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E 436 Polyoxyethylene Sorbitan Tristearate is a cream to light yellow-colored organic compound in a solid, waxy, or flake form at room temperature, obtained by the reaction of sorbitan esters ethoxylated with stearic acid, used as an emulsifier, solubilizer, and surfactant in food, pharmaceutical, cosmetic, and industrial formulations.
E 436 Polyoxyethylene Sorbitan Tristearate is a non-ionic surfactant raw material having a medium hydrophilic-lipophilic balance (HLB), known by the code E 436 in food additive coding systems and commercially as Polysorbate 65.
E 436 Polyoxyethylene Sorbitan Tristearate undertakes a critical role in stabilizing oil-in-water (O/W) emulsions, ensuring the homogeneous distribution of oil-based components in aqueous media, and controlling crystallization while preventing phase separation in food and cosmetic systems.
E 436 Polyoxyethylene Sorbitan Tristearate 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 436 Polyoxyethylene Sorbitan Tristearate molecules establish a stable bridge between water and oil phases thanks to their hydrophilic head portion formed by ethoxylated polyoxyethylene chains and the strong lipophilic tail structure derived from three stearic acid chains.
E 436 Polyoxyethylene Sorbitan Tristearate-containing food, medical, and personal care products acquire balanced surface tension, high emulsion stability, velvety texture, and long shelf life.
E 436 Polyoxyethylene Sorbitan Tristearate is widely preferred at industrial standards, particularly to prevent fat bloom in chocolate coatings, provide crystallization control in bakery products, and maintain structural stability in margarines.
E 436 Polyoxyethylene Sorbitan Tristearate is a reliable emulsifier and crystal-regulating agent that maintains its structural stability even across wide temperature ranges and at varying electrolyte concentrations.
E 436 Polyoxyethylene Sorbitan Tristearate 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 436 POLYOXYETHYLENE SORBITAN TRISTEARATE?
E 436 Polyoxyethylene Sorbitan Tristearate is a non-ionic surfactant known in the food and chemical industry under the names E 436 Polyoxyethylene Sorbitan Tristearate, Polysorbate 65, Polyoxyethylene (20) Sorbitan Tristearate, or PEG-20 Sorbitan Tristearate.
E 436 Polyoxyethylene Sorbitan Tristearate is commercially presented to the market in a cream to light yellow-colored, solid, waxy particle or flake form with a distinct light characteristic odor.
E 436 Polyoxyethylene Sorbitan Tristearate quality is determined according to specific control parameters such as purity degree, hydroxyl value, saponification value, acid value, water amount, and stearic acid ester distribution.
E 436 Polyoxyethylene Sorbitan Tristearate exhibits superior performance, particularly in emulsion and dispersion systems containing solid fats, thanks to its HLB value of approximately 10.5.
E 436 Polyoxyethylene Sorbitan Tristearate also finds a wide usage area as a viscosity and consistency regulator in pharmaceutical creams, ointments, and special cosmetic formulations.
E 436 Polyoxyethylene Sorbitan Tristearate keeps the growth of fat crystals under control thanks to the multiple ester bonds in its molecular structure, preventing the deterioration of the product structure.
COMMON PRODUCT AND CHEMICAL NAMES:
E 436 Polyoxyethylene Sorbitan Tristearate
Polyoxyethylene (20) Sorbitan Tristearate
Polysorbate 65
PEG-20 Sorbitan Tristearate
Polioksietilen (20) Sorbitan Tristearat
Polisorbat 65
E 436
Sorbitan Tristearate Ethoxylated
CAS NO, EC / EINECS NO AND CHEMICAL IDENTIFICATION
Product name: E 436 Polyoxyethylene Sorbitan Tristearate
Food Code: E 436
Chemical name: Polyoxyethylene (20) sorbitan tristearate
Molecular formula: C₁₀₀H₁₉₄O₂₈ (Average polyethoxylated structure)
Molecular weight: Approximately 1865 g/mol (Average)
CAS No: 9005-83-8
EC / EINECS No: 500-022-6
Chemical class: Non-Ionic Surfactant / Ethoxylated Sorbitan Fatty Acid Ester
Main functions: Food emulsifier, crystallization inhibitor, foam stabilizer, wetting agent, dispersant, consistency regulator
E 436 Polyoxyethylene Sorbitan Tristearate is a complex non-ionic structure obtained by ethoxylating sorbitol-derived sorbitan esters with approximately 20 moles of ethylene oxide and esterifying them with three moles of stearic acid.
E 436 Polyoxyethylene Sorbitan Tristearate has CAS No 9005-83-8 and EC No 500-022-6 registered in international food and chemical inventories.
E 436 Polyoxyethylene Sorbitan Tristearate purity degree, acidity, and heavy metal limits in food and pharmaceutical grades are strictly inspected according to international standards.
PHYSICAL AND CHEMICAL PROPERTIES
E 436 Polyoxyethylene Sorbitan Tristearate is generally a cream to light yellow-colored solid waxy substance.
Physical appearance: Cream to light yellow-colored solid, waxy flake or granule
HLB Value: Approximately 10.5 (Medium hydrophilic)
Density: Approximately 1.05 - 1.09 g/cm³ at 25 °C
Solubility in water: Disperses in hot water; soluble in ethanol and some organic solvents; disperses in mineral and vegetable oils
Flash point: > 150 °C (Closed cup)
Melting point: Approximately 29 °C - 33 °C
pH (5% aqueous dispersion): Approximately 5.5 - 7.5 (Neutral character)
HOW DOES E 436 POLYOXYETHYLENE SORBITAN TRISTEARATE WORK AT THE MOLECULAR LEVEL?
E 436 Polyoxyethylene Sorbitan Tristearate forms hydrogen bonds with water molecules through the polyoxyethylene chains in its structure.
E 436 Polyoxyethylene Sorbitan Tristearate molecules attach to the surface of solid fat crystals with their triple saturated stearic acid tail structure, modulating crystal size and preventing fat bloom.
E 436 Polyoxyethylene Sorbitan Tristearate presence prevents undesired phase separations and texture hardening in systems such as margarine and chocolate by balancing interfacial tension between phases.
E 436 Polyoxyethylene Sorbitan Tristearate preserves emulsion and dispersion 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 (chocolates, cocoa coatings, margarines, vegetable oil-based products, bakery products, and confections)
Pharmaceutical and medical preparations (solid fat-based ointments, suspensions, and special cream formulations)
Cosmetic and personal care sector (stick products, waxy creams, hair care and body lotions)
Biochemistry and laboratory applications
Agricultural chemicals (special pesticide dispersions)
Industrial special lubrication and wax formulations
THINGS TO CONSIDER DURING USE
E 436 Polyoxyethylene Sorbitan Tristearate 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 436 Polyoxyethylene Sorbitan Tristearate should be protected from direct sunlight during storage and kept tightly closed in its original packaging in cool, dry, and well-ventilated environments.
E 436 Polyoxyethylene Sorbitan Tristearate inhalation of its dust or waxy structure should be avoided, and in case of direct contact with the eyes, it should be washed with plenty of water.
TECHNICAL SUMMARY
E 436 Polyoxyethylene Sorbitan Tristearate is a fundamental surfactant safely used in the chocolate and margarine industry with its ability to provide crystal control, high emulsifying power, and non-ionic structure.
E 436 Polyoxyethylene Sorbitan Tristearate is one of the indispensable components of modern industrial chemistry with its capability to optimize phase stability and textural performance in complex fat systems.
