture, as a source of phosphorus and potassium.
Frequently Asked Questions
1. What is your payment term?
We can accept T/T and L/C at sight as payment term.
2. Are you able to deliver on time?
Of course! We specialized in this line for many years, many customers make deals with us because we can deliver the goods on time and maintain top quality!
3. Do you provide free sample?
Yes, we can provide free sample. You only need to take the express fee.
4. How about the price? Can you make it cheaper?
We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we assure you to get the most competitive price.
5. Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Weifang, China. (We will have someone responsible for picking up and dropping off at Weifang Airport)
6. What if there is a quality problem?
We have a professional and perfect after-sales service team, timely for you to deal with all problems.
Your message must be between 20-3,000 characters!
