Pandithavidana, D. R.; Jayalath, W. I. M.
(International Journal of Science, Environment and Technology, 2019)
Nonylphenol ethoxylates (NPEs) are group of non-ionic surfactants commonly known as Tergitol NP surfactants. The hydrophilic-lipophilic-balance (HLB value) is used as the key parameter by surfactant formulators to study ...