ATLAS CHEMICALS DIVISION ATLAS POWDER COMPANY, WILMINGTON 9 9 , DELAWARE • ATLAS POWDER COMPANY, CANADA, LTD., BRANTFORD, ONTARIO, CANADA
Structure of Typical Surfactants HYDROPHILIC
PORTION
^WATER-LOVING^
PORTION
(OIL-IOVING)
+ Na
OOC
CI
HOCH
LI PO PHI LIC
OH I CH—CH—CH 2 00C-|
\ 0 / HOCH CH2
"•,-•'•.
DESCRIPTION A typical soap. The characteristically surface active portion of the molecule is the negatively charged ion (anion). Predominantly hydrophilic in action a n d therefore tending to form oil-inwater emulsions.
An alkyl pyridinium chloride. The characteristically surface active portion o f tho molecule is the positively charged ion (cation). Predominantly hydrophilic in action and therefore tending to form oil-in-water emulsions.
A typical SPAN® or ARLACEL® sorbitan fatty acid ester (major component). Predominantly lipophilic in action, and therefore tending to form water-in-oil emulsions.
H0(CH 2 CH 2 0) n H0(CH 2 CH 2 0) n CH—CH-CHCH 2 Q0C 0 / H0(CH2CH20)nCH—CH2
2 0
C&EN
M A Y 2 6, 1 9 5 8
A typical TWEEN® polyoxyethyN ene sorbitan fatty acid ester (major component). Predominantly hydrophilic in action and therefore tending to form oil-in-water emulsions.
H0(CH 2 CH 2 O)„0C
A typical MYRJ® polyoxyethylene fatty acid ester (major component). Predominantly hydrophilic in action and therefore tending to form oil-in-water emuisions.
H0(GH 2 CH 2 0) n
A typical BRU® polyoxyethylene fatty ether (major component). inra jt contains no ester linkages, . is stable to many alkalies a n d jcids beyond the usual pH range which ordinary emulsiflers can withstand. Predominantly hydrophilic in action and therefore tending to form oil-in-water emulsions.
INVESTIGATE N O N - I O N I C S FIRST W H E N Y O U NEED SURFACTANTS When you need one or more surfactants, it will p a y you t o investigate the inherent advantages of non-ionics—a field in which Atlas has specialized for over 15 years
