Question

What are the main characteristics of Hydrogenated Castor Oil Polyoxyethylene Ether HEL-40?

Answer
2026-05-17 官方文档 氢化蓖麻油聚氧乙烯醚HEL-40

Hydrogenated Castor Oil Polyoxyethylene Ether HEL-40 is a nonionic surfactant prepared by ethoxylation of natural hydrogenated castor oil, featuring five core characteristics: efficient solubilization, excellent emulsification, broad compatibility, acid-alkali resistance and hard water tolerance, as well as mildness and low irritation.

Detailed Description

HEL-40 is produced using natural hydrogenated castor oil as the starting material, introducing polyoxyethylene chains through an ethoxylation process. The product appears as a pale yellow paste to viscous liquid. As a versatile nonionic surfactant, it exhibits interfacial activity in aqueous systems without dissociation, thus demonstrating good tolerance to acidic, alkaline, and hard water conditions, making it suitable for a wide range of applications.

Its most prominent functional highlight is its "efficient solubilization" capability — it can uniformly and stably disperse hydrophobic components such as fragrances, essential oils, and oil-soluble active substances into aqueous systems, producing transparent and clear products. This is irreplaceable in formulations such as transparent aqueous cosmetics and makeup removers. Meanwhile, as a typical oil-in-water emulsifier, HEL-40 can form fine and stable emulsions, significantly improving the texture and skin feel comfort of the formulation.

In addition, HEL-40 exhibits good compatibility with various anionic, cationic, and amphoteric surfactants, offering high flexibility in formulation design. Its raw material is derived from natural castor oil, and after modification, it still maintains excellent skin compatibility. Under normal usage conditions, it causes no significant irritation to the skin and is classified as practically non-toxic. It is a green surfactant that combines functionality and safety.

Technical Parameters

ParameterDescription
Product NameHydrogenated Castor Oil Polyoxyethylene Ether HEL-40
CAS Number61788-85-0
Product TypeNonionic Surfactant
AppearancePale yellow paste to viscous liquid
Raw Material SourceNatural hydrogenated castor oil
HLB ValueNot available
Cloud PointNot available
pH Tolerance RangeWide (specific value not available)
Acute Oral Toxicity LD50 (Rat)> 5000 mg/kg (Practically non-toxic level)
Acute Dermal Toxicity LD50 (Rabbit)> 2000 mg/kg
BiodegradabilityBiodegradable, compliant with OECD standards

Application Recommendations

Based on the five core characteristics of HEL-40, it is recommended for use in the following scenarios:

  • Cosmetics and Personal Care Products: As a mild O/W emulsifier and efficient solubilizer, widely used in creams, lotions, makeup removers, facial cleansers, body washes, and transparent aqueous systems, especially suitable for formulations requiring solubilization of fragrances and essential oils.
  • Textile Industry: Used as a leveling agent, softener, and antistatic finishing agent to improve the processing uniformity and hand feel of synthetic fibers and their blended fabrics.
  • Metalworking Fluids: Serves as a dual-function component for emulsification and lubrication, suitable for formulating semi-synthetic and emulsified cutting fluids and grinding fluids.
  • Hard Surface Cleaning: Used in kitchen heavy-duty grease cleaners and general-purpose multi-purpose cleaners to enhance detergency and wetting-spreading properties.
  • Pesticide Formulations: Acts as an emulsifying dispersant to improve the dispersion stability of active pesticide ingredients in liquid formulations such as emulsifiable concentrates, microemulsions, and emulsions in water.

Precautions

  • Recommended storage temperature is 5°C to 35°C. Avoid freezing or overheating. Store in a cool, dry, and well-ventilated area.
  • Wear chemical safety goggles and protective gloves during handling. After operation, wash hands and exposed skin thoroughly with soap and clean water.
  • Heating decomposition may release irritating fumes. Keep away from heat sources and open flames.
  • Avoid large amounts of untreated product entering water bodies, soil, and public drainage systems.
  • In case of eye contact, immediately flush with plenty of water for at least 15 minutes, moving the eyes to ensure thorough rinsing of the conjunctival sac.