• Sorbitan Monooleate CAS 1338-43-8
  • Sorbitan Monooleate CAS 1338-43-8

Sorbitan Monooleate CAS 1338-43-8

Sorbitan Monooleate (Span 80) is a nonionic sorbitan fatty acid ester used as an industrial ingredient in formulated chemical systems. Identified by CAS No. 1338-43-8, this material functions through its lipophilic ester structure to promote interfacial stabilization and phase dispersion in low‑HLB systems. It is commonly applied in emulsifier formulations where water‑in‑oil emulsification and formulation stability are required at the industrial processing level. Supply is available with competitive factory pricing, supports customized specifications, and includes MSDS, TDS, COA documentation for bulk supply.

  • CAS: 1338-43-8
  • Synonyms: Sorbitan Monooleate, Span 80, Sorbitan Oleate, Monooleate of Sorbitan
  • Einecs: 215-665-4
  • Molecular Formula: C₂₄H₄₄O₆
  • Grade: 99%
  • Package: 200kg iron drum
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Product Description

Product Overview

Sorbitan Monooleate is supplied as a lipophilic nonionic surfactant and emulsifier for formulated systems requiring water-in-oil emulsification, wetting, and phase stabilization. It is suitable for use in selected chemical processing, coating, agrochemical, and personal care formulations where low-HLB functionality is required.

This product is commonly applied where oily phases need to be dispersed or stabilized with controlled emulsification behavior. It may also be used in combination with higher-HLB emulsifiers to balance system performance in blended surfactant packages.

Product Information / Specifications
Product Name Sorbitan Monooleate
Common Name Span 80
CAS No. 1338-43-8
EINECS No. 215-665-4
Product Identity Nonionic emulsifier / sorbitan fatty acid ester
Typical Role W/O emulsifier, dispersing aid, wetting agent, stabilizer
Supply Form Viscous liquid
Supply Notes Technical documents such as COA, TDS, and SDS may be provided according to the supplied grade
Physical & Chemical Properties
Appearance Amber to brownish-yellow viscous liquid
Odor Mild fatty odor
Molecular Formula C24H44O6
Molecular Weight Approx. 428.6
Density Approx. 0.994 g/mL at 20°C
Refractive Index Approx. 1.48 at 20°C
Solubility Insoluble in water; soluble in ethanol, isopropanol, ether, and selected organic solvents
Applications
  • Water-in-oil emulsifier systems for industrial and specialty chemical formulations
  • Cosmetic and personal care emulsions where lipophilic emulsification is required
  • Agrochemical formulations as an emulsifying and dispersing aid
  • Coatings, textile, and process chemical systems requiring wetting and phase stabilization
  • Blended surfactant packages designed to adjust HLB balance and emulsion behavior
Packaging

Standard packaging may include 200 kg iron drums.

Packaging arrangement may vary according to the supplied grade and order requirements.

Storage Conditions

Store in a cool, dry, and well-ventilated area in tightly closed original packaging. Protect from excessive heat, direct sunlight, and moisture. Avoid contact with strong oxidizing agents during storage and handling.

Safety Precautions

Handle according to standard chemical safety procedures. Avoid direct contact with eyes, skin, and clothing, and use appropriate ventilation during transfer or formulation operations.

Suitable personal protective equipment such as gloves, protective eyewear, and protective clothing should be used. Refer to the latest SDS before storage, handling, transport, or production use.

FAQ
1. What is Sorbitan Monooleate used for?
Sorbitan Monooleate is used as a nonionic emulsifier and dispersing aid in water-in-oil systems and other formulation processes requiring interfacial stabilization.
2. Are Span 80 and Sorbitan Monooleate the same product?
Yes. Span 80 is a common trade name for Sorbitan Monooleate under CAS 1338-43-8.
3. Is this product a nonionic emulsifier?
Yes. It is supplied as a nonionic sorbitan ester emulsifier commonly selected for low-HLB formulation systems.
4. What type of emulsion system is Span 80 typically used in?
It is commonly used in water-in-oil emulsions and in blended emulsifier systems where lipophilic balance is required.
5. Can Sorbitan Monooleate be used in cosmetic or industrial formulations?
Yes. It may be used in cosmetic, agrochemical, coating, and specialty industrial formulations, subject to formulation design and local regulatory requirements.
6. What packaging is commonly available?
Standard packaging may include 200 kg iron drums, with packaging details depending on grade and order arrangement.
7. What technical documents may be available?
Documents such as COA, TDS, and SDS may be provided according to the supplied grade and shipment arrangement.
8. How should Sorbitan Monooleate be stored?
It should be stored sealed in a cool, dry, and well-ventilated place away from excessive heat, direct sunlight, and incompatible oxidizing materials.

FAQ - Technical & Supply Chain

Documents

Documents and Product Support

For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

  • COA for batch-based quality reference
  • TDS for key physical and chemical information
  • SDS / MSDS for handling, storage, and safety reference
  • Packing information for sample, trial, and bulk orders
  • Technical communication based on application and specification requirements
Quotation

Information to Confirm Before Quotation

Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

  • Product name and CAS number
  • Application or intended end use
  • Required purity, grade, or specification
  • Sample quantity, trial order, or bulk demand
  • Preferred packing form or net weight
  • Destination country or port
  • Required documents or compliance expectations
Storage & Handling

Packaging, Storage, and Handling Notes

Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

Supply Support

Sample, Bulk Order and Repeat Supply Support

Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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