Catalogue of Polosh Technologies 2012 Part 2 - Polonia

8) Didecyldimethylammonium saccharinate
Didecyldimethylammonium saccharinate an ionic liquid of sweet taste, with fungicidal and
bactericidal properties. 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:
R = C10H21
chemical formula: C29H52N2O3S
molar mass: 508.8 g/mol
Didecyldimethylammonium saccharinate is a thick, non-volatile liquid, crystallizing at room
temperature, of 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 291 °C.
A brief description of the technology
The compound is obtained in a reaction between didecyldimethylammonium chloride and
sodium saccharinate, conducted in aqueous environment. The product is separated by
extraction with methylene chloride. Resulting ionic liquid, solved in an organic solvent, is
concentrated by distillation under reduced pressure.
The product needs additional drying at increased temperature and under reduced pressure, in
order to remove water.
The reaction proceeds with big efficiency.
Advantages of the technology offered
The technology is simple, energy-saving and low-waste.
R
The reaction proceeds in water and methylene chloride used can be turned back to the next
synthesis. The only by-product is sodium chloride.
The technology has been implemented on the scale about 5 kg per batch.
R
N +
CH3
CH3
248
S
O
O
N -
O