Sodium Naphthalene Sulfonate Formaldehyde Superplasticizer for Concrete Admixtures
Buyer-facing sourcing profile for naphthalene sulfonate formaldehyde based high-range water reducing agent used in concrete admixture systems. Key checks should focus on product identity, grade selection, solid content, chloride and sodium sulfate limits, powder appearance, packing format, export documents, and consistency of the declared chemistry versus the supplier page text.
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.
Chemical composition: naphthalene sulfonate formaldehyde / sodium naphthalene sulfonate formaldehyde, as declared by supplierConcrete admixture raw material / high-range water reducing agentCandidate - needs identity and specification verification
Chemical composition: naphthalene sulfonate formaldehyde / sodium naphthalene sulfonate formaldehyde, as declared by supplier
Appearance: light brown or claybank powder
Type options shown: SNF-A, SNF-B, SNF-C
Water reduction rate: typically >16% to >18%; page also claims 15-30% and up to 18-20%
Solid content: >=91% or >=92% for powder grades; separate extracted note mentions possible 50% or 60% solid content, which should be clarified as liquid grade if applicable
pH: 7-9 or 8-10 depending on grade, measured as 10 g/L solution
Chloride ion content: <=0.3%, <=0.5%, or <=4% depending on grade; confirm required limit for project specification
Sodium sulfate content: <=5%, <=18%, or <=25% depending on grade
Insoluble substance: <=0.5%
Fineness: <=0.5%
Air content: <3, unit and test method to be confirmed
Density: 1.162 g/cm3 listed on page; confirm whether this applies to liquid or solution form
Who uses this page
Target buyers
Concrete admixture formulators
Ready-mix concrete admixture distributors
Precast concrete product manufacturers
Construction chemical importers
Dry mortar and floor leveling mortar producers
Infrastructure project material procurement teams
Before matching
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
Package and route
Packing notes
Supplier lists ton bag, 25 kg bag, or 40 kg bag options
Listed loading reference: 16 tons per 20 ft GP container
Confirm whether bags are woven, lined, moisture-resistant, palletized, or container-loaded loose
Request package photos, net weight per bag, pallet dimensions, and container loading plan before order confirmation
For any 50% or 60% liquid solid-content option, request drum/IBC/tank packaging details separately
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.
Use context
Common applications
High-range water reducing admixture formulation
Precast concrete production
Ready-mixed concrete admixture blending
Reinforced and prestressed concrete project supply
Pumpable concrete admixture systems
Floor leveling mortar and dry-mix construction material formulations
How we compare
Sourcing options
Powder grade with >=91% or >=92% solid content
SNF-A with lower sodium sulfate limit, subject to confirmation
SNF-B or SNF-C where higher sulfate or chloride limits are acceptable for the application
25 kg bag, 40 kg bag, or ton bag packing
Potential 50% or 60% solid-content liquid option, requiring separate specification confirmation
Manufacturer export supply with sample and custom specification discussion
Human review
Compliance notes
Request COA matching the exact grade, batch number, production date, and shipment lot
Request TDS, SDS, HS code confirmation, commercial invoice, packing list, certificate of origin if needed, and any project-specific test report
Confirm CAS or substance identity for the declared naphthalene sulfonate formaldehyde product, since the source page mixes naphthalene superplasticizer and polycarboxylate wording
Verify chloride ion and sodium sulfate limits against destination market concrete admixture standards and customer project specifications
Confirm whether the product is supplied as powder or liquid and whether the stated solid content applies to the quoted material
Check destination import requirements for formaldehyde-related polymer products, chemical registration obligations, labeling, and SDS language requirements
Confirm dangerous goods classification, UN status if any, and export transport classification with the supplier's SDS before booking shipment
No regulatory approval or import clearance should be assumed from marketplace listing claims
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.
sodium naphthalene sulfonate formaldehyde supplierSNF superplasticizernaphthalene superplasticizer powderconcrete water reducing agenthigh range water reducerconcrete admixture suppliersulfonated naphthalene formaldehyde condensateSNF-A SNF-B SNF-C concrete admixtureconstruction chemical raw materialHS code 38244010
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.
Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.
Questions to confirm
What is the exact product identity, CAS reference if available, and grade: SNF-A, SNF-B, SNF-C, or liquid 50%/60% solid content?
Can you provide recent COA, TDS, SDS, and third-party test results for the same grade and batch range?
What are the guaranteed limits for solid content, water reduction rate, chloride ion, sodium sulfate, pH, insolubles, fineness, and moisture?
Which test standards are used for water reduction rate, cement fluidity, chloride, sodium sulfate, and pH?
Is the quoted product sodium naphthalene sulfonate formaldehyde or polycarboxylate superplasticizer? Please confirm because both descriptions appear in the listing.
What is the minimum order quantity, sample quantity, lead time, and shelf life under standard storage conditions?
What packaging options are available for export, and can the supplier provide package photos and container loading records?
Can the supplier support buyer-specified chloride and sodium sulfate limits for precast, ready-mix, or prestressed concrete applications?
Checks before quote
Request COA matching the exact grade, batch number, production date, and shipment lot
Request TDS, SDS, HS code confirmation, commercial invoice, packing list, certificate of origin if needed, and any project-specific test report
Confirm CAS or substance identity for the declared naphthalene sulfonate formaldehyde product, since the source page mixes naphthalene superplasticizer and polycarboxylate wording
Verify chloride ion and sodium sulfate limits against destination market concrete admixture standards and customer project specifications
Confirm whether the product is supplied as powder or liquid and whether the stated solid content applies to the quoted material
Check destination import requirements for formaldehyde-related polymer products, chemical registration obligations, labeling, and SDS language requirements
Confirm dangerous goods classification, UN status if any, and export transport classification with the supplier's SDS before booking shipment
No regulatory approval or import clearance should be assumed from marketplace listing claims
Next step
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.
