Alternatively, the phosphate ester may be prepared by a reaction of the ethoxylated alcohol with {HEAD ~ phosphoric anhydride} to form {TAIL ~ a di ester/mono ester mixture} 
Alternatively , the phosphate ester may be prepared by a reaction of the ethoxylated alcohol with { HEAD ~ phosphoric anhydride } to form { TAIL ~ a di ester / mono ester mixture }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL