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    HomeProductsEnergy & AgricultureAgricultural Chemical AdditivesMonopotassium Phosphate CAS 7778-77-0
    • Monopotassium Phosphate CAS 7778-77-0

    Monopotassium Phosphate CAS 7778-77-0

    Monopotassium Phosphate (CAS 7778-77-0) is a water-soluble inorganic salt utilized as a high-efficiency phosphorus and potassium fertilizer in agricultural fertigation systems and a buffering agent in food processing. Chemically identified as Potassium dihydrogen phosphate or MKP, this colorless crystalline solid functions to lower pH levels in alkaline mixtures and provide rapidly absorbed nutrients for root development. As a high-purity Potassium acid phosphate source, it is integrated into hydroponic nutrient solutions and foliar sprays to enhance flowering and fruit quality. We ensure bulk supply capabilities for this material, providing access to competitive factory pricing and customized specifications to meet specific solubility and mesh size requirements. Full technical documentation, including MSDS, TDS, COA, is available to support compliance and safety protocols.

    • CAS: 7778-77-0
    • Synonyms: Potassium dihydrogen phosphate, MKP, Potassium acid phosphate, Monobasic potassium phosphate
    • Einecs: 231-913-4
    • Molecular Formula: KH₂PO₄
    • Grade: Tech Grade / Agriculture Grade (Water Soluble)
    • Package: 25kg PP/PE woven bags, kraft paper bags, or 1000kg Jumbo bags (Customizable)
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    Product Description

    Monopotassium Phosphate is a white, odorless crystalline powder that dissolves rapidly in water. It acts as a high-quality compound fertilizer with an N-P-K ratio typically equivalent to 0-52-34. Due to its low salt index and high purity (≥99%), it is exceptionally safe for foliar applications and drip irrigation systems, posing no risk of leaf burn or root damage when used correctly.

    Beyond agriculture, it is widely used in the chemical industry as a buffering agent, a culture medium agent for fermentation, and a raw material for producing potassium meta-phosphate.

    1 Physicochemical Properties
    2 Applications
    3 Storage Conditions
    4 Safety Precautions

    Physicochemical Properties

    ParameterSpecification (Tech/Agri Grade)
    AppearanceWhite Crystal or Crystalline Powder
    Main Content (as KH₂PO₄)≥ 99.0%
    Phosphorus Pentoxide (P₂O₅)≥ 51.5% – 52.0%
    Potassium Oxide (K₂O)≥ 34.0%
    Moisture≤ 0.2%
    Water Insoluble Matter≤ 0.1%
    pH Value (1% Solution)4.3 – 4.8
    Chloride (Cl)≤ 0.2%
    Iron (Fe)≤ 0.003% (30 ppm)
    Heavy Metals (as Pb)≤ 0.005% (50 ppm)
    Solubility~22.6g/100ml water at 20°C

    Applications

    1. Agriculture (Fertilizer):
      • Foliar Spray: Used to supplement P and K during critical growth stages (blooming and fruit setting) to improve fruit quality and sugar content.
      • Fertigation: Ideal for hydroponics and drip irrigation due to its excellent solubility and acidic pH, which helps keep drippers clean.
      • Fungicide Effect: When mixed correctly, it can help control powdery mildew on certain crops.
    2. Industrial Fermentation: Used as a nutritional agent and buffering regulator in the fermentation of yeast, bacteria, and other microorganisms.
    3. Chemical Industry: Acts as a buffering agent for pH regulation in chemical reactions.
    4. Food Processing: (If Food Grade specified) Used as a sequestering agent, fermentation food additive, and flavoring agent.

    Storage Conditions

    • Environment: Store in a cool, dry, and ventilated warehouse.
    • Moisture Control: The product is stable but should be kept away from water and high humidity to prevent caking.
    • Packaging: Keep bags tightly closed when not in use.
    • Segregation: Store separately from toxic or hazardous materials.

    Safety Precautions

    • General: MKP is considered safe and non-toxic for general handling.
    • Protection: Wear standard industrial protective gear (gloves, safety glasses) to prevent dust irritation.
    • Eye Contact: Rinse thoroughly with water if dust enters the eyes.
    • Skin Contact: Wash with soap and water.
    • Inhalation: Avoid breathing dust; use in a ventilated area.

    FAQ - Technical & Supply Chain

    • Q:

      Is this product compatible with hydroponic nutrient formulations?

      A: Yes, this material is typically applied in hydroponics and greenhouse cultivation as a primary source of phosphorus and potassium, free from chloride and nitrogen, making it ideal for precision nutrient management.
    Documents

    Documents and Product Support

    For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

    • COA for batch-based quality reference
    • TDS for key physical and chemical information
    • SDS / MSDS for handling, storage, and safety reference
    • Packing information for sample, trial, and bulk orders
    • Technical communication based on application and specification requirements
    Quotation

    Information to Confirm Before Quotation

    Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

    • Product name and CAS number
    • Application or intended end use
    • Required purity, grade, or specification
    • Sample quantity, trial order, or bulk demand
    • Preferred packing form or net weight
    • Destination country or port
    • Required documents or compliance expectations
    Storage & Handling

    Packaging, Storage, and Handling Notes

    Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

    Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

    Supply Support

    Sample, Bulk Order and Repeat Supply Support

    Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

    For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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    Product Categories

    Tags:

    Buffering Agent Fertilizer Ingredient Inorganic Phosphate Nutrient Salt

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