Catalogue of Polosh Technologies 2012 Part 2 - Polonia

7) Didecyldimethylammonium acesulfamate
Didecyldimethylammonium acesulfamate – an ionic liquid with fungicidal and bactericidal
properties. The compound may be used as an active agent in cosmetic preparations, such as:
� toothpastes,
� antiseptic mouth rinses.
It has no toxic effect on warm-blooded organisms (toxicity class IV).
Structural formula:
chemical formula: C26H52N2O4S
molar mass: 488.8 g/mol
Didecyldimethylammonium acesulfamate is a thick liquid, with color from light-yellow to
willow-green-lemon, specific, pleasant smell and sweet taste.
Well soluble in chloroform, chloromethane and ethanol but poorly soluble in warm and cold
water. Total decomposition temperature is 483 °C.
A brief description of the technology
Didecyldimethylammonium acesulfamate is obtained in a reaction between
didecyldimethylammonium chloride and potassium acesulfamate, conducted in aqueous
environment. The product is separated by extraction with methylene chloride. The ionic liquid,
solved in an organic solvent, is concentrated by distillation under reduced pressure.
Purification of the product is conducted with extraction methods.
In order to remove water, additional drying of the product is needed, at increased temperature
and under reduced pressure.
Advantages of the technology offered
The technology is simple, energy-saving and low-waste.
The environment of the reaction is aqueous and methylene chloride used can be turned back
and used in the next synthesis. A waste product is potassium chloride.
The reaction proceeds with big efficiency.
The technology has been implemented on the scale about 5 kg per batch.
R
N +
R CH3
CH3
R = C10H21 O S
H3C O
O
246
O
N -