Hypophosphorous Acid Supplier in Malaysia
- Also known as
- Phosphinic Acid
- H3PO2
Hypophosphorous acid supplier for industrial, metal-finishing and process buyers in Malaysia. Also called phosphinic acid and identified as H3PO2 (CAS 6303-21-5), this free phosphorus oxyacid is selected as a strong reducing agent in aqueous solution form.
Commercial material is typically supplied as a clear aqueous solution. Technical grades serve general industrial and process reducing-agent duties, while higher-purity solutions are chosen when assay or impurity limits are tighter. Concentration and grade are confirmed against the enquiry rather than assumed as a fixed stock strength.
Buyers use hypophosphorous acid in metal finishing and selected electroless nickel bath chemistry that names the free acid, in chemical synthesis and in polymer or resin process routes that need a hypophosphorous reducing agent. Sodium hypophosphite, phosphorous acid, phosphoric acid and hypochlorous acid remain separate products.
Send the required concentration or grade, specification, quantity and delivery location with your enquiry. Availability, packing, documentation and delivery timing are confirmed with the quotation.

- CAS number
- 6303-21-5
- Formula
- H3PO2
- Grade
- industrial, technical, high-purity
- Appearance
- clear colourless to pale aqueous liquid
Hypophosphorous Acid grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Technical aqueous hypophosphorous acid | clear aqueous solution | — | Industrial reducing-agent supply, metal-finishing bath chemistry and general process use where a technical hypophosphorous acid solution is specified. | Confirm the required pack format with the quotation. |
| High-purity hypophosphorous acid solution | clear aqueous solution matched to a tighter specification | — | Synthesis, fine-chemical work and buyers who need higher purity or tighter impurity control than a standard technical solution. | Confirm the required pack format with the quotation. |
How to buy hypophosphorous acid from ChemTrade
Request a quote for hypophosphorous acid
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | clear colourless to pale aqueous liquid | — |
| Chemical formula | H3PO2 | — |
| CAS number | 6303-21-5 | — |
| Commercial form | aqueous solution; concentration, assay and impurity limits confirmed against the required grade | — |
| Solubility | miscible with water | — |
Hypophosphorous Acid applications
Safety and handling
- Classification
- corrosive
Store sealed in a cool, dry, well-ventilated place away from incompatible oxidising materials. Handle as a corrosive reducing acid; use suitable gloves and eye protection and follow the safety information for the quoted grade. Supply is subject to applicable requirements.
Common questions about hypophosphorous acid
Are hypophosphorous acid and phosphinic acid the same product?
Yes. Phosphinic acid is the systematic name for hypophosphorous acid (CAS 6303-21-5, formula H3PO2). State the required concentration, purity and application in the enquiry so the quotation can match the intended use.
Is hypophosphorous acid the same as sodium hypophosphite?
No. Hypophosphorous acid is the free acid H3PO2. Sodium hypophosphite is the sodium salt used widely as a reducing agent in electroless nickel plating. Order the free acid only when the specification names hypophosphorous acid or phosphinic acid, not the salt.
Is this the same as phosphorous acid, phosphoric acid or hypochlorous acid?
No. Phosphorous acid (H3PO3), phosphoric acid (H3PO4) and hypochlorous acid are different chemicals. This page covers hypophosphorous acid (phosphinic acid, H3PO2) only. Quote the CAS or formula if the requirement sheet is unclear.
Which grade or concentration should I request?
Commercial supply is usually an aqueous solution. Technical grades serve general industrial reducing-agent and process duties; high-purity solutions are selected when assay or impurity limits are tighter. Send the target concentration and any impurity limits with the enquiry.
How is hypophosphorous acid used as a reducing agent?
It is a strong reducing acid used in metal finishing, selected electroless nickel bath chemistry, chemical synthesis and related process work that specifies free hypophosphorous acid. Process dose and bath design remain the buyer's responsibility.
What details are needed for a hypophosphorous acid price enquiry?
Provide concentration or grade, purity or impurity limits, application, quantity, delivery location and preferred pack format if known. Mention any documentation needs so the quotation can address the full requirement.
