Description
Specifications Table
Product Name – Polyoxyethylene (20) sorbitan monooleate BAKER™
Quantity/Pack Size – 500 ml
Form – Liquid
Grade – Laboratory
Application – Emulsifier, solubilizer, detergent
Product Overview
Polyoxyethylene (20) sorbitan monooleate, commonly known as polysorbate 80 or Tween 80, is a non-ionic surfactant widely used in laboratory and research settings due to its excellent emulsifying and solubilizing properties. This BAKER™ grade product features a hydrophilic-lipophilic balance (HLB) value of 15.0, making it particularly effective for creating oil-in-water emulsions and stabilizing aqueous formulations. The liquid form ensures easy handling and precise dosing in experimental protocols. Its molecular structure combines sorbitan monooleate with approximately 20 ethylene oxide units, providing both hydrophobic and hydrophilic characteristics that enhance its versatility. The product maintains consistent performance across various pH ranges and temperatures, though optimal results are typically achieved in neutral to slightly alkaline conditions. As a laboratory-grade surfactant, it undergoes rigorous quality control to ensure minimal impurities and reliable batch-to-batch consistency. The 500 ml packaging offers an ideal balance between sufficient quantity for repeated use and manageable storage requirements. This surfactant finds particular utility in applications requiring gentle yet effective solubilization of hydrophobic compounds, making it a valuable addition to any laboratory’s reagent inventory.
FAQs
1. What is the chemical structure of Polyoxyethylene (20) sorbitan monooleate?
It consists of sorbitan monooleate esterified with approximately 20 ethylene oxide units, creating a non-ionic surfactant with both hydrophilic polyethylene oxide chains and hydrophobic oleic acid moieties.
2. How does this compare with other polysorbate variants?
Polysorbate 80 (this product) has a higher HLB value than polysorbate 60 or 65, making it more water-soluble and better suited for oil-in-water emulsions compared to water-in-oil emulsions.
3. What is the recommended storage temperature?
Store at room temperature (15-25°C) in a tightly sealed container, protected from light and moisture to maintain stability and prevent degradation.
4. Is this product compatible with ionic surfactants?
While generally compatible, mixing with ionic surfactants may affect the critical micelle concentration and overall surfactant properties, potentially altering performance in specific applications.
5. What quality control measures are applied to this BAKER™ grade product?
The product undergoes rigorous testing for appearance, solubility, acid value, saponification value, and heavy metal content to ensure laboratory-grade purity and consistency.
