Figure 2. Viscosity of the surfactant base 9/2% SLES/CAPB

Viscosity of the surfactant base 9/2% SLES/CAPB, at pH 6.5, as function of: a) increasing levels of rheological agent, in the absence of salt, and b) with increasing salt content, at a constant 2% active rheological agent. c) At 1% NaCl, the formulation with polyacrylate-33 was clear, while that with acrylated copolymer was turbid; note: Brookfield viscosity at 10 rpm.