98% High Concentration Potassium Dihydrogen Phosphate for Buffer Agent
Price:
USD 657/TONS FOB
MOQ:
1 ton
Delivery Time:
5 work day
Brand:
Riel Chemical
Product Description
98% High Concentration Potassium Dihydrogen Phosphate for Buffer Agent
Product Specifications
| CAS | 7778-77-0 |
| EINECS | 7778-77-0 |
| Appearance | White crystal particle |
| Crystalline hydrate | Anhydrous crystals |
| Life span | Two years |
| Density | 2.338 g/cm³ |
| Solubility | Dissolve in water |
Product Description
98% High Concentration Potassium Dihydrogen Phosphate (MKP) is a versatile chemical compound with applications across multiple industries.
Key Attributes
- Chemical Name: Potassium dihydrogen phosphate (MKP)
- Molecular formula: KH2PO4
- Molecular weight: 136.09
- Available in Industrial grade 98% and Fertilizer (Agricultural/Medicine) grade 98%
- Meets HG/T 4511-2013 standard requirements
Quality Standards
| 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 water soluble fertilizer providing essential phosphorus (P) and potassium (K)
- Promotes root development, flowering and fruiting, and enhances stress resistance (drought and cold resistance)
- Foliar spraying quickly supplements nutrients, especially during fruit expansion or nutrient deficiency
- Ideal for drip irrigation systems and water-fertilizer integration technology
- Enhances photosynthesis, increases fruit sugar content, and improves color and taste
- Boosts plant resistance to pests and diseases, reducing pesticide use
- Neutral pH makes it suitable for various soils without causing acidification or salinization
2. Industrial Applications
- Buffer and pH regulator: Used in pharmaceutical production (injections, oral liquids) and industry (E340 additive for dairy products, beverages)
- Surface treatment and plating: Provides phosphorus source in metal plating solutions to enhance corrosion resistance; used in cleaning agents to remove metal surface oxides
- Ceramic and glass manufacturing: Acts as flux to reduce firing temperature and improve product transparency or strength
3. Laboratory and Scientific Research
- Buffer solution preparation: Combined with dipotassium hydrogen phosphate (K₂HPO₄) to prepare buffers (pH 4.5-8.0 range) for biological experiments (PCR, enzyme reactions)
- Analytical reagent: Serves as standard for phosphorus or potassium in spectral analysis or titration
- Microbial medium: Provides essential phosphorus and potassium for bacterial or fungal cultures
Frequently Asked Questions
What is your payment term?
We accept T/T and L/C at sight as payment terms.
Are you able to deliver on time?
We specialize in this product line with many years of experience. Our customers choose us because we consistently deliver high-quality products on schedule.
Do you provide free samples?
Yes, we provide free samples. Customers only need to cover the express shipping fee.
How about the price? Can you make it cheaper?
Customer benefit is our top priority. Prices are negotiable based on order quantity and other factors, and we guarantee competitive pricing.
Can I visit your company and factory in China?
You're welcome to visit our facility in Weifang, China. We provide airport pickup and drop-off services at Weifang Airport.
What if there is a quality problem?
We have a professional after-sales service team ready to promptly address any quality concerns.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Riel Chemical Co., Ltd.
Location
1007, Qingzhou Taihua Building, Weifang City, Shandong Province, China
Contact Person
Jenkins Hu / Jinxu Hu