Lauryldimethylamine Oxide
LDAO, Dodecyldimethylamine oxide, OA-12, Lauramine Oxide.
- CAS
- 1643-20-5
- EC
- 216-700-6
- Sectors
- Personal Care & Cosmetics, Home Care & Industrial Cleaning
Lauryldimethylamine Oxide (CAS 1643-20-5) is a non-ionic/amphoteric surfactant supplied as a 30% active solution in water, a clear yellow liquid that stabilizes foam, thickens formulations and improves detergency in shampoos, bubble baths, dishwashing liquids and multi-purpose cleaners. It is supplied as a 30% Active Solution for ease of formulation in aqueous systems.
This chemical is highly valued for its detergency and compatibility with anionic, cationic, and non-ionic systems. It remains stable across a wide pH range, making it ideal for bleach-based and acidic cleaners.
In personal care, it acts as a conditioning agent, improving the feel and manageability of hair. Its mild nature reduces the irritation potential of other harsh surfactants in shampoos and body washes.
Typical Properties
| Molecular formula | C14H31NO |
|---|---|
| Molecular weight | 229.4 g/mol |
| Appearance | Clear yellow Liquid |
| Form | A crystalline solid |
| Color | White to off-white |
| Melting point | 132-133 °C |
| Density | 0.996 g/mL at 20 °C |
| Water solubility | Insoluble in water. |
| Flash point | 113°C (closed cup)(235 |
| pH | 7.0-9.0 (25°C, 0.1M in H2O) |
| GHS signal word | Warning · Corrosive, Irritant / harmful, Environmental hazard |
| HS code | 29299090 |
| Grades available | Cosmetic Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Lauryldimethylamine Oxide
Applications
- Home Care: Used in dishwashing liquids and multi-purpose cleaners as a primary grease emulsifier and foam booster.
- Personal Care: Formulated into shampoos and bubble baths to provide a creamy lather and skin-conditioning benefits.
- Industrial Cleaning: Applied in textile processing and oilfield chemicals as a high-efficiency wetting agent and stabilizer.
Safety & Risks
Classified as Corrosive and Acute Toxic. Causes Severe Skin Burns and Eye Damage. Mandatory use of Chemical Goggles, Nitrile Gloves, and Face Shields is required.
Packaging
200 kg Plastic Drums, 1000 kg IBC Tanks, or bulk ISO tankers.