Description

Tween 60 is a non-ionic surfactant belonging to the polysorbate family, specifically polyoxyethylene (20) sorbitan monostearate. This versatile emulsifier and solubilizer is crucial for creating stable, uniform mixtures of oil and water phases in complex formulations. It is an essential ingredient for manufacturers in the pharmaceutical, food & beverage, and personal care industries seeking reliable performance and regulatory compliance.

Application

• Pharmaceutical Formulations: Used as an emulsifier and solubilizing agent in creams, ointments, and oral suspensions to enhance drug bioavailability.
• Food & Beverage Industry: Functions as an emulsifier in baked goods, dairy products (e.g., ice cream), and edible oils to improve texture and shelf life.
• Cosmetics & Personal Care: Key component in lotions, creams, and hair care products for stabilizing emulsions and improving skin feel.
• Industrial Applications: Acts as a dispersant, lubricant, and anti-static agent in textile processing, plastics, and agrochemical formulations.
• Laboratory & Biotechnology: Employed in cell culture media and diagnostic reagents as a wetting and stabilizing agent.

Basic Information

Product Name	Tween 60
CAS No.	9005-67-8
Molecular Formula	C64H126O26
Molecular Weight	~1311.7 g/mol
Synonyms	Polysorbate 60; Polyoxyethylene (20) sorbitan monostearate; POE (20) sorbitan monostearate; Sorbitan, monooctadecanoate, poly(oxy-1,2-ethanediyl) derivs.; Tween® 60; E435
EINECS	500-019-9

Quality Control

Our Tween 60 is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP-NF and EP, as well as FCC for food applications. Each batch undergoes rigorous analytical testing to ensure identity, purity, and performance specifications are met. A comprehensive Certificate of Analysis (COA) is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept in its original packaging to minimize exposure to atmospheric humidity. For long-term storage, consider using desiccants or an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	Yellowish viscous liquid to soft waxy solid
Identification (IR)	Conforms
Assay (Saponification Value)	45 - 55 mg KOH/g
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	81 - 96 mg KOH/g
Water Content (KF)	≤ 3.0 %
Residue on Ignition (Sulfated Ash)	≤ 0.25 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.