The pH adjustment unit is to stabilize the pH value, homogenize the product and fine-tune the specifications when producing SLES and SLS.   When the finished product enters the adjustment unit and reaches a certain liquid level, the agitator will stir at a constant speed at the set rpm. Generally, this unit is equipped with multiple stirring tanks and works intermittently.   During the operation of the unit, controlling and testing is required to take samples at regular intervals to check parameters such as product neutralization value, pH, free oil, dioxane, color, etc. When the product quality is stabilized, it will be delivered to the tank farm.   In addition, an optional post deaeration system can be added in order to remove excess air bubbles from the adjusted products, resulting in a more transparent and better looking product.