Typical specifications
- CAS 6303-21-5
- H3PO2 50% solution typical
- Clear colorless to light yellow liquid
- Phosphite, phosphate, chloride, and heavy-metal limits to confirm
Human reviewBack to sourcing hubIndustrial Basics
Hypophosphorous Acid 50%
Hypophosphorous acid sourcing page for qualified buyers checking concentration, stabilizer status, metal limits, reducing-agent use context, and route/document review before RFQ.
Quick buying facts
Identify the grade, package, and import market before comparing suppliers.
Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.
CAS 6303-21-5Phosphorus acid solutionHuman review
Target buyers
- Electroless plating chemical buyers
- Specialty chemical distributors
- Qualified reducing-agent procurement teams
Documents to check
- CAS number, grade, assay, and impurity profile
- SDS, COA, TDS, HS code, and transport classification
- Destination-market import documents before supplier matching
Packing notes
- Drum or IBC route subject to supplier and destination acceptance
- Acid-compatible package, cap, and label review required
- Temperature exposure and transit time should be checked before booking
Applications and sourcing options
Check whether this product fits the buyer's actual application.
Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.
Common applications
- Electroless plating supply chains
- Specialty phosphorus chemical procurement
- Qualified reducing-agent distribution
Sourcing options
- End-use and target-market pre-screening
- Drum or IBC package review
- COA, SDS, and transport document check
Compliance notes
- Transport classification, package compatibility, and destination controls must be reviewed before supplier contact
- Request SDS, COA, TDS if available, HS code, packing certificate, and package photos
- Reducing-agent and regulated-use inquiries require buyer-side compliance confirmation
Buyer search paths
Related sourcing terms
These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.
hypophosphorous acid 50% supplierH3PO2 CAS 6303-21-5hypophosphorous acid China exportphosphorus acid solution sourcing
Related product options
Build a broader quote package from adjacent options.
Buyers often compare neighboring grades, forms, or route options before sending one consolidated RFQ.
Mineral acid
Sulfuric Acid 98%
China sourcing page for sulfuric acid buyers checking concentration, color, heavy metals, package compatibility, corrosive route, and export document readiness before RFQ.
Mineral acid
Phosphoric Acid 85%
Phosphoric acid sourcing page for buyers comparing food, tech, or industrial grade, assay basis, color, arsenic or heavy-metal limits, packing, and target-market documents.
Oxidizing mineral acid
Nitric Acid 68%
Nitric acid sourcing page for qualified buyers checking concentration, nitrate impurity profile, oxidizer and corrosive classification, package route, and strict document readiness.
High-hazard mineral acid
Hydrofluoric Acid 40-55%
Hydrofluoric acid sourcing coordination page for qualified buyers checking concentration, package compatibility, route feasibility, SDS scope, and mandatory human review before RFQ.
RFQ questions before supplier matching
Turn this product into a quote request.
Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.
- Which concentration, stabilizer status, and impurity limits should suppliers quote?
- What application, package format, destination market, and route are planned?
- Are any local controls or end-use documents required before supplier matching?
- Transport classification, package compatibility, and destination controls must be reviewed before supplier contact
- Request SDS, COA, TDS if available, HS code, packing certificate, and package photos
- Reducing-agent and regulated-use inquiries require buyer-side compliance confirmation
Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.