Sodium Naphthalene Sulfonate

FDN-A is a high range water reducer, high concentrate naphthalene-based superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS, etc.

Product Name Sodium Naphthalene Sulfonate FDN-A (Na2SO4 ≤5%)
Type FDN-A (Na2SO4 ≤5%)
Package 25 kg / bag , 650 kg / bulk bag
Dry Matter 92% min
CAS No. 8061-51-6
HS Code 38040000

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Features Technical Specifications Use Advantage Other Related Products

Product Features

Appearance
Generally white or light yellow powder or granules, with certain hygroscopicity and easily soluble in water.
Solubility
Easily soluble in water, forming a transparent solution. It can be well mixed with raw materials such as cement, sand, and stone, and is suitable for various water-based formulas.
PH value
Generally neutral to slightly alkaline (pH 8-10), with good chemical stability.
Hygroscopicity
It has a certain degree of moisture absorption in the air, so it is necessary to pay attention to moisture prevention when storing.
Environmental protection
Non-toxic, harmless, meets environmental requirements, suitable for environmental protection.

Specification

Technical Specifications

Project	Specification value	Remarks
Appearance	White or light yellow powder/granules	No obvious impurities
Solubility	Soluble in water to form a transparent solution	-
pH value	8.0 - 10.0	Neutral to slightly alkaline
Moisture content	≤5%	Moisture proof treatment
Water solubility	≥90%	Good water solubility
Hygroscopicity	Strong hygroscopicity	Sealed during storage
Molecular weight	300-8000	Can be customized according to needs

Uses and Application Scenarios

Construction Industry
As a concrete water reducer , it can improve the fluidity, strength and durability of concrete. Especially in the production of high-strength and high-performance concrete, it can reduce the amount of cement and reduce the cost.
Ceramic Industry
As a dispersant , it can effectively reduce the aggregation of raw material particles and improve the fluidity and uniformity of ceramic slurry after being added to ceramic slurry.
Mining Industry
As a dispersant in the ore flotation process, it improves the flotation effect of minerals, promotes the separation of minerals, and improves the extraction efficiency of ores.
Pigment Industry
As a dispersant in coatings and inks, it can improve the dispersion of pigment particles, enhance the color saturation and uniformity of coatings.
Pulp and Paper Industry
As a papermaking aid , it can improve the dispersibility of pulp and the strength of paper.

Advantage

Efficient Water Reduction and Dispersion
Significantly improve the strength and fluidity of concrete, reduce the amount of cement used, and achieve the effect of environmental protection and energy saving.
Enhancing Work
Improve workability in construction and other industries, make construction easier, and increase construction efficiency.
High Cost Performance
Compared to traditional water reducers, sodium naphthalene sulfonate has a higher cost performance and is widely used in various production processes, saving costs.
Environmental Protection
Non-toxic and harmless, meets international environmental requirements, suitable for various industries that require environmental certification.

Operating instructions

Concrete Applications
The recommended usage is 0.2% -0.5% of the cement quality. According to the requirements of concrete strength and fluidity, sodium naphthalene sulfonate should be added in moderation. It needs to be fully mixed with other raw materials (such as cement, sand, etc.) to ensure uniform distribution.
Ceramic Applications
When used as a dispersant in ceramic raw materials, it is usually added at 0.2% -0.5% of the raw material mass and mixed evenly before use.
Mining Applications
When used in ore flotation, the recommended addition amount is 0.1% -0.3% of the slurry.
Pigment application
In coatings and inks, add 0.5% -1% of the total pigment to help disperse pigment particles.
Pulp Application
It can be added at 0.5% -1% of the pulp weight to improve dispersion and paper strength.

Performance

Efficient Water Reduction
As a highly efficient water reducer, it can effectively reduce the amount of water in concrete, improve the fluidity, strength, and durability of concrete.
Decentralization
It can effectively disperse mineral particles, pigments, suspensions, etc., improve the uniformity and stability of products, and is widely used in pigments, coatings, ceramics and other fields.
Chemical Stability
Strong stability, not easily decomposed under normal temperature and humidity conditions, and will not undergo significant changes even after long-term storage.
Improve Strength and Workability
It can effectively improve the compressive strength and workability of concrete. Under the same water-cement ratio, it can reduce moisture and improve the strength of the material.

Packaging &storage &handling

Packaging
Standard packaging is 25kg paper-plastic composite bag or ton bag . Packaging specifications can be customized according to customer needs.
Storage
It should be stored in a cool, dry, ventilated place, away from direct sunlight and humid environment. The shelf life is generally 12 months, and it can be stored for a long time unopened. After opening, it should be used promptly and ensure that the packaging is intact to prevent moisture.
Handling
During the handling process, avoid high temperature and humid environments, avoid bag damage, and keep it dry and sealed.

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