Hypophosphorous Acid (HPA)
Hypophosphorous Acid (HPA, CAS 6303-21-5) is a phosphorus-based reducing agent used in electroless plating and chemical manufacturing. Send Inquiry
Product Description
Hypophosphorous Acid, CAS Number: 6303-21-5
Hypophosphorous Acid, also known as Phosphinic Acid, is an inorganic phosphorus compound with strong reducing properties. It is commonly supplied as an aqueous solution and widely used in electroless nickel plating, chemical synthesis, and industrial reduction processes.
Product Chemical Properties
Chemical Name: Hypophosphorous Acid
CAS Number: 6303-21-5
Molecular Formula: H3PO2
Molecular Weight: 66.00 g/mol
EINECS Number: 228-601-5
Melting Point: Approximately -25°C
Boiling Point: Approximately 108°C
Density: Approximately 1.206 g/mL at 20°C (50% aqueous solution)
Solubility: Miscible with water
Product Technical Specification
hypophosphorous acid (h₃po₂) content, % ≥: 50.0
phosphorous acid (h₃po₃) content, % ≤: 0.3
iron (fe) content, % ≤: 0.0005
chloride (calculated as cl) content, % ≤: 0.015
sodium (na) content, % ≤: 0.05
sulfate (calculated as so₄) content, % ≤: 0.015
arsenic (as) content, % ≤: 0.0001
lead (pb) content, % ≤: 0.0005
chroma(hazen): 30
relative density(20°c): 1.210-1.226
Applications of Hypophosphorous Acid
1.As a reducing agent for electroless plating.
2.To prevent the discoloration of phosphate resin.
3. As a catalyst and refrigerant for esterification.
4.To produce Phosphate salts, whose sodium salts, manganese salts, iron salts, etc. are usually used as tonics.
5.For medicine and as a reducing agent, for the determination of arsenic, tellurium and separation of tantalum, niobium, etc.
Packaging
250kg/drum.
Production Capacity
10000MT/year.
Storage Requirements
Store in tightly sealed, corrosion-resistant containers in a cool, dry, and well-ventilated place. Protect from heat and incompatible substances, especially strong oxidizing agents and strong bases. Avoid heating above recommended storage temperatures.
Hypophosphorous Acid Bulk Supply from China
Hosea Chem is a China-based chemical supplier serving international customers with a range of basic chemicals, inorganic phosphorus compounds, and industrial chemical intermediates. Contact us for Hypophosphorous Acid CAS 6303-21-5 inquiries, including concentration, specifications, pricing, packaging, and bulk supply options.