Lansurf CO40
Castor Oil Ethoxylate
INCI Name: PEG-40 Hydrogenated Castor Oil
Lansurf CO40 is a high‑performance nonionic surfactant produced by the ethoxylation of castor oil, incorporating 40 moles of ethylene oxide. It is supplied as a clear yellow liquid, fully soluble in water, and is widely used in industrial, agricultural, and textile formulations due to its excellent emulsification, wetting, detergency, and lubricity. It also
benefits from low toxicity and food‑contact approval, making it suitable for sensitive applications.
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Key Features
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Excellent emulsification and wetting for stable formulations and effective surface coverage.
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Low toxicity with food‑contact approval, making it suitable for sensitive applications.
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High lubricity and versatile functionality across textiles, agrochemicals, and industrial systems.
Applications
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Textile Industry
- Used as a fiber lubricant with good detergency in textile processing and finishing.
Agrochemical Formulations
- Functions as a co‑emulsifier in balance‑pair emulsifier systems for EC and EW pesticide formulations.
- Provides excellent wetting and stable emulsification on plant surfaces.
Phenolic Foam Production
- Acts as a foaming agent in phenolic foam systems, helping generate uniform cell structure.
Industrial & Chemical Processing
- Used as a surfactant, foaming agent, lubricant, and emulsifier across various chemical manufacturing and material‑processing applications.​
Specification
Appearance at 25°C
Clear yellow liquid free from foreign matter
pH (10% aqueous)
5.0 - 7.0
Saponification value mg.KOH/g
56.0 - 68.0
Typical Properties
Composition
Castor oil ethoxylate
Solids content %
100
Viscosity at 25°C (cP)
700
Pour point °C
11
CAS number
61791-12-6
Moles of EO
40
Specific gravity at 20°C
1.07
Flash point open cup °C
>100
Odour
Characteristic
HLB value
13.5
Solubility in water
Soluble
Wetting draves 0.5g/l

