PRODUCTS

SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE

Sodium Methyl Naphthalene Formaldehyde Sulfonate is also used in the textile industry as a dispersing and leveling agent for dyes, particularly disperse dyes.
Sodium Methyl Naphthalene Formaldehyde Sulfonate promotes uniform dye distribution, improves dye penetration into fibers, and enhances color consistency during textile processing.

CAS Number: 68425-94-5
EC Number (EINECS): 270-115-0
Chemical Type: Anionic polymeric surfactant / dispersant
Chemical Family: Sulfonated naphthalene formaldehyde condensates
Molecular Structure: Polymeric aromatic sulfonate (formaldehyde-condensed)
Commonly represented as an approximate repeating unit, e.g. (C₁₁H₉O₄SNa)ₙ, but this is not a true molecular formula
Average Molecular Weight: Variable (typically 500–3000 g/mol, depending on polymerization degree)

SYNONYMS:
Sodium poly naphthalene sulfonate formaldehyde, poly naphthalene sulfonate, naphthalene based superplasticizer, sulphonated naphthalene formaldehyde, SNF, PNS, NSF, MF dispersant powder, sodium methyl naphthalene sulfonate formaldehyde condensate, sodium methyl naphthalene formaldehyde sulfonate dispersant

Sodium Methyl Naphthalene Formaldehyde Sulfonate is an industrial chemical belonging to the family of naphthalene sulfonate formaldehyde condensates, which are polymeric anionic surfactants and dispersing agents formed by reacting methyl-substituted naphthalene sulfonic acids with formaldehyde, followed by neutralization with sodium ions.

The resulting product, Sodium Methyl Naphthalene Formaldehyde Sulfonate, consists of sulfonated aromatic polymer chains that carry multiple sulfonate (-SO₃⁻) groups balanced by sodium cations.
In aqueous solution, these strongly anionic polymers exhibit excellent electrostatic repulsion and steric stabilization, enabling them to act as efficient dispersants and water-reducing agents in a variety of complex formulations.

Sodium Methyl Naphthalene Formaldehyde Sulfonate is typically sold as a brown or dark powder or sometimes in liquid form, with high water solubility and a pH near neutral to slightly basic in solution because of the sodium salt form.
Chemically, sodium methyl naphthalene formaldehyde sulfonate can be understood as a polymer formed by condensation of methyl-naphthalene sulfonate monomer units via methylene bridges (from formaldehyde).

The degree of polymerization can vary, meaning the average molecular weight is not fixed but often lies in the range of several hundred to a few thousand g/mol depending on manufacture and grade.
This polymeric nature gives the compound Sodium Methyl Naphthalene Formaldehyde Sulfonate's dispersing and superplasticizing properties.

Sodium Methyl Naphthalene Formaldehyde Sulfonate is strongly anionic and readily dissolves in water due to the sulfonate groups, but it is generally insoluble in most organic solvents.
The most commonly cited CAS Number for sodium methyl naphthalene formaldehyde sulfonate is 68425-94-5.

Some related naphthalene formaldehyde sulfonate condensates are also referenced under other CAS numbers like 9084-06-4 (depending on specific structural variations or polymer distribution), but for the specific methyl-substituted version the 68425-94-5 identifier is used in chemical supplier data.

These compounds may appear with EC numbers assigned in regulatory databases based on their polymeric nature, but specific EC listings can vary with registry and grade.
In physical terms, Sodium Methyl Naphthalene Formaldehyde Sulfonate appears as a brown to dark brown powder with high water solubility.

When dissolved, the solution pH typically falls in the neutral to slightly alkaline range (approximately pH 7–9).
Sodium Methyl Naphthalene Formaldehyde Sulfonate is stable over a wide range of temperatures and pH because the sulfonate groups are strongly ionized and the aromatic backbone resists degradation under typical conditions.

Sodium Methyl Naphthalene Formaldehyde Sulfonate is non-volatile, not flammable, and has no significant vapor pressure, characteristics that make it safe to handle as a solid in industrial settings when proper precautions are taken.

Sodium Methyl Naphthalene Formaldehyde Sulfonate is a versatile industrial dispersant and water-reducing agent valued for its ability to improve the performance of particulate systems, enhance fluidity and strength in construction materials, and stabilize complex aqueous dispersions across a range of formulated products in industrial chemistry.

USES and APPLICATIONS of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
The primary applications of sodium methyl naphthalene formaldehyde sulfonate come from its ability to disperse fine particles, reduce water requirements, and stabilize suspensions.
In the construction industry, Sodium Methyl Naphthalene Formaldehyde Sulfonate is widely used as a superplasticizer or high-range water reducer in concrete and cement formulations.

When added to concrete mixes, Sodium Methyl Naphthalene Formaldehyde Sulfonate can significantly improve fluidity and workability while allowing a reduction in water content of up to 10–25 % without sacrificing performance.
This results in concrete with higher strength, improved flowability, reduced permeability, and better surface finish — properties that are especially valuable in high-strength, self-compacting, or high-performance concrete used in bridges, dams, high-rise buildings, and other infrastructure projects.

Sodium Methyl Naphthalene Formaldehyde Sulfonate enhances the dispersion of cement particles and improves hydration efficiency, often leading to enhanced early and ultimate strength.
Beyond construction, Sodium Methyl Naphthalene Formaldehyde Sulfonate is used in textile processing as a dispersing agent for dyes — promoting even distribution and preventing agglomeration of dyestuffs in aqueous solutions — and in the pigment, ceramic, and paint industries for similar dispersion and stabilizing roles.

Sodium Methyl Naphthalene Formaldehyde Sulfonate finds use in agrochemical formulations (e.g., wettable powders, suspension concentrates) where uniform dispersion of active ingredients is critical, as well as in industrial cleaning systems to help keep soil and particulate matter suspended rather than redepositing on surfaces.

The benefits and characteristics of Sodium Methyl Naphthalene Formaldehyde Sulfonate arise from its polymeric anionic nature and strong electrostatic dispersion.
Sodium Methyl Naphthalene Formaldehyde Sulfonate delivers excellent dispersing performance, thermal stability, compatibility with a broad range of formulation components, and low foaming in solution — a valuable trait in industrial systems where foam can impair processing or mixing.

Sodium Methyl Naphthalene Formaldehyde Sulfonate's sulfonated aromatic backbone also offers acid, alkali, and hard-water resistance, meaning performance does not degrade in a variety of environmental conditions.
When used as a water reducer in concrete, Sodium Methyl Naphthalene Formaldehyde Sulfonate improves compressive strength, lowers porosity, enhances durability, and can reduce the risk of cracking as the mix cures.

Sodium Methyl Naphthalene Formaldehyde Sulfonate's high purity makes cement particles with high dispersancy, low foaming, high range water reducing and obvious strengthening so that we can accelerate project mould turnover and construction speed, and save cement, and also improve cement mobility and workability.

Sodium Methyl Naphthalene Formaldehyde Sulfonate is a high range concrete admixture of concrete cast-in-place, prefabricating, pump and curing.
Sodium Methyl Naphthalene Formaldehyde Sulfonate has a good adaptability to various cements and it is not erodent to reinforcing bar and nonpoisonous and pollution-free.

Sodium Methyl Naphthalene Formaldehyde Sulfonate has been applied to the highway, bridge, tunnel, water conservancy hydroelectric project, port, quay, skyscraper, power engineering, industrial civil building, prestressing force component and high range concrete etc.
Sodium Methyl Naphthalene Formaldehyde Sulfonate uses and applications include: Dispersant for suspension concentrates, suspo-emulsions, water disp. grans., wettable powders

Sodium methyl naphthalene formaldehyde sulfonate is widely used as a high-performance dispersing agent in a variety of industrial applications.
Sodium Methyl Naphthalene Formaldehyde Sulfonate is commonly applied in the construction industry as a superplasticizer for concrete and cement formulations, where it improves workability, flowability, and strength while reducing water consumption.

By effectively dispersing cement particles, Sodium Methyl Naphthalene Formaldehyde Sulfonate enhances setting behavior and overall durability of concrete products.
In the chemical and materials industries, sodium methyl naphthalene formaldehyde sulfonate is used as a dispersant for pigments, fillers, and powders.

Sodium Methyl Naphthalene Formaldehyde Sulfonate helps prevent agglomeration, improves particle distribution, and increases stability in aqueous systems.
This makes Sodium Methyl Naphthalene Formaldehyde Sulfonate valuable in the production of paints, coatings, inks, and dyes, where consistent color strength, gloss, and dispersion quality are required.

In the agrochemical sector, sodium methyl naphthalene formaldehyde sulfonate is used as a dispersant and wetting agent in pesticide, herbicide, and fertilizer formulations.
Sodium Methyl Naphthalene Formaldehyde Sulfonate improves the dispersion of active ingredients in water, ensuring better stability, spray performance, and effectiveness of the final product.

Additionally, Sodium Methyl Naphthalene Formaldehyde Sulfonate is applied in the ceramics and mineral processing industries to disperse fine powders such as clays, calcium carbonate, and other inorganic materials.
By reducing slurry viscosity and improving suspension stability, Sodium Methyl Naphthalene Formaldehyde Sulfonate supports efficient processing and high-quality finished products.

Sodium methyl naphthalene formaldehyde sulfonate is also used in leather processing, rubber compounding, and oilfield chemicals, where its dispersing and wetting properties contribute to improved process control and product performance across a wide range of industrial systems.

PHYSICAL and CHEMICAL PROPERTIES of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
CAS Number: 68425-94-5
EC Number (EINECS): 270-115-0
Chemical Type: Anionic polymeric surfactant / dispersant
Chemical Family: Sulfonated naphthalene formaldehyde condensates
Appearance: Brown to dark brown powder or granules
Odor: Mild or characteristic, non-pungent
Physical State: Solid
Solubility in Water: Completely soluble
Solubility in Organic Solvents: Insoluble or very slightly soluble

Bulk Density: ~0.4–0.6 g/cm³ (grade-dependent)
Particle Size: Fine powder (varies by supplier)
Hygroscopicity: Slightly hygroscopic
Foaming Property: Low foaming
Volatility: Non-volatile
Chemical Properties
Molecular Structure: Polymeric aromatic sulfonate (formaldehyde-condensed)
Average Molecular Weight: Variable (typically 500–3000 g/mol, depending on polymerization degree)
Ionic Nature: Strongly anionic

pH (10% aqueous solution): Approximately 7.0 – 9.0
Thermal Stability: Stable under normal industrial temperatures
Chemical Stability: Stable under normal storage and use conditions
Reactivity: Non-reactive under standard conditions
Oxidizing Properties: None
Reducing Properties: None
Flammability: Non-flammable
Explosive Properties: None
Corrosiveness: Non-corrosive

Resistance: Resistant to acids, alkalis, and hard water
Product Sodium methyl naphthalene formaldehyde sulfonate
CAS: 68425-94-5
Formula: (CH2O.Na.Unspecified)x
Synonym : Sodium methyl naphthalene formaldehyde sulfonate
Class: Specialty Chemicals
Function: Dispersant

FIRST AID MEASURES of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.

FIRE FIGHTING MEASURES of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.

STABILITY and REACTIVITY of SODIUM METHYL NAPHTHALENE FORMALDEHYDE SULFONATE:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available