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Agnique SPO 40 is a nonionic surfactant based on sorbitan esters (commonly sorbitan monooleate type), widely used as an emulsifier, wetting agent, and dispersing agent in agrochemical and industrial formulations.
Agnique SPO 40 is a product of BASF.
Agnique SPO 40 belongs to the class of sorbitan-based surfactants.
CAS Number: 57171-56-9
Molecular Formula: C126H230O18
Molecular Weight: 2033.1636
Synonyms: 57171-56-9, 2-[(2S,3R,4R,5R)-2,3,4,5,6-pentakis[2-[(Z)-octadec-9-enoyl]oxyethoxy]hexoxy]ethyl (Z)-octadec-9-enoate, LAIORVRDCREVSA-AMAZOXQHSA-N, Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-(9Z)-1-oxo-9-octadecenyloxy-, ether with D-glucitol (6:1);Poly(oxy-1,2-ethanediyl), alpha-(1-oxo-9-octadecenyl)-omega-hydroxy-, ether with D-glucitol (6:1);Ethoxylated sorbitol, hexaoleate;POLYETHOXYLATED SORBITOL HEXAOLEATE);sorbitol hexaoleate, ethoxylated;Poly(ethylene glycol) sorbitol hexaoleate ;Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-[[(9Z)-1-oxo-9-o ctadecen-1-yl]oxy]-, ether with D-glucitol (6:1), Sorbitanpolyoxyethyleneetherhexaoleate (Sorbitanpolyetherhexaoleate, Polyethoxylatedsorbitanhexaoleate, Polyoxyethylenesorbitanhexaoleate)
Agnique SPO 40 is derived from sorbitol (a sugar alcohol) esterified with fatty acids, typically oleic acid.
Agnique SPO 40 contains a hydrophilic sorbitan head and a hydrophobic fatty acid chain.
This amphiphilic structure enables surface activity.
Agnique SPO 40 appears as a viscous, amber to brown liquid.
Agnique SPO 40 is oil-soluble and has limited water solubility.
It has a mild characteristic odor.
Agnique SPO 40 exhibits nonionic surfactant behavior, meaning it is not affected by water hardness or pH.
Agnique SPO 40 reduces surface tension and improves spreading.
This makes it highly versatile in formulations.
Agnique SPO 40 functions as an emulsifier, particularly for water-in-oil (W/O) systems.
Agnique SPO 40 stabilizes mixtures of immiscible liquids.
This is important in agrochemical formulations.
Agnique SPO 40 also acts as a wetting and dispersing agent, improving distribution of active ingredients on surfaces.
It enhances penetration and coverage.
This increases formulation efficiency.
Agnique SPO 40 is generally chemically stable under normal conditions and compatible with many formulation components.
It performs well across a range of temperatures.
Proper storage ensures consistent performance.
Agnique SPO 40 is best described as a sorbitan-based nonionic surfactant used for emulsification, wetting, and dispersion, especially in agrochemical and industrial applications.
Agnique SPO 40 exhibits strong interfacial activity, allowing it to orient efficiently at oil–water boundaries.
This reduces interfacial tension and stabilizes dispersed phases.
It is especially effective in low-water systems.
Agnique SPO 40 provides excellent emulsification efficiency at relatively low concentrations.
Agnique SPO 40 can stabilize emulsions without the need for large surfactant amounts.
This is advantageous in formulation cost and performance.
Agnique SPO 40 contributes to improved droplet size control in emulsions.
It helps produce fine and uniform dispersed phases.
This enhances stability and performance.
Agnique SPO 40 can act as a co-emulsifier in complex surfactant systems, supporting primary emulsifiers.
This improves long-term emulsion stability.
It allows flexibility in formulation design.
Agnique SPO 40 shows good tolerance to electrolytes and varying pH conditions.
As a nonionic surfactant, it is less sensitive than ionic types.
This ensures consistent performance in different environments.
Density 1.03 g/mL at 25 °C(lit.)
refractive index n20/D1.471(lit.)
solubility propylene glycol: insoluble
Agnique SPO 40 belongs to the family of sorbitan esters (Span-type surfactants), which are widely used in water-in-oil emulsification systems.
These surfactants are characterized by low hydrophilic–lipophilic balance (HLB).
This makes them suitable for oil-continuous formulations.
The molecule contains a sorbitan backbone derived from sorbitol dehydration.
This structure provides multiple sites for esterification.
Agnique SPO 40 contributes to moderate polarity and surface activity.
The oleate fatty acid chain (C18:1) provides hydrophobic character.
Agnique SPO 40s unsaturation improves fluidity and flexibility.
This influences emulsification behavior.
Agnique SPO 40 typically exhibits a low HLB value (~4–6).
This favors stabilization of water-in-oil emulsions.
Agnique SPO 40 complements high-HLB surfactants in blends.
Agnique SPO 40 shows excellent compatibility with oils, hydrocarbons, and organic solvents.
Agnique SPO 40 dissolves well in nonpolar media.
This supports its use in oil-based systems.
It can be combined with ethoxylated surfactants (e.g., Tween-type) to form stable emulsifier systems.
Such combinations allow tuning of emulsion type and stability.
This is common in formulation design.
Agnique SPO 40 contributes to improved spreading and adhesion on hydrophobic surfaces, such as plant leaves.
It enhances coverage of active ingredients.
This improves efficiency in agrochemical applications.
Agnique SPO 40 may be susceptible to oxidation due to the unsaturated oleate chain.
Exposure to air and light can lead to degradation.
Stabilizers may be used to improve shelf life.
Agnique SPO 40 is a low-HLB, oil-soluble nonionic surfactant with strong W/O emulsifying and wetting properties, widely used in formulations requiring controlled dispersion and surface interaction.
Agnique SPO 40 can influence rheology and viscosity in oil-based systems.
It may slightly increase structure and stability.
Agnique SPO 40 enhances adhesion and retention of formulations on surfaces, particularly in agricultural applications.
It helps active ingredients remain on leaves or substrates.
Because of its amphiphilic structure, it supports dispersion of hydrophobic actives in liquid systems.
It helps maintain uniform distribution.
Agnique SPO 40 is a highly efficient, low-HLB nonionic surfactant that improves emulsification, spreading, adhesion, and formulation stability, particularly in oil-based and agrochemical systems.
Uses:
Agnique SPO 40 is widely used as an emulsifier in agrochemical formulations, especially for water-in-oil (W/O) emulsions.
Agnique SPO 40 helps disperse active ingredients in spray systems.
This improves application efficiency on crops.
In pesticide and herbicide formulations, it acts as a wetting and spreading agent.
Agnique SPO 40 enhances coverage and adhesion on plant surfaces.
This increases effectiveness of active compounds.
Agnique SPO 40 is used in emulsifiable concentrate (EC) formulations.
It stabilizes mixtures of oil-based actives in water upon dilution.
This ensures uniform distribution during use.
In industrial coatings and paints, it functions as a dispersing and emulsifying agent.
Agnique SPO 40 helps maintain uniform pigment distribution.
This improves coating consistency.
Agnique SPO 40 is applied in lubricants and oil-based formulations as a stabilizer and emulsifier.
Agnique SPO 40 helps maintain homogeneous mixtures.
This supports product performance.
In textile processing, it acts as a wetting agent for hydrophobic fibers.
Agnique SPO 40 improves penetration of processing chemicals.
This enhances efficiency.
Agnique SPO 40 is used in metalworking fluids to stabilize oil-in-water or water-in-oil systems.
It helps control emulsion stability.
This supports machining processes.
In cleaning formulations, particularly for oily contaminants, it aids in emulsification and removal.
Agnique SPO 40 improves interaction between oil and cleaning solution.
This enhances cleaning performance.
Agnique SPO 40 is also used in specialty chemical formulations where controlled emulsification and dispersion are required.
It helps maintain stability of complex systems.
This supports industrial applications.
Agnique SPO 40 is used wherever water-in-oil emulsification, wetting, spreading, and dispersion of hydrophobic substances are required, especially in agrochemical, industrial, and oil-based formulations.
Agnique SPO 40 is used in adjuvant systems for agricultural sprays to enhance performance of active ingredients.
Agnique SPO 40 improves spreading, adhesion, and retention on plant surfaces.
In seed treatment formulations, it helps distribute protective agents evenly over seeds.
Agnique SPO 40 ensures uniform coating.
This improves effectiveness of seed protection.
Agnique SPO 40 is applied in oil-based cosmetic and personal-care formulations as a W/O emulsifier.
It helps stabilize creams and lotions with high oil content.
This improves texture and stability.
In fuel additives and oil treatment systems, it acts as an emulsifier for water–oil mixtures.
Agnique SPO 40 helps control phase behavior.
This supports formulation stability.
Agnique SPO 40 is used in wax emulsions and polishes.
It helps disperse waxes uniformly in liquid systems.
This improves application and finish.
In leather processing, it acts as a wetting and emulsifying agent.
It improves penetration of oils and treatments.
This enhances material quality.
Agnique SPO 40 is applied in construction chemicals, such as waterproofing agents and coatings.
It helps stabilize hydrophobic components.
This improves durability and performance.
In anti-foaming or foam-control systems, it can help modify foam structure.
Agnique SPO 40 influences bubble stability and collapse behavior.
This supports process control.
Agnique SPO 40 is also used in laboratory and formulation development work as a model low-HLB surfactant.
It helps design emulsifier systems.
Agnique SPO 40 is used wherever low-HLB emulsification, improved spreading, adhesion, and stabilization of oil-based systems are required, particularly in agrochemical, industrial, and specialty formulations.
Safety Profile:
Agnique SPO 40 generally presents low to moderate hazard potential, typical of nonionic surfactants, but risks depend on concentration and exposure conditions.
It is considered relatively mild compared to many ionic surfactants.
Standard handling precautions are recommended.
Skin contact is usually low risk, but prolonged exposure to concentrated material may cause mild irritation or dryness.
Sensitive individuals may experience slight redness.
Protective gloves are recommended during bulk handling.
Eye contact may cause mild to moderate irritation.
Symptoms can include redness, watering, and discomfort.
Eyes should be rinsed thoroughly with water if exposure occurs.
Inhalation risk is generally low, as the product is a viscous liquid.
However, aerosols or mists may cause respiratory irritation.
Adequate ventilation should be maintained.
Ingestion is considered low toxicity, but large amounts may cause gastrointestinal discomfort.
Agnique SPO 40 is not intended for oral consumption.
Medical advice should be sought if necessary.
Agnique SPO 40 is not highly flammable, but it can burn under strong heat.
Thermal decomposition may produce carbon oxides and other organic fumes.
Standard fire safety precautions should be followed.
