Dissolution and dilution : Water soluble1 miscible chemical wastes which are harmless in high dilution may be run into the drainage with plenty of water. It may be noted that alkali wastes also come under this category of treatment.
Examples: Acetone, methanol, ethanol, dioxan, acetic acid, ethyl methyl ketone, ammonia (solution), hydrogen peroxide, oxalic acid, dimethyl sulphoxide, hydroquinone , p-benzoquinone, ammonium sulphide, potassium hydroxide and sodium hydroxide.