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Sodium Fatty Acid Methyl Ester Sulfonate
Performance and Application:
Sodium fatty acid methyl ester sulfonate (MES) is a new anionic
surfactant with excellent performances. MES is made from natural
oil and fat. It is obtained by esterification, hydrogenation,
sulfonation, aging, bleaching and neutralization. MES has good
detergency, emulsification and thickening, tolerance to hard water,
low irritation and toxicity, good biodegradability, moderate
foaming ability, easiness to rinse. For good compatibility with
LAS, SLES, AOS, SLS, it is applicable in detergents, personal care,
textile, leather chemicals, ore flotation agents and plastic
additives, especially in liquid detergent such as shower gel, hand
washing, laundry liquid and soap, etc. In shower gel and other
liquid detergents, MES can improve detergency and thickening, skin
irritation and skin feeling; In washing powder, MES can make
products easier to rinse and washed, fabric much softer; In the
soap products, MES can greatly improve the re-deposition of
|Appearance(25℃)||Light yellow flake, or grain, or needle||Light yellow gel or solid|
|Active matter a / %||≥80||70±2||30±2|
|Petroleum ether solubleb / % ≤||2.5||2.5||2.5|
|Di-sodium saltb/ % ≤||5||5||5|
|pH(25 degree,1% a.m)||4.5～7.0||≤10|
|Color/Hazen(5%a.m (1+1) ethanol water ≤||100||100||100|
|Carbon chain %|
C14 & below 2.0Max
C16 59 Min
C20 & above 1.0Max
|Note:a Should be marked the average molecular weight of product.； |
|b Calculated as 100% active matter|
The Krafft point of MES is 17～30 degree so the solubility at low
temperature is poor.
It is easy to hydrolyse resulting di-sodium salt when contacts with
acid, alkali and high temperature.
Direction for use:
MES(30%) is viscous liquid above 30 degree, and becoming gel below
30℃. It would be layered for long-time storage in low temperature.
Solid MES is flake or powder at normal temperature, and easily bond
when store above 45degree.
MES(30%,55%) is soluble in water above 30 degree. For solid
product, it is suggested to use with hot water (40~70 degree);
Recommended use (as 100% a.m): 2~4%(liquid detergent), 3~8%(washing
powder), 2~8% (liquid laundry detergent)
Packing for solid product: 20 kg or 25 kg (N.W.) per plastic bag;
Packing for gel product: 100kg, 150kg or 200kg (N.W.) per plastic
drum (lining plastic bag). Or Storage in 40~50 degree by water
heating and transported by tanker; It is prohibited storage above
60 degree for a long time.
During the transportation process, the container should not leak
and fall. Loading and unloading should be light, not throw.
Storage in cool and ventilated place. Keep away from ignition and
heat sources. Avoid direct sunlight.