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Sodium Petroleum Sulfonate is used by chemically bonding oil to metal, sulfonates prevent water and air from reaching the surface of the metal.
Sodium Petroleum Sulfonate is used ore Flotation, Demulsifiers, Motor Oil and Fuel Additives, and Overbasing.
Sodium Petroleum Sulfonate acts as a rust inhibitor and emulsifier in cutting oils and lubricants.
CAS Number: 68608-26-4
EC Number (EINECS): 271-781-5
IUPAC / Registry Name: Petroleum, mixture of C10–47 saturated linear alkaryl derived cyclopentan/cyclohexane/benzene sulfonic acid sodium salts (varies by source)
Generalized chemical formula: R–SO₃Na
Where R = alkyl or alkyl-aryl hydrocarbon chains derived from petroleum.
MOLECULAR WEIGHT: Not fixed (mixture)
Typical average molecular weight range: ≈ 300 – 500 g/mol
(The exact value depends on petroleum fraction, degree of sulfonation, and alkyl chain length.)
SYNONYMS:
Sulfonicacids,petroleum,sodiumsalts, SULPHONICACIDS,PETROLEUM,SODIUMSALTS, SODIUMPETROLEUMSULFONICACIDS, Petroleumsulfonicacidssodiumsalts, SodiuMpetrol, SodiumPetroleumsulphonateT702, Sulfonic acids, petroleum, sodium salts, Petroleum sulfonic acid, sodium salt, Oil-soluble petroleum sulfonate, sodium salt, Oil-soluble petroleum sulfonates, sodium salts, Sodium petrol, Sodium petroleum sulphonate, Sulfonated petroleum soap, Sulfonated petroleum, sodium salt, T702, Petroleum sulfonic acids, sodium salts, Mineral oil sulfonic acids, sodium salts
Sodium Petroleum Sulfonate is an oil-based detergent.
Sodium Petroleum Sulfonate is made by reacting petroleum oil with sulfuric acid and then neutralizing it with sodium hydroxide.
The result is a brown, thick liquid that mixes well with oil but not with water.
Sodium Petroleum Sulfonate has a dual nature.
One side attracts oil, and the other attracts water.
Because of this, Sodium Petroleum Sulfonate works as a bridge between them.
Sodium Petroleum Sulfonate keeps oil and water mixed evenly and prevents separation.
Sodium Petroleum Sulfonate is safe, stable, and easy to use.
Most often, Sodium Petroleum Sulfonate appears as a brown, sticky liquid with a mild oil smell.
Sodium sulfonates are primary emulsifiers for use in soluble oils and semi-synthetic metalworking fluids for metal cutting, drawing and grinding operations.
They provide emulsification properties and corrosion inhibition.
We have a wide variety of products based on molecular weights and active content.
Sodium sulfonates in soluble oils metalworking fluids for metal cutting, drawing and grinding operations.
It is an excellent emulsifier for naphthenic and paraffinic oils and has the added benefit of not containing sulfur, which typically acts as a food source for bacteria.
Sodium Petroleum Sulfonate, also known as petroleum sulfonate or petroleum sodium sulfonate, is a widely used surfactant in the petroleum industry, particularly in oilfield applications.
Sodium Petroleum Sulfonate is produced through a sulfonation process, which involves reacting petroleum-based feedstock with sulfuric acid to form the sulfonic acid, followed by neutralization with sodium hydroxide to produce the sodium salt of the sulfonic acid.
Sodium Petroleum Sulfonate is an oil-soluble, medium molecular weight refined sodium petroleum sulfonate with excellent emulsification and ease of formulation.
Sodium Petroleum Sulfonate, commonly known as T702, is a versatile chemical compound with a wide range of applications.
Sodium Petroleum Sulfonate is obtained by sulfonating the petroleum refining fraction, extracting with ethanol alkali, deoiling, and dehydrating.
In addition to sodium petroleum sulfonate, it also contains mineral oil and inorganic salts.
Sodium Petroleum Sulfonate is a unique material due to its dual function as a surfactant and an anti-corrosion.
The polar nature of the end of the sulfonate molecule acts as a typical anionic surfactant and orients itself with water or other polar materials while the hydrocarbon tail bridges the nonpolar phase.
Sodium sulfonates have had a long history of use in metalworking fluids.
Sodium Petroleum Sulfonate functions as emulsifiers and corrosion inhibitor.
In liquid system, sulfonates can hold oil and water apart so that they can co-exist & form an emulsion.
Sodium Petroleum Sulfonate is specially designed for use in Emulsifier for soluble cutting oils as well as Metal working oils.
Sodium Petroleum Sulfonate is an anionic surfactant and also a good water-soluble metal rust preventive.
Sodium Petroleum Sulfonate has strong hydrophilicity, good anti-rust performance, and excellent emulsification performance.
Sodium Petroleum Sulfonate is an important additive in metalworking fluids and anti-rust lubricating greases.
Sodium petroleum sulfonate with a molecular weight of 500-600 has the best anti-rust performance, and sodium petroleum sulfonate with a molecular weight of 450-500 has good emulsification.
In the lubricant industry, Sodium petroleum sulfonate is rarely used independently as an anti-rust additive, it is mainly used to blend emulsified metalworking fluids.
USES and APPLICATIONS of SODIUM PETROLEUM SULFONATE:
Sodium petroleum sulfonate has widespread industrial applications owing to its surface-active, emulsifying, and corrosion-inhibiting properties:
Metalworking Fluids: Sodium Petroleum Sulfonate is used as a primary emulsifier and corrosion inhibitor in soluble cutting oils, metalworking lubricants, and hydraulic fluids.
Rust Preventives & Corrosion Protection: Sodium Petroleum Sulfonate forms a protective film on metal surfaces, helping prevent oxidation and moisture-induced corrosion.
Lubricating Oil Additives: Sodium Petroleum Sulfonate enhances dispersancy and oil-water compatibility in lubricant and grease formulations.
Industrial Cleaners & Degreasers: Sodium Petroleum Sulfonate provides excellent detergency and wetting properties for heavy cleaning of machinery and metal surfaces.
Oilfield Chemicals use of Sodium Petroleum Sulfonate: Emulsifier/demulsifier in drilling fluids, crude oil treatment, and other petroleum processing streams.
Textile Auxiliaries: Sodium Petroleum Sulfonate is used in textile processing as a wetting agent and dispersant.
Ore Flotation: Sodium Petroleum Sulfonate functions as a collector and wetting agent in mineral flotation processes.
Paints, Inks & Coatings: Sodium Petroleum Sulfonate is used dispersing agent for pigments and additives.
Application / Composition of Sodium Petroleum Sulfonate: Sodium Petroleum Sulphonate / Sulfonate is widely used in the manufacture of Soluble Cutting Oils, Emulsifiers of Soluble Cutting Oil, Rust Preventives, Leather Chemicals / Fat Liquor, Metal Treatment Chemicals, Textile Auxiliaries, ore Flotation Chemicals, Inks etc.
Sodium Petroleum Sulfonates are unique materials because of their dual function as surfactant & rust inhibitors.
The polar nature of the sulfonate end of molecule function as a typical anionic surfactant, orienting itself with water of other polar materials while the hydrocarbon trail provides the bridge to the non-polar phase.
Sodium Petroleum Sulfonate is recommended for metal working fluids, anticorrosion compounds, lube additives, motor oil, fuel additives & textile processing oils.
Applications of SPS or Sodium Petroleum Sulfonate: Metalworking Fluids, Anti-Corrosion Compounds, On solid surface, sulfonates functions like adhesive, holding oil to metal.
Sodium Petroleum Sulfonate is used by chemically bonding oil to metal, sulfonates prevent water and air from reaching the surface of the metal.
Sodium Petroleum Sulfonate is used ore Flotation, Demulsifiers, Motor Oil and Fuel Additives, and Overbasing.
Lubricants and Metalworking Fluids: Sodium Petroleum Sulfonate acts as a rust inhibitor and emulsifier in cutting oils and lubricants.
Agriculture: Sodium Petroleum Sulfonate is used in pesticide formulations as a wetting agent or dispersant.
Cleaners and Degreasers: Sodium Petroleum Sulfonate is found in industrial and household cleaning products for its grease-cutting properties.
Oilfield Applications: Sodium Petroleum Sulfonate is used in drilling muds, corrosion inhibitors, and demulsifiers.
Paints and Coatings: Sodium Petroleum Sulfonate functions as a dispersant or wetting agent.
Sodium Petroleum Sulfonate is used as emulsifier, rust preventive, dispersing agent, lubricant additive.
Applications of Sodium Petroleum Sulfonate: Sodium Petroleum Sulfonate plays a big role in many industries.
Sodium Petroleum Sulfonate is widely used in the manufacture of Soluble Cutting Oils, Emulsifiers of Soluble Cutting Oils, Rust Preventives, Leather Chemicals, Fat Liquor, Metal Treatment Chemicals, Metal working fluid, Wire drawing oils, Corrosion inhibitors, Protective coatings, Degreasing agent, Fuel additive, Lube oil additive, Textile Auxiliaries, ore Flotation Chemicals, Inks etc.
Sodium Petroleum Sulfonate is miscible with Oil and Solvent.
Sodium Petroleum Sulfonate is obtained from sulfonation of base oil, neutralized by Sodium Hydroxide.
Sodium Petroleum Sulfonate mainly works as a Surface Active Agent, Emulsification & Dispersion of Liquids, Wetting and Dispersion of Liquid –
Solid System, Inhibition of Rust & Corrosion, Dispersion and Wetting of Solids.
Polar Solvent Aid: Sodium Petroleum Sulfonate can act as a solvent aid for various polar substances in oil-based formulations.
Chemical Intermediates: Sodium Petroleum Sulfonate serves as an intermediate in the synthesis of other chemicals for various industrial applications.
Sodium Petroleum Sulfonate can be used as primary emulsifier or co-emulsifier formulations of soluble oils and semi-synthetic type metalworking fluid.
Sodium Petroleum Sulfonate emulsifier provides excellent Excellent dispersing and wetting properties.
Sodium Petroleum Sulfonate can be used in metal working fluid as corrosion inhibitor, emulsifier and anti rust agent.
Sodium Petroleum Sulfonate can be used in semi-synthetic and emulsified oils.
Sodium Petroleum Sulfonate gives moderate to best results in combinations with barium, calcium petroleum sulfonate in Rust Preventive oil formulations for achieving water displacement characteristics in addition to humidity cabinet test results.
Sodium Petroleum Sulfonate is used metal working fluids, corrosion preventives, drawing compounds, textile oil cleaners, fast quenching oils, emulsions, ore flotation, paints, printing inks etc.
-Lubricating Oils use of Sodium Petroleum Sulfonate:
In motor and machine oils, Sodium Petroleum Sulfonate acts as a detergent.
Sodium Petroleum Sulfonate keeps the inside of engines clean by removing dirt and sludge.
Sodium Petroleum Sulfonate also stops carbon deposits from building up.
-Metalworking Fluids use of Sodium Petroleum Sulfonate:
In metal cutting or grinding fluids, Sodium Petroleum Sulfonate works as an emulsifier and rust inhibitor.
Sodium Petroleum Sulfonate makes the oil and water mix better.
This keeps tools cool and protects metal surfaces from corrosion.
-Rust Preventive Oils use of Sodium Petroleum Sulfonate:
When applied to metal parts, Sodium Petroleum Sulfonate forms a protective film that blocks air and moisture.
This prevents rust even during long storage or transport.
-Grease Manufacturing uses of Sodium Petroleum Sulfonate:
Sodium Petroleum Sulfonate helps grease stick better to metal surfaces.
Because of this, grease made with Sodium Petroleum Sulfonate resists water and heat, giving longer protection.
-Industrial Cleaners use of Sodium Petroleum Sulfonate:
Sodium Petroleum Sulfonate is used in oil-field chemicals, engine degreasers, and industrial cleaning products.
Sodium Petroleum Sulfonate removes oil stains and metal dirt easily.
-Sodium Petroleum Sulphonate for Metal Working Fluids:
Sodium Petroleum Sulfonate functions as emulsifiers and corrosion inhibitors in metalworking fluids.
In liquid system, sulphonates helps in formation of an emulsion by holding oil and water apart so that they can co-exist & form.
-Sodium Petroleum Sulfonate for Anti-Corrosion Compounds:
Sodium Petroleum Sulfonate provides excellent moisture barriers and adhere to metal surfaces.
Sodium Petroleum Sulfonate can be compounded with petroleum oils, waxes, petroleum and various synthetic materials and the finished products find applications as preservative oils and automotive rust proofing formulations.
Sodium Petroleum Sulfonate forms thin film when dissolved to a wide range of solvents.
Sodium Petroleum Sulfonate acts as adhesive holding oil to metal on solid surface.
Sodium Petroleum Sulfonate binds oil to metal chemically, preventing water and air from reaching the surface of the metal.
-Sodium Petroleum Sulfonate for Ore Flotation
Sodium Petroleum Sulfonate serves as flotation agents for various metals and minerals.
Sodium Petroleum Sulfonate has the ability to wet the surface of particles rendering the ore hydrophobic.
This allows an ore adhered to air bubbles and moved to the surface in the froth.
Sodium Petroleum Sulfonate binds the ore particles to air bubbles in froth and thus allow them to rise and separate from rock.
-Sodium Petroleum Sulfonate for De-emulsifiers
Sodium Petroleum Sulfonate acts as de-emulsifier.
A bulky structure prevents them from forming a continuous protective film around a droplet.
Sodium Petroleum Sulfonate allows two droplets to contact one another, forming a large droplet which separates from solutions.
-Sodium Petroleum Sulfonate for Motor Oil and Fuel Additives:
For this application, Sodium Petroleum Sulfonate is often converted to calcium or barium salts; though in some situations the sodium sulphonates may be preferred.
When Sodium Petroleum Sulfonate is used as additives, detergency and rust inhibitive properties are the most important functions of GL 1649H.
-Sodium Petroleum Sulfonate for Overbasing
Sodium Petroleum Sulfonate is a process of beefing up a sulphonate molecule with extra atoms including calcium and magnesium to seek out and neutralize excess acids in a mixture.
Over basing is typically used in motor oil additives.
-Textile and Printing Auxiliary uses of Sodium Petroleum Sulfonate:
*Textile Industry:
In the textile industry, Sodium Petroleum Sulfonate serves as an auxiliary agent in textile and dyeing processes, improving the wettability and dyeability of fabrics.
*Printing Industry:
Sodium Petroleum Sulfonate also finds application in the printing industry as an aid in ink formulation and printing processes.
-Industrial Cleaning and Lubrication uses of Sodium Petroleum Sulfonate:
*Cleaning Oils:
Sodium Petroleum Sulfonate is used in the preparation of cleaning oils for workshops, where it helps in the removal of grease, oil, and other contaminants from surfaces.
*Lubricants:
Its emulsifying and rust-inhibiting properties make Sodium Petroleum Sulfonate a valuable component in the formulation of lubricants and cutting fluids, ensuring smooth operation and prolonged tool life in machining processes.
-Rust and Corrosion Inhibitor uses of Sodium Petroleum Sulfonate:
*Metal Protection:
Sodium Petroleum Sulfonate exhibits strong hydrophilic properties and acts as a corrosion inhibitor for metals.
Sodium Petroleum Sulfonate provides excellent rust protection for ferrous metals and brass, making it ideal for use in rust-preventive oils, greases, and cutting fluids.
*Anti-Humidity and Salt Fog Resistance:
Sodium Petroleum Sulfonate's ability to resist humidity, salt fog, and displacement by saltwater and regular water further enhances its effectiveness as a rust inhibitor in harsh environments.
-Emulsifier and Surfactant uses of Sodium Petroleum Sulfonate:
*Emulsifying Agent:
Due to its good emulsifying properties, Sodium Petroleum Sulfonate is used as an emulsifier in various industrial processes, such as in the polymerization of vinyl chloride.
*Surfactant Properties:
As a surfactant, Sodium Petroleum Sulfonate can be used to formulate metal cutting emulsified oils and other liquid detergents, enhancing their cleaning and wetting capabilities.
APPLICATIONS of SODIUM PETROLEUM SULFONATE:
✔ Sodium Petroleum Sulfonate provides excellent emulsions quality and corrosion resistance.
Sodium Petroleum Sulfonate low molecular weight sulfonates provide excellent emulsion performance, while the GL1649H high molecular weight sulfonates provide an unsurpassed rust preventive coating.
✔ Depending on the application, the balance of these two properties is critical for performance in any market.
In the oilfield, drilling and mining markets, which are less concerned with rust prevention, the strong emulsifier Sodium Petroleum Sulfonate is preferred.
✔ In the industrial oils market, where rust prevention is a large concern, the corrosion prevention of the Sodium Petroleum Sulfonate is commonly specified in rust preventive oil.
✔ In the metalworking industry, a balance of both the emulsion and corrosion performances is critical to a successful formulation.
CHARACTERISTICS, PROPERTIES, BENEFITS of SODIUM PETROLEUM SULFONATE:
Sodium petroleum sulfonate’s utility stems from the unique combination of an anionic sulfonate head group that interacts with water and a hydrophobic petroleum-derived tail that binds to oils and non-polar substances.
This dual nature gives Sodium Petroleum Sulfonate:
Strong emulsifying and dispersing capability — especially in oil-in-water systems and complex fluid blends.
Wetting action — Sodium Petroleum Sulfonate enhances the contact of liquids on solid surfaces.
Rust and corrosion inhibition — Sodium Petroleum Sulfonate forms protective films on metals.
Stability in challenging environments — Sodium Petroleum Sulfonate maintains function in the presence of electrolytes and hard water.
Versatile performance in industrial fluid systems such as lubrication, cleaning, flotation, and metalworking.
HERE’S A GENERAL OVERVIEW OF THE MANUFACTURING PROCESS of SODIUM PETROLEUM SULFONATE:
① Sulfonation:
The first step involves sulfonating the petroleum-based feedstock.
The feedstock is typically a petroleum fraction or a mixture of hydrocarbons obtained from crude oil distillation or other refining processes.
The sulfonation is performed by reacting the petroleum feedstock with concentrated sulfuric acid (H2SO4).
This reaction introduces the sulfonic acid functional group (-SO3H) into the hydrocarbon molecules, converting them into petroleum sulfonic acids.
② Neutralization:
After the sulfonation reaction, the resulting petroleum sulfonic acids are converted into their corresponding salts by neutralization with sodium hydroxide (NaOH).
Sodium hydroxide is added to the sulfonic acid mixture to react with the acidic groups (-SO3H), forming the sodium salt of the petroleum sulfonate (sodium petroleum sulfonate).
③ Separation and purification:
The mixture is then allowed to settle, and the sodium petroleum sulfonate layer separates from any unreacted materials, by-products, or impurities.
The separated sodium petroleum sulfonate is further purified through various processes like filtration, centrifugation, or washing to remove any remaining impurities or traces of sulfuric acid and sodium hydroxide.
④ Drying:
The final purified sodium petroleum sulfonate is typically in the form of a viscous liquid or solid depending on its concentration.
In some cases, additional drying steps may be required to remove any residual water or moisture content from the product.
WHAT DO WE NEED TO NOTICE ABOUT SODIUM PETROLEUM SULFONATE？
When dealing with sodium petroleum sulfonate, there are several important considerations to keep in mind：
① Application suitability:
Sodium petroleum sulfonate is primarily used as a dispersant and emulsifier in oilfield applications, such as drilling fluids, enhanced oil recovery, and well stimulation.
Ensure that you are using the right grade and formulation suitable for your specific application.
② Compatibility:
Check the compatibility of sodium petroleum sulfonate with other additives and chemicals in your formulation.
Sodium Petroleum Sulfonate is essential to avoid any adverse reactions or precipitation that could affect the performance of the product.
③ Concentration:
The concentration of sodium petroleum sulfonate can vary depending on the intended application.
Follow the manufacturer’s guidelines and recommended dosages for the desired effect and performance.
④ Environmental impact:
Consider the potential environmental impact of sodium petroleum sulfonate, especially in applications where it may be discharged into the environment.
Follow proper disposal procedures and adhere to any relevant environmental regulations.
⑤ Health and safety:
Sodium petroleum sulfonate may have some health and safety considerations.
It’s crucial to handle the product with care, wear appropriate protective equipment when needed, and follow the manufacturer’s safety data sheet (SDS) guidelines.
⑥ Storage and handling:
Store sodium petroleum sulfonate in a cool, dry place, away from direct sunlight and heat sources.
Proper handling and storage will help maintain Sodium Petroleum Sulfonate’s stability and performance.
⑦ Regulatory compliance:
Ensure that the sodium petroleum sulfonate you use complies with relevant industry standards and regulations.
This is especially important if Sodium Petroleum Sulfonate is intended for use in applications such as food, pharmaceuticals, or other sensitive environments.
⑧ Material compatibility:
Sodium petroleum sulfonate may have varying effects on different materials, especially rubber and elastomers.
If your application involves contact with rubber components, check for compatibility to avoid any adverse interactions.
⑨ Manufacturer’s guidelines:
Always refer to the manufacturer’s technical data sheets and recommendations for proper usage, storage, and handling of sodium petroleum sulfonate.
⑩ Quality control:
If you are formulating products using sodium petroleum sulfonate, implement strict quality control measures to ensure consistent performance and quality of your end products.
FEATURES AND BENEFITS of SODIUM PETROLEUM SULFONATE:
Sodium Petroleum Sulfonate can be widely used as the primary emulsifier in the formulation of lubricating compounds.
Sodium Petroleum Sulfonate is used in the following cases:
*Fluid cutting
*Metalworking lubricants
*Detergency
*rust inhibitive
*automotive rust proofing
KEY PROPERTIES of SODIUM PETROLEUM SULFONATE:
*Surface-Active Agent:
Sodium Petroleum Sulfonate reduces surface tension between liquids or between liquid and solid.
*Emulsifier:
Sodium Petroleum Sulfonate helps mix oil and water by stabilizing emulsions.
*Detergency:
Sodium Petroleum Sulfonate offers excellent cleaning and wetting abilities.
*Corrosion Inhibitor:
Sodium Petroleum Sulfonate is often used in metalworking fluids to protect surfaces from rust and corrosion.
*Wetting Agent:
Sodium Petroleum Sulfonate enhances penetration of liquids into surfaces.
PRODUCTION PROCESS of SODIUM PETROLEUM SULFONATE:
According to the source of sulfonic acid, rust preventive additive sodium sulfonate can be divided into sodium petroleum sulfonate and synthetic sodium sulfonate (mainly sodium heavy alkylbenzene sulfonate and sodium dinonylnaphthalene sulfonate).
The sulfonic acid of sodium petroleum sulfonate is obtained from the by-product (acid residue) of white oil production.
In addition to sulfonic acid, this by-product usually contains mineral oil and inorganic salts.
Synthetic sulfonates are often synthesized from dinonylnaphthalene and heavy alkylbenzene (a by-product of alkylbenzene production).
KEY BENEFITS of SODIUM PETROLEUM SULFONATE:
*Strong rust protection –
Sodium Petroleum Sulfonate keeps metals safe from air and moisture.
*Excellent cleaning –
Sodium Petroleum Sulfonate removes dirt and sludge from engine oils.
*Good emulsifying ability –
Sodium Petroleum Sulfonate mixes oil and water evenly.
*Thermal stability –
Sodium Petroleum Sulfonate works well even under high heat.
*Wide compatibility –
Sodium Petroleum Sulfonate blends easily with other additives.
*Longer machine life –
Sodium Petroleum Sulfonate reduces wear and friction.
Because of these features, Sodium Petroleum Sulfonate is one of the most trusted surfactants in oil-based formulations.
HOW SODIUM PETROLEUM SULFONATE WORKS:
Sodium Petroleum Sulfonate lowers the surface tension between oil and water.
Sodium Petroleum Sulfonate keeps small oil droplets evenly spread in a mixture, so the blend stays stable.
Sodium Petroleum Sulfonate part attaches to metal surfaces, forming a thin, strong layer.
This film stops air and moisture from reaching the surface, preventing rust and corrosion.
As a result, lubricants and greases last longer, and machines run smoothly with less friction and heat.
PROPERTIES of SODIUM PETROLEUM SULFONATE:
Sodium Petroleum Sulfonate completely replaces similar products from Japan and India, and has been exported to Russia, the United States, Vietnam, and Japan.
The color is very good, the product batch is stable, and Sodium Petroleum Sulfonate is convenient for the subsequent use of customers.
Sodium Petroleum Sulfonate provides excellent emulsification, dispersion and corrosion inhibition properties in cutting oils, surface coatings, textile oils, water based lubricants and pigment wetting applications.
Sodium Petroleum Sulfonate is the emulsifier of choice for metalworking high water based cutting fluids and simple soluble oils.
Sodium Petroleum Sulfonate has the optimum balance of hydrophilic and lipophilic properties for the formulation of low oil, high water based fluids such as grinding oils or parts cleaners.
Sodium Petroleum Sulfonate generates significantly lower foam levels than other commercially available sulfonates.
Sodium Petroleum Sulfonate is unmatched in consistency and performance, reducing the need for emulsifier package adjustments due to quality variations.
Sodium Petroleum Sulfonate is compatible with a wide range of secondary emulsifiers, soaps, coupling agents, bactericides, antioxidants and corrosion inhibitors.
PRODUCTION of SODIUM PETROLEUM SULFONATE:
Sodium Petroleum Sulfonate Production is typically produced as a by-product of the refining process in which highly refined petroleum products (eg, white lubricating oil, mineral oil, and certain grades of trans oil) are produced.
These highly refined petroleum products are produced by treating refined petroleum distillates or raffinates with fuming sulfuric acid.
Fuming sulfuric acid reacts with the components of the oil to produce sulfonic acid.
Some of the sulfonic acids are oil soluble and some of the sulfonic acids are water soluble, thus forming a two-phase system.
The two phases separate into two layers, one of which is an oil layer containing an oil-soluble, reddish brown or mahogany sulfonic acid and the other a resinous water-soluble layer commonly referred to as an acidic sludge layer containing the material, unreacted sulfuric acid, and water-soluble or green sulfonic acid.
The layers are then separated and oil-soluble sulfonic acids are recovered from the oil layer, usually in the form of their sodium salts.
CAN SYNTHETIC SODIUM SULFONATE REPLACE NATURAL SODIUM PETROLEUM SULFONATE?
Yes, Synthetic sodium sulfonate has replaced petroleum sodium sulfonate.
Sodium petroleum sulfonate and synthetic sodium sulfonate are similar in nature, both have strong hydrophilicity and good surface activity.
They can both be used as anionic surfactants and are widely used in metalworking fluids, textile agents, cleaning agents, rust inhibitors, coatings, emulsions, ore flotation agents, printing inks and other fields.
There are still some differences between the two products, mainly in emulsification performance.
Users need to fine-adjust the formula system according to actual emulsification performance.
PHYSICAL and CHEMICAL PROPERTIES of SODIUM PETROLEUM SULFONATE:
CAS Number: 68608-26-4
EC Number (EINECS): 271-781-5
IUPAC / Registry Name: Petroleum, mixture of C10–47 saturated linear alkaryl derived cyclopentan/cyclohexane/benzene sulfonic acid sodium salts (varies by source)
Appearance: Brown to reddish brown liquid or viscous substance
State: Liquid/viscous — can also be formulated into concentrates or solids depending on product grade
Odor: Hydrocarbon-like or oily smell
Solubility: Soluble in water and miscible with many organic solvents and oil phases
pH (typical aqueous solution): Approximately mild to slightly alkaline (varies with concentration and formulation)
Density: Approx. 0.95–1.05 g/cm³ in typical commercial formulations
Viscosity: Liquid/viscous depending on grade and active matter content
Surface Activity: Strong anionic surfactant due to sulfonate group
Compatibility: Can be stable in acid/alkaline media and reasonably tolerant of hard water
Appearance: Dark Brown Viscous Liquid
Active Matter (as Sodium Petroleum Sulphonate, Wt.%): 60-62
Mineral Oil Content Wt.%: 35.0
Inorganic Salt (as Sodium Petroleum Sulphonate, Wt.%): 1.0
Water, Wt.%: 3.0
Alkalinity (as NaOH, Wt.%): 0.15 Max.
Acidity, Wt.%: Nil.
Average Molecular Weight: 480
Chemical Name: Sodium Petroleum Sulfonate
CAS Number: 68608-26-4 (common, but may vary by grade)
Appearance: Dark brown to reddish liquid or powder (depending on formulation)
Solubility: Soluble in water and petroleum oils
Odor: Hydrocarbon-like
Generalized chemical formula: R–SO₃Na
Where R: alkyl or alkyl-aryl hydrocarbon chains derived from petroleum
MOLECULAR WEIGHT: Not fixed (mixture)
Typical average molecular weight range: ≈ 300 – 500 g/mol
(The exact value depends on petroleum fraction, degree of sulfonation, and alkyl chain length.)
FIRST AID MEASURES of SODIUM PETROLEUM 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 PETROLEUM 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 PETROLEUM 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 PETROLEUM 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 PETROLEUM SULFONATE:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.
STABILITY and REACTIVITY of SODIUM PETROLEUM SULFONATE:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available
