UNISURF STAC (STEARALKONIUM CHLORIDE)
General Overview
UNISURF STAC is a quaternary ammonium-based cationic surfactant known for its excellent conditioning, antistatic, and emulsifying properties. Widely used in hair and skin care formulations, it is especially effective in improving hair softness, manageability, and static control. Derived from stearic acid, it is compatible with a wide range of emulsions and rinse-off formulations.
Product Properties
| Property | Description |
| Chemical Name | Stearalkonium Chloride |
| CAS Number | 122-19-0 |
| Molecular Formula | C21H46ClN |
| Molecular Weight | ~348.06 g/mol |
| Appearance | White to off-white flakes or paste |
| Ionic Character | Cationic |
| Solubility | Dispersible in water and alcohol |
| Active Substance (%) | Typically 70% – 75% |
| pH (1% Solution) | 5.0 – 7.5 |
| Biodegradability | Readily biodegradable |
Technical Specifications
| Parameter | Value |
| Melting Point | 60 – 70°C |
| Moisture Content | < 3% |
| Shelf Life | Minimum 24 months |
| Storage | Cool, dry, well-ventilated area |
Application Areas
| Industry | Examples | Function |
| Hair Care | Conditioners, hair creams | Conditioning, antistatic, softening |
| Skin Care | Creams, lotions | Emollient, emulsifier |
| Textile Care | Fabric softeners | Softening and antistatic additive |
Advantages
Effective hair conditioning and manageability
Antistatic and emulsifying agent
Derived from renewable stearic acid
Compatible with cationic and non-ionic systems
Biodegradable and easy to formulate
Packaging & Storage
| Feature | Specification |
| Packaging Options | 25 kg bags / 200 kg drums |
| Shelf Life | Minimum 24 months |
| Storage Conditions | Store in a cool, dry place |
| Transport Classification | Non-hazardous solid |
Safety & Handling
Use protective gloves and eye protection during handling
Avoid contact with eyes and prolonged skin exposure
Ensure proper ventilation during processing
Store sealed and protected from humidity
Conclusion
UNISURF STAC is a highly effective conditioning agent offering excellent softness, detangling, and antistatic benefits for both hair and fabric care products. It is an ideal choice for modern formulations requiring performance and mildness.
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