Sulfonate and sulfate salts cover several distinct areas of formulation chemistry.
In the Aure Chemical portfolio, Sodium Alpha Olefin Sulfonate, Sodium Lauryl Sulfate
and Potassium Lauryl Sulfate are evaluated as anionic surfactants for cleansing,
foaming, wetting and detergent systems. Sodium p-Styrenesulfonate belongs to a
different functional category: it is a polymerizable sulfonate monomer used to
introduce permanent anionic groups into water-soluble polymers, dispersants,
latexes and other functional materials.
Aure Chemical acts as a China-based chemical sourcing and export partner. We work
with qualified Chinese producers to support product matching, document collection,
packing confirmation and international shipment coordination. Specifications,
grades, certifications and commercial availability must be confirmed for the
selected producing source.
Sulfonate salts and sulfate salts are both capable of carrying an anionic charge,
but the connection between the organic portion and the sulfur-containing group is
different. This structural distinction affects hydrolytic stability, formulation
behavior and the types of applications in which the materials are normally evaluated.
Organic sulfate salts such as Sodium Lauryl Sulfate and Potassium Lauryl Sulfate
contain a sulfate ester group, commonly represented as C–O–SO3−.
They are generally prepared through sulfation of a fatty alcohol followed by
neutralization with a suitable base. Their amphiphilic structure combines a
hydrophobic hydrocarbon chain with a hydrophilic sulfate head group, enabling
surface-tension reduction, wetting, detergency and foam generation.
Organic sulfonates contain a direct carbon-to-sulfur bond,
C–SO3−. Sodium Alpha Olefin Sulfonate is an amphiphilic
sulfonate surfactant with a hydrophobic chain and a sulfonate head group.
The direct carbon-sulfur bond generally provides greater resistance to hydrolysis
than a sulfate ester linkage. Actual product performance, however, still depends
on carbon-chain distribution, active matter, salts, pH, temperature, water quality
and the complete formulation.
A sulfonate group alone does not automatically make a material a conventional
detergent surfactant. Sodium p-Styrenesulfonate contains a polymerizable vinyl group
and an aromatic sulfonate group. Its main commercial function is to participate in
polymerization and introduce permanent ionic functionality into a polymer chain.
Its selection criteria are therefore based on monomer purity, polymerization
behavior, comonomer compatibility and final polymer performance rather than
cleansing power or foam height.
Simplified functional comparison. The diagram is intended to explain product
selection logic and is not a complete representation of commercial product
composition.
Two Functional Product Families
The four products on this page should be divided into two families according to
their main commercial function. This distinction prevents a polymer monomer from
being incorrectly evaluated by the same criteria used for a detergent surfactant.
Anionic Surfactants
AOS
SLS / SDS
KLS / KDS
Sodium Alpha Olefin Sulfonate, Sodium Lauryl Sulfate and Potassium Lauryl
Sulfate possess both hydrophobic and hydrophilic portions. They adsorb at
interfaces and may reduce surface tension, improve substrate wetting,
support soil removal and generate or stabilize foam.
They are commonly evaluated in rinse-off personal care, household detergents,
institutional cleaning and selected industrial process formulations. The
appropriate grade depends on active matter, physical form, chain distribution,
moisture, inorganic salts, odor, color, water hardness and compatibility with
other ingredients.
Sodium p-Styrenesulfonate contains a polymerizable vinyl group and an ionic
sulfonate group. During polymerization, the vinyl functionality participates
in chain growth while the sulfonate group remains as a charged pendant group
in the resulting polymer.
It may be evaluated when a polymer developer needs permanent anionic charge,
increased hydrophilicity, particle-dispersion support or modified latex
stability. Its use must be validated within the specific comonomer system,
initiator package and final application.
The following comparison summarizes the chemical type, primary function and
typical application direction of each product. Product names link directly to
the corresponding detail pages.
NaSS, SSS, Sodium 4-Styrenesulfonate,
4-Styrenesulfonic Acid Sodium Salt
Polymerizable aromatic sulfonate monomer
Introduction of fixed anionic functionality into polymers
Water-soluble polymers, dispersants, emulsion polymerization,
waterborne materials and functional polymer research
Commercial form, active matter, purity, moisture, inhibitor, packing and other
specifications must be confirmed against the selected producer’s current
specification and batch COA.
Anionic Surfactants: AOS, SLS and KLS
AOS, SLS and KLS share anionic surface activity, but they differ in chemical
structure, commercial form and formulation response. Product selection should
begin with the intended application and required physical form rather than a
single general statement about foam, mildness or solubility.
Sodium Alpha Olefin Sulfonate
CAS No.
68439-57-6
Abbreviation
AOS
Product Family
Sulfonate surfactant
Sodium Alpha Olefin Sulfonate is produced from linear alpha-olefins through
sulfonation and neutralization. Commercial AOS generally contains a mixture
of alkenesulfonates and hydroxyalkanesulfonates. The actual composition and
carbon-chain distribution depend on the producer and feedstock.
AOS is commonly evaluated where strong foam generation, wetting and detergency
are required. Application areas may include shampoos, body washes, hand
cleansers, hand-dishwashing liquids, household detergents, industrial cleaners
and selected textile or construction-related formulations.
Its direct carbon-sulfur bond provides a different hydrolytic-stability profile
from sulfate ester surfactants. This does not mean AOS will outperform SLS in
every formulation. Foam texture, salt response, viscosity development,
finished-product clarity, odor, water hardness and interactions with
amphoteric or nonionic surfactants should all be tested.
Commercial AOS may be available in liquid, paste or solid forms depending on
the confirmed producer and grade. Buyers should compare active matter,
inorganic salts, unsulfonated matter, moisture, color and physical form
against the requirements of the intended formulation.
Sodium Lauryl Sulfate, Sodium Dodecyl Sulfate and SDS are commonly used names
for the material identified by CAS No. 151-21-3. “Lauryl sulfate” is frequently
used in personal care and detergent markets, while “dodecyl sulfate” is common
in laboratory and technical literature.
Buyers should distinguish the chemical identity from the commercial grade.
Commercial lauryl sulfate products may differ in carbon-chain distribution,
active matter, moisture, free fatty matter, inorganic salts and physical form.
A high-purity laboratory SDS and a commercial surfactant grade should not be
assumed to have identical specifications merely because they use related names.
SLS is evaluated for foam generation, wetting and detergency in shampoos,
body washes, facial or hand cleansers, oral-care formulations, household
cleaners, detergent powders, liquid detergents and various industrial or
laboratory systems. The suitable concentration and surfactant combination
depend on the finished formulation.
Commercial material may be supplied as powder, needles, flakes, paste or
liquid according to producer capability. Solubility, dusting, processing,
product clarity and viscosity response may differ among these forms.
Finished-product irritation and safety cannot be determined from the ingredient
name alone; concentration, pH, exposure, rinse conditions and the complete
formula must be assessed.
Potassium Lauryl Sulfate contains the same general lauryl sulfate anion as
Sodium Lauryl Sulfate but uses potassium as the counterion. Changing the
counterion can influence solubility, crystallization behavior and viscosity
response in some surfactant systems.
The practical effect of using a potassium rather than sodium salt depends on
temperature, concentration, electrolyte content, co-surfactants and the
complete formulation. KLS should therefore be evaluated through comparative
laboratory testing rather than being assumed to be universally more soluble,
milder or more effective than SLS.
KLS may be considered for specialty liquid cleansing systems, personal care
formulations, foam products and other applications in which a potassium-based
anionic surfactant is technically preferred. Compatibility with amphoteric,
nonionic and cationic ingredients, as well as thickener response and finished
product clarity, should be confirmed.
Commercial KLS may be available in aqueous or solid forms depending on the
producer and grade. Buyers should request the current specification for active
matter, moisture, inorganic salts, appearance, pH and physical form before
conducting scale-up trials.
Sodium p-Styrenesulfonate: A Polymerizable Sulfonate Monomer
Sodium p-Styrenesulfonate
CAS No.
2695-37-6
Abbreviations
NaSS / SSS
Product Family
Polymerizable sulfonate monomer
Sodium p-Styrenesulfonate is an aromatic vinyl monomer containing a
polymerizable carbon-carbon double bond and a sodium sulfonate group, generally
located in the para position on the aromatic ring. It is also searched as
Sodium 4-Styrenesulfonate, Sodium Styrene Sulfonate or
4-Styrenesulfonic Acid Sodium Salt.
During free-radical polymerization, the vinyl group can participate in chain
growth with compatible comonomers. The sulfonate group remains attached to the
polymer structure, introducing permanent anionic functionality. Depending on
polymer architecture and incorporation level, this may influence water
solubility, hydrophilicity, charge density, particle dispersion and colloidal
behavior.
NaSS is primarily selected as a functional monomer rather than as a conventional
detergent surfactant. In some polymerization systems it may contribute to
interfacial or latex stability, but it should not be evaluated by the same
cleansing, foam or detergency criteria used for AOS, SLS or KLS.
Potential application areas include water-soluble copolymers, particle
dispersants, water-treatment polymer research, emulsion polymerization,
waterborne materials, adhesives, textile modification and other functional
polymer systems requiring permanent ionic character. Actual performance depends
on the comonomer system, molecular weight, monomer ratio, initiator, temperature,
pH and processing route.
Buyers should review monomer purity, moisture, inhibitor, residual impurities,
appearance, solubility and storage conditions. Polymerization performance and
the final properties of the polymer must be validated in the customer’s
laboratory. Aure Chemical does not present a general addition ratio or universal
polymerization recipe because the appropriate conditions are system-specific.
The correct material depends first on whether the buyer needs surface activity
in a formulation or permanent ionic functionality in a polymer. The following
application sections provide an initial direction and link to the detailed
application pages.
Personal Care Cleansing Formulations
AOS, SLS and KLS may be evaluated as primary or supporting anionic surfactants
in shampoos, body washes, hand cleansers, facial cleansers and other rinse-off
products. They contribute to cleansing, substrate wetting and foam formation,
but their behavior changes when combined with amphoteric or nonionic
co-surfactants.
Formulators should evaluate foam texture, rinse feel, pH, electrolyte response,
viscosity development, fragrance compatibility, clarity and the active
surfactant level of the finished product. High foam does not by itself prove
greater cleansing or better consumer performance.
Product safety and mildness must be assessed in the complete formulation.
Ingredient concentration, contact time, rinse conditions, target population
and market-specific cosmetic requirements should be considered before
commercialization.
AOS and SLS are commonly evaluated for hand-dishwashing products, laundry
detergents, hard-surface cleaners, institutional cleaners and selected
industrial degreasers. KLS may be considered where a potassium-based
surfactant system is being investigated.
Detergency depends on the entire cleaning system, including surfactant blend,
builders, solvents, chelating agents, alkalinity, enzymes, soil type,
temperature and mechanical action. Foam requirements also vary: hand
dishwashing products often favor persistent visible foam, while automatic
or recirculating systems may require lower foam.
Powder processing, liquid clarity, salt tolerance, water hardness and
compatibility with oxidizing or enzyme-containing systems should be reviewed
for the selected grade.
Industrial uses may require rapid substrate wetting, stable foam, controlled
foam collapse or consistent performance under mechanical agitation. AOS and
SLS may be evaluated in industrial cleaning, textile processing, construction
formulations and other process systems, depending on the required foam and
wetting profile.
Temperature, dissolved salts, hardness ions, substrate type, agitation,
recirculation and contamination can significantly alter performance. No
single surfactant should be assumed suitable for all firefighting, mining,
oilfield, textile or construction applications without relevant technical
validation.
Sodium p-Styrenesulfonate may be evaluated when a polymer developer needs to
introduce permanent anionic charge into a water-soluble or water-compatible
polymer. The ionic group may support hydrophilicity, electrostatic particle
stabilization and dispersion behavior.
Potential research and commercial directions include pigment or inorganic
particle dispersants, functional water-treatment polymers and charged
copolymers. Performance is determined by polymer molecular weight, comonomer
identity, charge density, monomer ratio and the chemistry of the target system.
In an emulsion-polymerization system, NaSS can be incorporated into the
polymer rather than remaining only as an adsorbed conventional emulsifier.
This may influence particle charge, colloidal behavior, hydrophilicity and
compatibility with pigments or other dispersed materials.
NaSS should not automatically be described as a complete replacement for a
conventional emulsifier or reactive surfactant. The required emulsifier
package, incorporation level and polymerization route depend on monomer
composition, solids content, particle-size target and final resin performance.
This matrix provides general orientation. “Primary fit” indicates a well-established
functional direction, not guaranteed suitability for every formulation. The
selected commercial grade and finished application must be tested.
Primary fitPotential fitFormulation-dependentNot the intended function
Application
AOS
SLS
KLS
Sodium p-Styrenesulfonate
Main Selection Consideration
Shampoo and body wash
Primary fit
Primary fit
Potential fit
Not intended
Foam profile, rinse feel, viscosity, pH and co-surfactants
Facial and hand cleansers
Potential fit
Formulation-dependent
Potential fit
Not intended
Active level, mildness strategy, surfactant blend and rinse conditions
Household detergents
Primary fit
Primary fit
Formulation-dependent
Not intended
Detergency, cost-in-use, physical form and electrolyte tolerance
Hand-dishwashing liquids
Primary fit
Primary fit
Formulation-dependent
Not intended
Foam persistence under soil load, clarity and hand contact
Industrial cleaning
Primary fit
Potential fit
Formulation-dependent
Not intended
Wetting speed, soil type, foam limits, pH and water hardness
Textile wetting and processing
Potential fit
Potential fit
Formulation-dependent
Not intended
Substrate wetting, foam control and compatibility with process auxiliaries
High-foam process systems
Primary fit
Potential fit
Formulation-dependent
Not intended
Foam volume, stability, agitation, temperature and dissolved salts
Water-soluble polymers
Not intended
Not intended
Not intended
Primary fit
Comonomer compatibility, charge density and molecular weight
Particle-dispersant polymers
Not intended
Not intended
Not intended
Potential fit
Particle chemistry, ionic strength and polymer architecture
Water-treatment polymer research
Not intended
Not intended
Not intended
Potential fit
Target deposit, test method, comonomer ratio and operating conditions
Emulsion polymerization
Not intended
Not intended
Not intended
Primary fit
Latex stability, particle charge, solids and polymerization route
Waterborne coatings and adhesives
Not intended
Not intended
Not intended
Potential fit
Resin compatibility, hydrophilicity, particle stability and end-use testing
Functional ionic polymers
Not intended
Not intended
Not intended
Potential fit
Permanent charge requirement and functional polymer design
Selection principle: Foam height is not a direct measurement of
detergency, and two products with the same chemical name may differ in active
matter, moisture, salts, chain distribution and physical form. A polymerizable
monomer must be selected according to polymerization and final-polymer targets,
not according to conventional surfactant performance.
How to Select the Right Product
Selection Factors for AOS, SLS and KLS
Required active matter and accepted concentration range
Powder, needle, flake, paste or liquid form
Foam volume, stability and desired foam texture
Wetting speed and soil-removal target
Water hardness and electrolyte compatibility
Formulation pH and expected processing temperature
Compatibility with amphoteric and nonionic co-surfactants
Viscosity response and finished-product clarity
Color, odor, moisture and inorganic salt limits
Application-specific regulatory and safety requirements
Selection Factors for Sodium p-Styrenesulfonate
Monomer purity and batch specification
Moisture and residual impurity limits
Inhibitor type and concentration, where applicable
Solid or solution form required by the process
Solubility and handling conditions
Intended comonomer system and monomer incorporation target
Required polymer molecular weight and ionic charge density
Storage conditions and polymerization stability
Finished-polymer dispersion, latex or functional performance
Laboratory and pilot-scale validation requirements
Recommended Procurement Process
Define the intended application and the critical performance requirements.
Confirm whether the project needs a surface-active ingredient or a
polymerizable ionic monomer.
Select a candidate product family and review current producer specifications.
Request the available COA, TDS, SDS and packing information for the proposed grade.
Compare the specification with regulatory, processing and finished-product needs.
Conduct laboratory formulation or polymerization testing before commercial use.
Confirm quantity, packing, transport classification and destination requirements.
Proceed with commercial quotation and shipment planning after technical acceptance.
Quality Documents, Packaging and Export Support
International chemical procurement requires both technical evaluation and practical
confirmation of documentation, packing and shipment conditions. Availability can
differ substantially among products and producing sources.
Documents to Review
Certificate of Analysis:
batch-specific or recent representative test results
Technical Data Sheet:
typical properties, product form and intended application direction
Safety Data Sheet:
classification, handling, storage and transport information
Product Specification:
agreed limits for the selected producer and grade
Origin and Packing Information:
manufacturing country, package type and net weight
Regulatory Declarations:
documents required for the destination market or customer application
REACH coverage, Kosher, Halal, RSPO, GMP, cosmetic declarations and other
certifications cannot be assumed. Each requirement must be confirmed for the
specific product, producer, grade and supply route.
Packaging and International Logistics
Depending on the product form and confirmed producer, possible packing may
include lined bags, fiber drums, plastic drums or IBCs. This is a general
packaging overview rather than a commitment that every format is available
for every product.
Aure Chemical can assist with producer communication, specification matching,
packing confirmation, export documents and freight evaluation. Available
trade terms may include FOB, CFR, CIF, CPT or DAP, depending on product
classification, shipment size, destination and transport feasibility.
Dangerous-goods status, export-control requirements and destination import
conditions must be reviewed case by case. A quotation can only be finalized
after the required quantity, delivery destination and packing are known.
Information needed for an accurate quotation:
product name, required grade or specification, quantity, intended application,
destination port or delivery address, preferred packing and required technical
or regulatory documents.
Frequently Asked Questions
What is the difference between sulfonate and sulfate surfactants?
Sulfate surfactants contain a sulfate ester linkage, represented generally as
C–O–SO3−, while sulfonate surfactants contain a direct
C–SO3− bond. This structural difference can affect
hydrolytic stability and formulation behavior. Actual performance also depends
on chain distribution, active matter, salts, pH, temperature and the complete
surfactant system.
Is Sodium Alpha Olefin Sulfonate the same as SLS?
No. Sodium Alpha Olefin Sulfonate is a sulfonate surfactant produced from
alpha-olefins, while Sodium Lauryl Sulfate is a sulfate ester associated with
lauryl or dodecyl alcohol. They have different structures and may respond
differently to pH, electrolytes, water hardness and surfactant blends.
Are SLS, SDS and Sodium Dodecyl Sulfate the same chemical?
These names are commonly used for the material identified by CAS No. 151-21-3.
However, commercial lauryl sulfate grades may differ in carbon-chain
distribution, active matter, moisture, salts and physical form. Buyers should
compare the actual producer specification rather than relying only on the name.
What is the difference between Sodium Lauryl Sulfate and Potassium Lauryl Sulfate?
They contain the same general lauryl sulfate anion but use different
counterions: sodium for SLS and potassium for KLS. The counterion can influence
solubility, crystallization and viscosity response in some systems. The
practical difference depends on concentration, temperature, electrolytes and
the complete formulation, so comparative testing is recommended.
Which surfactant is suitable for a high-foaming detergent?
AOS and SLS are both commonly evaluated in high-foaming detergent systems.
The preferred material depends on desired foam texture, soil load, water
hardness, electrolyte content, physical form, processing method and
cost-in-use. Foam height alone should not be used as the only selection factor.
Can AOS, SLS and KLS be used in personal care products?
All three may be evaluated in rinse-off personal care systems. Their suitability
depends on active level, product form, co-surfactants, pH, viscosity target,
rinse conditions and regulatory requirements. The safety and mildness of the
finished formulation must be assessed through appropriate testing.
Is Sodium p-Styrenesulfonate a conventional surfactant?
Sodium p-Styrenesulfonate is primarily used as a polymerizable sulfonate
monomer rather than as a conventional detergent surfactant. Its vinyl group
enables incorporation into a polymer chain, while the sulfonate group provides
permanent ionic functionality. In some polymerization systems it may influence
interfacial or colloidal behavior, but its selection logic differs from AOS,
SLS and KLS.
What is Sodium p-Styrenesulfonate used for in polymers?
It may be used as a functional comonomer to introduce fixed anionic groups into
water-soluble polymers, dispersants, latexes and other functional materials.
Potential effects include increased hydrophilicity, altered particle charge
and modified dispersion behavior. Final performance depends on polymer
composition, molecular weight and processing conditions.
What documents should an international buyer request?
Buyers normally review a current or representative COA, TDS, SDS, product
specification, packing information and manufacturing origin. Additional
regulatory or certification documents should be requested according to the
destination market and intended application. Availability differs among
producers and grades.
How can I obtain a quotation from Aure Chemical?
Provide the product name, required specification or grade, estimated quantity,
intended application, destination port or delivery address, preferred packing
and required documents. Aure Chemical will review suitable Chinese supply
sources and provide commercial terms after producer and freight confirmation.
Request a Sulfonate or Sulfate Salt Quotation
To prepare a technically relevant and commercially accurate proposal, please
include the following information in your inquiry:
Product name and CAS number, when available
Required specification, grade, purity or active matter
Trial quantity, shipment quantity or estimated annual demand
Destination port or complete delivery location
Intended formulation or polymer application
Preferred package type and package size
Required COA, TDS, SDS or regulatory declarations
Aure Chemical can assist international buyers with product sourcing,
specification matching, documentation review, packaging confirmation and export
shipment coordination from China. Product specifications, certifications and
supply availability remain subject to final producer confirmation.
