98% Potassium Dihydrogen Phosphate Powder for Water Treatment (CAS No 7778-77-0)
Product Overview
CAS 7778-77-0 98% Potassium Dihydrogen Phosphate for water treatment applications.
Key Specifications
| Attribute |
Value |
| 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 |
Chemical Properties
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 |
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
Riel Chemical Product Advantages
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Technical advantages: Mature production technology with over 20 years of experience in nitric acid production, delivering stable quality products that exceed national standards.
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Product quality advantage: High standard quality control with products exceeding national excellent product standards and EU REACH certification. Commitment to green manufacturing and environmental sustainability.
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Industrial chain advantage: Complete industrial chain from nitric acid to potassium nitrate, magnesium nitrate, and nitro water-soluble fertilizer products, enhancing production efficiency and market competitiveness.
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Market and customer advantages: Extensive supply network with long-term stable relationships and international market presence in over 20 countries and regions.
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Environmental protection and energy saving advantages: Energy-saving technologies and green manufacturing concepts integrated into strategic layout, reducing energy consumption and improving cleaner production levels.
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?
Yes, we specialize in this product line with many years of experience, ensuring timely delivery while maintaining top quality.
Do you provide free samples?
Yes, we provide free samples with the customer responsible for express fees.
How about the price? Can you make it cheaper?
We prioritize customer benefits and offer competitive, negotiable pricing based on order conditions.
Can I visit your company and factory in China?
Yes, you're welcome to visit our company in Weifang, China (we provide airport pickup/drop-off service).
What if there is a quality problem?
We have a professional after-sales service team to promptly address any issues.
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