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Surfactants

Decyldimethylamine oxide

CAS: 2605-79-0

Overview

Decyldimethylamine oxide ( CAS 2605-79-0 ), also known as capric dimethyl amine oxide, is an amphoteric surfactant that shifts between cationic and nonionic behavior depending on pH.

This dual character makes it effective across a broad range of formulated cleaning, foaming, and conditioning systems. In personal care, it boosts foam volume and stabilizes lather in shampoos.

It is frequently used in body washes and facial cleansers while improving the feel of the rinse. Industrial and institutional cleaning formulations use it to enhance detergency and support emulsification.

It helps break down oils and greases at lower active concentrations. Water treatment programs incorporate it for its dispersing action, helping to break down organic deposits and improve process efficiency.

In textile and paper processing, it functions as a softening and conditioning aid. This contributes to surface modification during wet finishing stages and improves the final texture of the materials.

Decyldimethylamine oxide is supplied as an aqueous solution, typically at 30% active content. Both standard industrial-grade and personal care-grade versions are available for various industrial needs.

The latter meets the purity requirements expected for rinse-off and leave-on cosmetic applications. Drum and IBC packaging are the standard supply formats for commercial quantities and bulk logistics.

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Physical Properties

Melting Point70 - 73°C
Density0.996 g/mL at 20 °C
AppearanceLiquid
ColorWhite to Off-White
FormSolid
Water Solubility409.5g/L at 30℃
Vapor Pressure0Pa at 25℃
Refractive Indexn 20/D 1.337
Log P0.95 at 20℃

Safety & Handling

Danger GHS05 GHS07 GHS09 Hazard Statements H302 Harmful if swallowed H315 Causes skin irritation H318 Causes serious eye damage H400 Very toxic to aquatic life H411 Toxic to aquatic life with long lasting effects Precautionary Statements P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

WGK (Germany)3

Other Names

NN-Dimethyl-1-decanamine-N-oxide | Decylamine-NN-Dimethyl-N-Oxide | Capric dimethyl amine oxide | NN-dimethyldecylamine N-oxide | Decylamine oxide | 1-DecanamineNN-dimethyl-N-oxide | NN-Dimethyldecylamine oxide | NN-dimethyldecanamine oxide

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Chemical Properties

CAS Number
2605-79-0
EC Number
220-020-5
Mol. Weight
201.35
Category
Surfactants

Industries

Documentation