Days Polymer AN-125 SH , 2000 ppm
Alpha olefin sulfonate, wt%
0.0 0.0 0.4 0.6 1.0
Acid to alkali concentrations, wt%
0 : 0 0.6:1.0 0.4:0.7 0.6:1.0 0.8:1.3
1 - - - - -
15 - - - - -
30 - - - - -
- denotes clear solution
Table 4: Summary of acid-alkali-surfactant-polymer interaction test during 30 days at 80oC.