Sodium Naphthalene Formaldehyde（SNF） for Industrial and Specialty Formulations
Sodium Naphthalene Formaldehyde（SNF） Sodium Naphthalene Formaldehyde (SNF) is a naphthalene sulfonate formaldehyde condensate used as a high-range water reducer and industrial dispersant for cement, gypsum, ceramic, dye, pigment, and suspension systems.
This page keeps the original product specification values and adds buyer-focused structure for sourcing, formulation testing, documentation, packaging, and export communication.
Use the values below as the original page specification reference, then confirm current TDS, COA, SDS, batch data, and application test results before purchase.
Main Specification
The following values are taken from the original product page and kept as the specification baseline for this optimized page.
| Model item | Original SNF-10% value | Buyer note |
|---|---|---|
| Net starch fluidity, mm | ≥220 | Original page specification |
| Content of Cl-, % | <0.4 | Original page specification |
| pH value | 7-9 | Original page specification |
| Surface tension, N/m | (71 ± 1) × 10-3 | Original page specification |
| Solids content, % | ≥91 | Original page specification |
| Na2SO4 content, % | <5 | Original page specification |
Original Test Data Sheet
| Item | Criteria | Actual result |
|---|---|---|
| Water reduction, % | ≥14 | 17 |
| Water penetration, % | ≤90 | 80 |
| Air content, % | ≤3.0 | 2.0 |
| Compression strength, 1h | ≥140 | 165 |
| Compression strength, 3h | ≥130 | 155 |
| Compression strength, 7h | ≥125 | 135 |
| Compression strength, 28h | ≥120 | 130 |
| Shrinkage, 28d | ≤135 | 87 |
Industrial Applications
Application should be selected by process route, water quality, pH, temperature, salts, raw materials, equipment, local regulation, and customer approval testing.
Concrete high-range water reducer screening
Concrete high-range water reducer screening. Confirm grade, dosage, compatibility, and local compliance before commercial use.
Cement
Cement and gypsum dispersion. Confirm grade, dosage, compatibility, and local compliance before commercial use.
Ceramic slurry water reduction
Ceramic slurry water reduction. Confirm grade, dosage, compatibility, and local compliance before commercial use.
Dyestuff
Dyestuff and pigment dispersion. Confirm grade, dosage, compatibility, and local compliance before commercial use.
Pesticide dispersant systems
Pesticide dispersant systems. Confirm grade, dosage, compatibility, and local compliance before commercial use.
Industrial grinding
Industrial grinding and suspension aids. Confirm grade, dosage, compatibility, and local compliance before commercial use.
Grade Selection Guide
Use the original specification as a starting point, then qualify the exact commercial grade by sample testing and latest documents.
- Original specification match
- Application-route testing
- pH, solubility, and salt tolerance
- TDS, COA, SDS, and batch documents
- Packaging and moisture protection
- Destination-market compliance
Packaging, Documents, and Related Products
Common export support can include 25 kg bags, jumbo bags, palletized shipment, moisture protection, sample lots, TDS, COA, SDS, and customized packing information. Share target application, required specification, destination market, package preference, and annual demand.
FAQ
Are the specification values original?
Yes. The Main Specification section keeps the original page values and presents them in a cleaner buyer-ready format.
Should buyers rely only on the page specification?
No. Buyers should confirm the latest TDS, COA, SDS, sample result, destination-market compliance, and contract specification before order.
Can China Lignin support samples and export documents?
Samples, TDS, COA, SDS, packing information, and export quotation can be prepared after the buyer confirms target application, required specification, destination market, and volume.