One phase, amounting to {TAIL ~ 0.5 5.0 parts} per 100 parts of the other phase, consists of an aqueous solution of sodium hydroxide whose concentration is in the range of 25 to 55 percent by {HEAD ~ weight} 
One phase , amounting to { TAIL ~ 0.5 5.0 parts } per 100 parts of the other phase , consists of an aqueous solution of sodium hydroxide whose concentration is in the range of 25 to 55 percent by { HEAD ~ weight }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD