Contrary to negatively charged cleaners (anionic surfactants) and positively charged cleaners (cationics), ethoxylated fatty alcohols have no charge. By ethoxylating fatty alcohols (adding an ethoxy group –O-C2H5) an accessible oxygen atom comes available. The oxygen atom forms so called hydrogen bridges with the water molecules. This way, without a charge, still a hydrophilic end is added to the fatty alcohol molecule. They remain non-ionic, and therefore less aggressive in their cleaning. This explains their mild behaviour.
An ethoxylated fatty alcohol is characterised by the length of its fat-alcohol chain and by how many ethoxy groups are attached to that chain. The length of the (dirt dissolving) fatty chain is indicated by the number of C-atoms (“C12-C18” means chains of 12 to 18 C-atoms). The number of (water binding) ethoxy groups is depicted by the amount of “mol EO”, a measure for the number of molecules Ethylene Oxide.
Our ethoxylated fatty alcohols are ideal for use in liquid detergents. As they are non-ionics, having no charge, these raw materials result in mild cleaners, such as wool detergents.
The mildest types are those with a linear C-chain (no branches). These are also optimally broken down biologically. Just like we, bacteria rather not place their teeth in products with complex 3-dimensional structures. A “bar” of C-chains is easier consumed.
The features of linear ethoxylated fatty alcohols are:
• Mild cleaners (wool, face, hands)
• Emulsifying (avoid sagging of other ingredients, such as fragrances and colourants in the end product)
• Dissolving (hydrophobic ingredients are kept in solution by ethoxylated fatty alcohols in a water based end product)
• Wetting of surfaces (so the cleaning job by the end product becomes more effective, or by enhancing the moisturizing job of skin and hair –conditioner-cosmetics)
Ethoxylated fatty alcohols are stable up to 130oC and within a broad pH range.
The Sirius Effect
Sirius International has long searched for competitive ethoxylated fatty alcohols. The one manufacturer produces its own fat-alcohols, but has to buy the Ethylene Oxide, or source out the ethoxylation. The other manufacturer obtains the fat-alcohols from outside and only ethoxylates. Both processes conventionally result in high costs. At this moment we cooperate with a partner who does provides both raw materials, as well as controls both parts of the process.
Thérefore we can offer you competitively right now:
• C12-14 1mol, 2mol, 3mol, 5mol, 7mol, 9mol EO
• C12-18 7mol EO
Tel: +31 (0) 35 5485898
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