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PEG-20 Sorbitan Monopalmitate is a yellowish to cream-colored organic compound in a viscous liquid or soft waxy form at room temperature, obtained by the reaction of sorbitan esters ethoxylated with palmitic acid, used as an emulsifier, solubilizer, and surfactant in food, pharmaceutical, cosmetic, and industrial formulations.
E 434 Polyoxyethylene Sorbitan Monopalmitate is a non-ionic surfactant raw material having a hydrophilic-lipophilic balance (HLB), known by the code E 434 in food additive coding systems and commercially as Polysorbate 40.
E 434 Polyoxyethylene Sorbitan Monopalmitate undertakes a critical role in stabilizing oil-in-water (O/W) emulsions, ensuring the homogeneous distribution of oil-based components in aqueous media, and preventing phase separation in food and cosmetic systems.
PEG-20 Sorbitan Monopalmitate is a functional component added to formulations in order to increase storage stability, preserve structural integrity, and facilitate processability by lowering the interfacial tension between immiscible phases.
E 434 Polyoxyethylene Sorbitan Monopalmitate molecules establish a strong and stable bridge between water and oil phases thanks to their hydrophilic head portion formed by ethoxylated polyoxyethylene chains and the saturated lipophilic tail structure derived from palmitic acid.
E 434 Polyoxyethylene Sorbitan Monopalmitate-containing food, medical, and personal care products acquire low surface tension, high emulsion stability, smooth fluidity, and long shelf life.
Polyoxyethylene (20) Sorbitan Monopalmitate is widely preferred at industrial standards, particularly to provide volume and texture control in bakery products, whipped creams, and vegetable oil-based desserts, and to solubilize vitamins and volatile flavors in aqueous systems.
E 434 Polyoxyethylene Sorbitan Monopalmitate is a reliable emulsifier and wetting agent that maintains its structural stability even across wide temperature ranges and at varying electrolyte concentrations.
E 434 Polyoxyethylene Sorbitan Monopalmitate is produced at high purity standards and is one of the sought-after polyoxyethylene sorbitan ester derivatives in the global food, pharmaceutical, and chemical market.
WHAT IS E 434 POLYOXYETHYLENE SORBITAN MONOPALMITATE?
Polyoxyethylene (20) Sorbitan Monopalmitate is a non-ionic surfactant known in the food and chemical industry under the names E 434 Polyoxyethylene Sorbitan Monopalmitate, Polysorbate 40, Polyoxyethylene (20) Sorbitan Monopalmitate, or PEG-20 Sorbitan Monopalmitate.
E 434 Polyoxyethylene Sorbitan Monopalmitate is commercially presented to the market in a yellowish, clear liquid or soft waxy consistency form with a distinct light characteristic odor.
PEG-20 Sorbitan Monopalmitate quality is determined according to specific control parameters such as purity degree, hydroxyl value, saponification value, acid value, water amount, and palmitic acid ester distribution.
Polisorbat 40 exhibits superior performance, particularly in emulsion systems with a high water ratio, thanks to its HLB value of approximately 15.6.
E 434 Polyoxyethylene Sorbitan Monopalmitate also finds a wide usage area as a solubilizer in pharmaceutical suspensions, vitamin preparations, and cosmetic creams.
Polisorbat 40 increases the sedimentation resistance of dispersion systems thanks to the flexible ethylene glycol chains in its molecular structure.
COMMON PRODUCT AND CHEMICAL NAMES:
E 434 Polyoxyethylene Sorbitan Monopalmitate
Polyoxyethylene (20) Sorbitan Monopalmitate
Polysorbate 40
PEG-20 Sorbitan Monopalmitate
Polioksietilen (20) Sorbitan Monopalmitat
Polisorbat 40
E 434
Sorbitan Monopalmitate Ethoxylated
CAS NO, EC / EINECS NO AND CHEMICAL IDENTIFICATION
Product name: E 434 Polyoxyethylene Sorbitan Monopalmitate
Food Code: E 434
Chemical name: Polyoxyethylene (20) sorbitan monopalmitate
Molecular formula: C₆₂H₁₂₀O₂₆ (Average polyethoxylated structure)
Molecular weight: Approximately 1283 g/mol (Average)
CAS No: 9005-66-7
EC / EINECS No: 500-020-4
Chemical class: Non-Ionic Surfactant / Ethoxylated Sorbitan Fatty Acid Ester
Main functions: Food emulsifier, solubilizer, foam stabilizer, wetting agent, dispersant
Sorbitan Monopalmitate Ethoxylated Monopalmitate is a complex non-ionic structure obtained by ethoxylating sorbitol-derived sorbitan esters with approximately 20 moles of ethylene oxide and esterifying them with palmitic acid.
E 434 Polyoxyethylene Sorbitan Monopalmitate has CAS No 9005-66-7 and EC No 500-020-4 registered in international food and chemical inventories.
Sorbitan Monopalmitate Ethoxylated purity degree, acidity, and heavy metal limits in food and pharmaceutical grades are inspected according to international standards.
PHYSICAL AND CHEMICAL PROPERTIES
E 434 Polyoxyethylene Sorbitan Monopalmitate is generally a yellowish-colored clear liquid or soft waxy substance.
Physical appearance: Yellowish clear viscous liquid or soft waxy structure
HLB Value: Approximately 15.6 (Highly hydrophilic)
Density: Approximately 1.06 - 1.09 g/cm³ at 20 °C
Solubility in water: Fully soluble in water, ethanol, and methanol; has limited solubility in mineral oils
Flash point: > 150 °C (Closed cup)
Viscosity: Medium viscosity fluid at 25 °C
pH (5% aqueous solution): Approximately 6.0 - 7.5 (Neutral character)
HOW DOES E 434 POLYOXYETHYLENE SORBITAN MONOPALMITATE WORK AT THE MOLECULAR LEVEL?
E 434 Polyoxyethylene Sorbitan Monopalmitate forms strong hydrogen bonds with water molecules through the polyoxyethylene chains in its structure.
Polisorbat 40 molecules surround hydrophobic oil droplets and active components with their saturated palmitic acid tail structure to form stable micelles.
E 434 Polyoxyethylene Sorbitan Monopalmitate presence ensures that the oil phase is equally distributed in the aqueous matrix by minimizing interfacial tension between phases.
Sorbitan Monopalmitate Ethoxylated Monopalmitate preserves emulsion balance without being adversely affected by hard water and salt ions in the medium thanks to its non-ionic structure.
WHICH INDUSTRIES IS IT USED IN?
Food industry (bakery products, whipped creams, sauces, beverages)
Pharmaceutical and medical preparations (vitamin syrups, oral drops, suspensions)
Cosmetic and personal care sector (creams, lotions, hair care products)
Biochemistry and laboratory applications
Agricultural chemicals (pesticide liquid emulsions)
Industrial cleaning and specialty chemical formulations
THINGS TO CONSIDER DURING USE
Sorbitan Monopalmitate Ethoxylated maximum usage limits stipulated in relevant national and international regulations (TGK, EFSA, FDA) must be strictly complied with when used in food and drug formulations.
E 434 Polyoxyethylene Sorbitan Monopalmitate should be protected from direct sunlight during storage and kept tightly closed in its original packaging in cool, dry, and well-ventilated environments.
E 434 Polyoxyethylene Sorbitan Monopalmitate protective goggles should be worn during work as direct contact with the eyes may cause mild irritation, and in case of contact, Polisorbat 40 should be washed with plenty of water.
TECHNICAL SUMMARY
Sorbitan Monopalmitate Ethoxylated is a fundamental surfactant safely used in a wide field from food to pharmacy with its high emulsifying power, excellent solubilizing capacity, and non-ionic structure.
E 434 is one of the indispensable bridge components of modern industrial chemistry with its ability to provide phase stability in complex formulations.
ADVANTAGES COMPARED WITH ALTERNATIVE EMULSIFIERS
E 434 Polyoxyethylene Sorbitan Monopalmitate (Polysorbate 40) offers effective emulsification in oil-in-water (O/W) systems due to its high hydrophilic-lipophilic balance (HLB) value of approximately 15.6.
Compared with more lipophilic emulsifiers, Polisorbat 40 is generally better suited to formulations requiring a high proportion of water and the uniform distribution of oil-based ingredients in aqueous media.
Its non-ionic structure provides compatibility with a wide range of formulation ingredients and makes Polisorbat 40 less sensitive to changes in water hardness and electrolyte concentration than many ionic surfactants.
Polysorbate 40 can also support the solubilization and dispersion of selected oils, flavors, and active ingredients, making Polisorbat 40 useful in food, pharmaceutical, cosmetic, and industrial applications.
Its emulsifying and wetting properties can help improve formulation consistency, texture, and physical stability when the product is appropriately formulated.
LIMITATIONS COMPARED WITH ALTERNATIVES
The performance of E 434 Polyoxyethylene Sorbitan Monopalmitate depends on the oil phase, ingredient concentrations, processing conditions, and the properties of the complete formulation.
Its relatively high HLB value makes Polisorbat 40 more suitable for many oil-in-water systems than for water-in-oil emulsions; other emulsifiers may be more appropriate for formulations requiring a lower HLB value.
Polysorbate 40 may not provide sufficient stability when used alone in every formulation, and Polisorbat 40 may need to be combined with other emulsifiers or stabilizers.
The required dosage and compatibility should be determined through formulation testing, as excessive use may affect foaming, texture, taste, or other product characteristics.
Its suitability for food, pharmaceutical, cosmetic, or industrial applications depends on the grade supplied and the applicable regulatory requirements.
Technical properties such as appearance, viscosity, solubility, and storage stability should be confirmed using the supplier's specification and the relevant product grade.
E 434 Polyoxyethylene Sorbitan Monopalmitate (Polysorbate 40) offers effective emulsification in oil-in-water (O/W) systems due to its high hydrophilic-lipophilic balance (HLB) value of approximately 15.6.
Compared with more lipophilic emulsifiers, Polisorbat 40 is generally better suited to formulations requiring a high proportion of water and the uniform distribution of oil-based ingredients in aqueous media.
Its non-ionic structure provides compatibility with a wide range of formulation ingredients and makes Polisorbat 40 less sensitive to changes in water hardness and electrolyte concentration than many ionic surfactants.
Polysorbate 40 can also support the solubilization and dispersion of selected oils, flavors, and active ingredients, making Polisorbat 40 useful in food, pharmaceutical, cosmetic, and industrial applications.
Its emulsifying and wetting properties can help improve formulation consistency, texture, and physical stability when the product is appropriately formulated.
LIMITATIONS COMPARED WITH ALTERNATIVES
The performance of E 434 Polyoxyethylene Sorbitan Monopalmitate depends on the oil phase, ingredient concentrations, processing conditions, and the properties of the complete formulation.
Its relatively high HLB value makes Polisorbat 40 more suitable for many oil-in-water systems than for water-in-oil emulsions; other emulsifiers may be more appropriate for formulations requiring a lower HLB value.
Polysorbate 40 may not provide sufficient stability when used alone in every formulation, and Polisorbat 40 may need to be combined with other emulsifiers or stabilizers.
The required dosage and compatibility should be determined through formulation testing, as excessive use may affect foaming, texture, taste, or other product characteristics.
Its suitability for food, pharmaceutical, cosmetic, or industrial applications depends on the grade supplied and the applicable regulatory requirements.
Technical properties such as appearance, viscosity, solubility, and storage stability should be confirmed using the supplier's specification and the relevant product grade.
CONTACT ATAMAN KIMYA
For further information, technical specifications, product quality details, and supply inquiries regarding E 434 Polyoxyethylene Sorbitan Monopalmitate (Polysorbate 40), please contact Ataman Kimya.
