High-Quality Monopotassium Phosphite Manufacturer and Supplier from China
Monopotassium Phosphite – Premium Plant Nutrition and Protection
Monopotassium Phosphite (MKP) is a highly efficient phosphorus-potassium compound used in modern agriculture for both plant nutrition and disease resistance. It offers superior solubility, quick absorption, and dual functionality as a fertilizer and biostimulant, making it an essential component in sustainable crop management systems.
Product Overview:
Chemical Name: Monopotassium Phosphite
Molecular Formula: KH₂PO₃
Molecular Weight: 120.08 g/mol
CAS Number: 13977-65-6
Appearance: White crystalline powder
Solubility: Fully water-soluble
Grade: Agricultural grade
Key Features:
Contains highly available phosphite (PO₃³⁻), easily absorbed by plants
Acts as a systemic fungicide alternative to improve resistance to oomycete pathogens (e.g., Phytophthora, Pythium)
Provides potassium, supporting overall plant vigor and stress tolerance
Compatible with most fertilizers and agrochemicals
Free-flowing powder, easily dissolves in irrigation systems or foliar sprays
Typical Specifications:
| Parameter | Specification |
| Assay (KH₂PO₃) | ≥ 98.0% |
| Phosphorus (P₂O₅) Content | ≥ 59.0% |
| Potassium (K₂O) Content | ≥ 31.0% |
| Moisture | ≤ 0.5% |
| pH (1% solution) | 3.5 – 4.5 |
| Heavy Metals | < 10 ppm |
Mode of Action:
Monopotassium Phosphite delivers phosphorus in the phosphite form, which not only feeds the plant but also activates its defense mechanisms, triggering systemic acquired resistance (SAR). It is rapidly translocated in both xylem and phloem, ensuring uniform protection and nutrition.
Applications:
Foliar sprays for fruits, vegetables, and field crops
Fertigation in greenhouses and open fields
Soil drench to prevent root rot and downy mildew
Post-harvest applications to strengthen plant recovery
Advantages Over Traditional Phosphate:
Faster absorption and mobility within plants
Less prone to fixation in soils
Enhances natural plant defenses
Lower application rates required
Why Choose Jiangsu Khonor Chemicals Co., Limited?
Over 10 years of experience in chemicals industry
Strict quality control and batch traceability
Custom packaging and OEM labeling available
Fast shipping to South America, Europe, and Southeast Asia
Free samples and COA/TDS available upon request
Ordering Information:
Packaging: 25 kg paper bags or customized as required
MOQ: 1 MT
Lead Time: Within 7–10 days
Shipping: CIF, FOB, or DDP terms available globally
Sample Policy: Free sample available with express delivery
COA - Monopotassium phosphite.pdf
TDS - Monpotassium phosphite.pdf