Potassium Hypophosphite Potassium phosphinate CAS 7782-87-8

Tree Chem supplies Potassium Hypophosphite CAS 7782-87-8 for customers looking to purchase a reliable phosphorus-based reducing salt with controlled purity and impurity limits. The product appears as white crystalline material and shows good solubility in water, making it suitable for downstream processing and formulation.

Potassium Hypophosphite is manufactured under controlled conditions to ensure low heavy-metal content and consistent chemical composition, supporting its use in electronics, electroplating, fine chemicals, and other precision-driven industries. For product selection or application guidance, please contact info@cntreechem.com.

Specification

Basic Information

Technical Specification

Applications

Electroless Plating and Metal Surface Finishing

• Potassium hypophosphite is primarily used as a phosphorus-based reducing agent in electroless plating systems, particularly in electroless nickel and nickel–phosphorus alloy deposition. In these systems, hypophosphite ions provide electrons required for the reduction of metal ions on catalytic surfaces, enabling uniform metal deposition without the use of external electric current. This makes potassium hypophosphite especially suitable for coating complex-shaped parts, internal cavities, and precision components where conventional electroplating faces limitations.
• In industrial surface-finishing operations, potassium hypophosphite is valued not only for its reducing capability but also for its role in controlling phosphorus incorporation into deposited coatings. The resulting Ni–P layers exhibit enhanced hardness, corrosion resistance, and wear performance, particularly after appropriate heat treatment. As a potassium salt, it offers good solubility and compatibility in alkaline or mildly acidic bath systems, supporting stable bath operation and consistent coating quality over extended production cycles.

Chemical Reduction and Fine Chemical Manufacturing

• Potassium hypophosphite is widely positioned as a controlled reducing agent in fine-chemical and specialty-chemical synthesis. Its reducing strength is moderate compared with aggressive hydride reagents, which allows selective reduction of target functional groups while minimizing side reactions. This makes it suitable for reaction systems where precise redox control is required to protect sensitive molecular structures or maintain high selectivity.
• In industrial manufacturing, potassium hypophosphite is often incorporated into reduction stages as part of a broader reaction-control strategy. It can be combined with suitable solvents, buffers, or catalysts to stabilize reaction kinetics, improve yield consistency, and reduce the formation of by-products. These characteristics make it useful in the preparation of intermediates for pharmaceuticals, agrochemicals, and other high-value organic compounds.

Water Treatment and Corrosion Control

• In water-treatment applications, potassium hypophosphite functions as an auxiliary oxygen scavenger and corrosion-inhibition component. When introduced into boiler feedwater or circulating-water systems, hypophosphite ions react with dissolved oxygen, reducing oxidative attack on steel and other metallic surfaces. This behavior helps limit pitting, general corrosion, and metal degradation in systems operating at elevated temperature and pressure.
• Potassium hypophosphite is commonly blended into multifunctional water-treatment formulations together with phosphonates, polymeric dispersants, and pH-adjusting agents. Within such packages, it contributes to oxygen control while maintaining compatibility with scale-inhibition and dispersing components. Its potassium-based composition also avoids introducing sodium in systems where sodium loading must be controlled, making it suitable for certain specialized water-treatment programs.

Agriculture and Nutrient-Related Uses

• Potassium hypophosphite is also applied in agriculture as a phosphorus-containing nutrient and functional additive. Hypophosphite-derived formulations are absorbed efficiently by plants and can be delivered through foliar spraying or fertigation systems. In these applications, potassium hypophosphite supplies both potassium and phosphorus in a readily available form, supporting energy metabolism, root development, and stress resistance.
• In addition to its nutritional role, hypophosphite-based products are associated with plant health management strategies. They are used in formulations designed to enhance plant resilience and support disease-management programs when combined with other active ingredients or trace elements. The stability and solubility of potassium hypophosphite make it suitable for liquid fertilizer concentrates and water-soluble nutrient systems.

Food Processing and Functional Additive Direction

• In food-related applications, potassium hypophosphite is positioned as a functional additive used at controlled low dosages. It may contribute to processing stability, acidity adjustment, or controlled reaction behavior in specific food-manufacturing contexts. In practice, it is incorporated into compound additive systems rather than used as a single-function ingredient.
• Within these systems, potassium hypophosphite is selected for its compatibility with other food-grade salts, buffering agents, and stabilizers. Its role is to support consistent processing outcomes, product stability, and shelf-life performance without adversely affecting taste, clarity, or appearance when applied within regulated limits.

Storage & Handling

• Store in tightly sealed containers in a cool, dry, and well-ventilated area
• Protect from moisture, direct sunlight, and excessive heat
• Avoid contact with strong oxidizing agents and acids
• Keep handling equipment clean and dry
• Use appropriate grounding measures to prevent static discharge during handling

Usage Notice

• Electroless nickel plating bath containing potassium hypophosphite at 5-10 g/L combined with nickel sulfate (20-30 g/L), lactic acid (10-15 g/L), citric acid (5-8 g/L) and ammonium acetate (15-20 g/L) functions to form a uniform Ni-P alloy coating with good corrosion resistance and wear resistance.
• Plant foliar fertilizer formulation using potassium hypophosphite at 0.2-0.5% with trace elements (Fe, Zn, Mn: 0.01-0.05% each) and organic carriers (1-2%) functions to enhance plant stress resistance and promote growth and development.
• Bread leavening system containing potassium hypophosphite at 2-4% of flour weight combined with sodium bicarbonate (1-2%) and glucono-delta-lactone (0.5-1%) functions to generate controlled CO₂ release and improve dough expansion and texture stability during baking.
• Industrial circulating cooling water corrosion inhibitor formulation incorporating potassium hypophosphite at 5-10 mg/L with zinc chloride (2-3 mg/L), hydroxyethylidene diphosphonic acid (HEDP, 3-5 mg/L) and polyacrylamide (1-2 mg/L) functions to form a protective film on metal surfaces and inhibit pipeline corrosion.
• PP flame-retardant formulation using potassium hypophosphite at 10-15% combined with melamine cyanurate (MCA, 5-8%) and talc (10-12%) functions to achieve UL94 V-2 flame-retardant rating while maintaining good processability of PP.
• Oral mineral supplement dosage incorporating potassium hypophosphite at 0.6-1.8 g per administration with vitamin D₃ (500-1000 IU) and lactose (20-30 g) functions to replenish calcium and phosphorus intake for individuals with mineral deficiencies.
• Injectable mineral preparation using potassium hypophosphite at 5-10 mg/mL with sodium chloride (9 mg/mL) and phosphate buffer (pH 7.2-7.4) functions to provide efficient mineral supplementation with improved oxidative stability.
• Dairy antioxidant system using potassium hypophosphite at around 0.02-0.05% with tocopherols (0.01-0.03%) and citric acid (0.05-0.1%) functions to protect lipids from oxidation and maintain flavor stability of dairy products.
• PVC stabilizer package incorporating potassium hypophosphite at 1-2 parts (per 100 parts PVC) with calcium stearate (2-3 parts) and paraffin wax (1-2 parts) functions to improve heat stability and suppress degradation during PVC processing.
• Fortified beverage premix containing potassium hypophosphite at about 0.01-0.03% with sugars (5-10%), citric acid (0.5-1%) and sodium citrate (0.2-0.5%) functions to provide calcium and phosphorus enrichment while maintaining taste balance.
• Nylon flame-retardant formulation using 5-15% potassium hypophosphite combined with magnesium hydroxide (10-15%) functions to achieve higher flame ratings while retaining mechanical properties of nylon.
• Metal surface formulation applying potassium hypophosphite at 3-5% with fatty acid methyl ester ethoxylate (FMEE, 5-8%) and sodium hydroxide (1-2%) functions to efficiently remove oil and wax from metal surfaces and prevent recontamination.

Packaging

• Fully laminated white paper bags with inner aluminum foil liner
• Net weight: 25 kg per bag
• Other packaging options available upon customer request