Sodium Naphthalene Sulfonate

  • SNF-A Sample
    SNF-A Sample
  • Product Name: Sodium Naphthalene Sulfonate Formaldehyde
  • Abbreviation: SNF/PNS/NSF/FND
  • Product Type: SNF-A/B/C
  • Appearance: Light brown powder
  • PH Value: 7-9
  • CAS No.: 36290-04-7
  • HS Code: 38244010.00

Sodium naphthalene sulfonate formaldehyde (SNF/PNS/FND/NSF), also called poly naphthalene sulfonate or sulphonated naphthalene formaldehyde, is commonly referred to as a superplasticizer for concrete. It is the light brown powder in appearance. SNF has a strong dispersion effect on cement particles, and the water reduction rate can reach 15-25%. Sodium Naphthalene is especially suitable for the preparation of high-strength concrete, steam-cured concrete, fluid concrete, impermeable concrete, waterproof concrete, plasticized concrete, steel bars and prestressed reinforced concrete.

Naphthalene sulfonate formaldehyde condensate is made of naphthalene, sulfuric acid, formaldehyde and liquid base, and undergoes a series of reactions such as sulfonation, hydrolysis, condensation and neutralization, and then dried into SNF powder. Of course, different models of naphthalene sulfonate powder also have different technical specifications.

Solid Content (%) ≥ 92 92 92
PH Value 7-9 7-9 7-9
Na2SO4 Content (%)≤ 5 10 18
Chlorine Content (%)≤ 0.3 0.4 0.5
Net Starch Fluidity(mm)≥ 250 240 230
Max Water Reducing Rate(%) 26 25 23
Packing of SNF Superplasticizer 25kg pp bag; 650kg Jumbo bag. Customized package available.

Main Applications of Sodium Naphthalene Sulfonate

(1) SNF superplasticizer is widely used in various concrete projects such as railways, highways, bridges, hydropower, ports, docks, industrial and civil buildings, prefabricated components, and concrete with sodium sulfate content requirements.

(2) Besides, sodium naphthalene sulfonate (SNF) can also be used as a dispersant in the leather, textile and dye industries, etc.

Advantages of Poly Naphthalene Sulfonate (PNS)

  • High water reduction rate. When the water-cement ratio is constant, the initial slump of concrete can be increased by more than 10cm, and the water reduction rate of poly naphthalene sulfonate can reach up to 15-25%. More importantly, when the strength and slump are basically the same, The poly naphthalene sulfonate can also reduce the amount of cement used by 10-25%.
  • Good enhancement. The poly naphthalene sulfonate superplasticizer has obvious early strength and enhancement effect on concrete, and the strength increase range is 20-60%.
  • Adaptability. Naphthalene sulfonate is suitable for various specifications and models of cement. And it has good compatibility with other concrete admixtures, for example, it can be combined with an admixture such as a swelling agent, an air entraining agent, and an active admixture such as fly ash.
  • Good durability. It can effectively improve the pore structure of the concrete, thereby greatly improving the durability indexes of concrete such as impermeability, carbonation resistance and freeze-thaw resistance.
  • Improve the workability of concrete. Comprehensively improve the physical and mechanical properties of concrete.
  • Suitable for many concrete projects. Such as fluid concrete, plasticized concrete, steam-cured concrete, impermeable concrete, waterproof concrete, natural curing precast concrete, steel and prestressed reinforced concrete, high-strength and ultra-high-strength concrete.
  • Safety performance. Sodium naphthalene sulfonate is a non-hazardous chemical with many characteristics such as non-toxic, non-irritating and non-radioactive. No corrosion effect on steel reinforcement.

example of construction chemichal

Kingsun – Leading SNF Superplasticizer Manufacturer

As a leading manufacturer & exporter of SNF Superplasticizer in China, Kingsun has been focusing on the research and production of sulphonated naphthalene formaldehyde for many years. And we have our own factory and multiple advanced production lines, so we always do our best to provide our customers with the best products, prices and services. Therefore, all of our products are well received by domestic and foreign customers. So far , Kingsun sodium naphthalene sulfonate superplasticizers have been exported to more than 30 countries, they are Israel, Iran, Pakistan, Thailand, Singapore, Malaysia,Uzbekistan, Indonesia, Russia, Vietnam, South Africa, Saudi Arabia, UAE, etc.

  • More than 15+ years’ experience in construction industry. Kingsun can makes the business become professional & simple & easy.
  • Kingsun factory has a large warehouse, the advanced production equipment, R&D center and quality inspection center.
  • Product certifications. ISO/BV/SGS can ensure the qualified products and traceability.
  • One-to-one Service. Our sales manager can customize the order for your specific market and help you save cost.
  • Timely response. All the feedback from customers will be treated seriously and promptly.
  • Top quality products and competitive factory prices.

    Please leave your message for quick reply within 24 hours. Thanks!

    Your Name (required)

    Your Email (required)

    Your Phone (required)

    Your Country

    Your Message (required)

    advanced-floating-content-close-btnAnnouncement Dear Customers and Partners, please kindly note that we do NOT have any offices or agents outside China. Please check with our company before processing any business activities.