NPK

High-Quality Monopotassium Phosphite Manufacturer and Supplier from China

  • Type NPK
  • E No.
  • CAS No. 13977-65-6
  • Qty in 20' FCL 26
  • Packaging 25kg bags or jumbo bags


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:

ParameterSpecification
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


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