Product Name | Bis-hydroxyethyl Dihydroxypropyl Stearammonium Chloride |
CAS | 50744-86-0 |
Quality Standard | Standard |
Product Grade | Cationic Emulsifiers |
Place of Origin | China |
Dangerous Goods | No |
Bis-hydroxyethyl Dihydroxypropyl Stearammonium Chloride is a type of hydrophilic cationic quaternary ammonium salt surfactant, characterized by a molecular structure that consists of a long hydrophobic stearyl chain (C₁₈H₃₇–) and four hydrophilic hydroxyl-containing groups (–CH₂CH₂OH and –CH₂CH(OH)CH₃) bonded to the nitrogen atom. Under room temperature conditions, it exists as a pale yellow to off-white waxy solid or viscous liquid, featuring good water solubility and dispersibility. Unlike traditional cationic surfactants, its multiple hydroxyl groups enhance compatibility with water and non-ionic ingredients while significantly reducing irritation to skin and hair.
This surfactant integrates excellent cationic adsorption, conditioning, and emulsifying properties. The positively charged quaternary ammonium groups enable it to bind tightly to negatively charged substrates such as hair cuticles, skin, and textile fibers, forming a smooth, breathable protective film. Meanwhile, the hydroxyl groups boost the moisture-locking capacity of the film, making it a high-performance functional ingredient widely used in the personal care and textile finishing industries. It shows good compatibility with non-ionic and amphoteric surfactants, but direct mixing with anionic surfactants should be avoided to prevent precipitation.
Superior Conditioning and Moisturizing PerformanceThe cationic groups of bis-hydroxyethyl dihydroxypropyl stearammonium chloride can adsorb firmly onto the surfaces of hair and skin. The hydroxyl-containing hydrophilic segments lock in moisture, forming a hydrating protective film that reduces friction between hair strands, eliminates static electricity, improves combability, and leaves hair soft and glossy. For skin, it enhances moisture retention, relieves dryness, and does not cause a sticky or heavy feeling.
Effective Emulsifying and Stabilizing CapabilitiesIt can efficiently reduce the oil-water interfacial tension, stabilizing oil-in-water (O/W) emulsions. It is suitable for emulsifying various plant oils, mineral oils, and silicone oils, preventing phase separation of emulsions during storage or temperature fluctuations. It also has a certain thickening effect, which can improve the texture of formulations without compromising their spreadability.
Low Irritation and High CompatibilityCompared with traditional cationic surfactants, its multiple hydroxyl groups significantly lower irritation to skin and eyes, making it ideal for products targeted at sensitive scalps and skin. It is compatible with most non-ionic, amphoteric surfactants and cosmetic additives, expanding its application scope in formulation development.
Excellent StabilityIt maintains stable performance across a wide pH range of 4.0–8.0 and has good electrolyte resistance. Its conditioning and emulsifying effects are not easily affected by the addition of inorganic salts in formulations, ensuring consistent product quality.
This is the primary application field of bis-hydroxyethyl dihydroxypropyl stearammonium chloride, with its most extensive use in hair care products.
- Conditioners and Hair Masks: As a core conditioning ingredient, it repairs damaged hair cuticles, reduces tangling and frizz, and improves wet and dry combability. It is particularly suitable for dry, damaged, and chemically treated hair. The recommended dosage ranges from 0.5% to 2.0%.
- Leave-in Hair Products: Used in leave-in conditioners, hair serums, and styling creams, it provides long-lasting anti-static and moisturizing effects, keeping hair neat and manageable throughout the day without causing greasiness. The recommended dosage is 0.3%–1.0%.
- Skin Care Products: Added to moisturizing lotions, body creams, and sensitive skin care products, it enhances skin smoothness and moisture retention, forms a breathable protective film, and relieves skin dryness and tightness. The recommended dosage is 0.2%–1.0%.
- Mild Cleansers: Incorporated into baby shampoos and sensitive skin cleansers, it improves the mildness of formulations, reduces the irritation of anionic surfactants to the scalp and skin, and leaves a moisturizing after-feel. The recommended dosage is 0.1%–0.8%.
- Textile Softening Finishing Agent: It serves as a key ingredient in textile softening formulations, especially for high-grade fabrics such as cotton, wool, and silk. It adsorbs onto fiber surfaces, reducing friction between fibers, making fabrics soft, smooth, and anti-static, while enhancing the drapability of the fabrics. The recommended dosage is 1.0%–3.0% based on fabric weight.
- Leather Finishing Agents: Applied in leather fatliquoring and finishing processes, it helps emulsify leather oils and waxes, penetrates into leather fibers, and improves the softness and flexibility of leather. It also enhances the gloss of leather surfaces and prevents leather from cracking during storage. The recommended dosage is 1.5%–4.0%.
Storage ConditionsStore bis-hydroxyethyl dihydroxypropyl stearammonium chloride in sealed plastic or stainless steel containers, placed in a cool, dry, and well-ventilated area, away from direct sunlight and high temperatures (storage temperature should not exceed 40°C). Prevent moisture absorption and contamination by anionic substances. Under proper storage conditions, its shelf life is generally 24 months.
Safety InstructionsThis surfactant is not classified as a hazardous chemical. At normal usage concentrations, it has low irritation to skin and eyes, meeting the safety standards of cosmetic and daily chemical products. When handling industrial-grade high-concentration products, it is recommended to wear protective gloves and goggles to avoid direct contact with skin and eyes. If the product accidentally gets into the eyes, rinse thoroughly with plenty of clean water immediately. It has low toxicity to aquatic organisms, but direct discharge into water bodies should be avoided to protect the ecological environment.
Product Introduction