Overview
Octaethyleneglycol monododecyl ether (CAS 3055-98-9 ), also known commercially as Akypo Rox RLM22, is a nonionic ethoxylated alcohol surfactant with a C12 hydrophobic tail and an eight-unit ethylene oxide chain.
It functions as an emulsifier, wetting agent, and dispersant across a range of industrial and personal care applications. In personal care formulations, it stabilizes emulsions and improves spreadability in creams and lotions.
Textile and paper processing operations use it to enhance substrate wetting and dye penetration, improving uniformity across treatment baths. Water treatment and industrial cleaning formulations rely on its degreasing performance.
The chemical is effective at removing oils and particulates from surfaces and process streams. In printing and packaging, it supports ink dispersion and surface modification to improve adhesion and print quality.
Octaethyleneglycol monododecyl ether is typically supplied as a liquid or low-viscosity paste, depending on temperature and concentration. Technical-grade material is the standard commercial offering for most users.
High-purity grades are available for personal care and specialty formulation use. It is commonly available in drum and IBC quantities suited to industrial procurement volumes and large scale manufacturing needs.
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Physical Properties
| Melting Point | 30.6-30.9 °C |
| Boiling Point | 585.5±45.0 °C(Predicted) |
| Density | 0.984~0.992g/ml (35℃) |
| Flash Point | 32 °C |
| Appearance | colourless solid |
| Color | White to Off-White |
| Form | Solid |
| Water Solubility | water: soluble |
| Refractive Index | 1.449~1.455 (35℃/D) |
Safety & Handling
Danger GHS05 GHS07 Hazard Statements H315 Causes skin irritation H318 Causes serious eye damage H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. 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
| HS Code | 2909.49.6000 |
| Storage Class | 12 - Non Combustible Liquids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 3055-98-9
- EC Number
- 696-071-6
- Mol. Weight
- 538.8
- HS Code
- 2909.49.6000
- Category
- Alcohols & Glycols