DHTDMAC dimethylammonium

DHTDMAC Bis(hydrogenated tallow) dimethylammonium chloride AO N,N-dimethyldodecylamine N-oxide... 

No. 251 Bis (hydrogenated tallow) dimethylammonium chloride CAS-RN=61789-80-8 (hereinafter referred to as DHTDMAC)... 

Di-hard tallow dimethylammonium chloride (DHTDMAC), where R is a hydrogenated tallow alkyl (C /Cig chain). 

Organoclays are also used in printing inks for rheological control, in oil-based paints and in oil-continuous latex polymers. In addition, they are used to thicken nail polish and for fabric conditioning, where in the latter the organoclays provide a carrier for the (di(hydrogenated tallowalkyl)dimethylammonium chloride) (DHTDMAC) fabric softener, and provide additional softening due to the lubricity of the clays. 

By far the largest use of esterquats today is as actives in rinse cycle softener formulations. Softeners at the same time have the largest single use of quaternary ammonium compounds. The breakthrough of esterquats in this application was in 1991, when European detergent manufacturers reformulated their rinse cycle softeners due to pressure from environmental authorities. The active compound under concern, di(hydrogenated-tallow)dimethylammonium chloride (DHTDMAC), which had been used safely for more than 30 years in fabric softeners, was given an environmentally hazardous classification suddenly. The reason was that there was evidence from laboratory studies that the PEC of DHTDMAC may have exceeded its PNEC, particularly in poorly diluted surface waters. 

---