... .13%,appearance no change when dipping in 1.0% vitriol for 650 hour resistance to alkali K:0.08%,appearance no ... cleanserTea, coffee ice cream, fat NaOH.KHCO3 watery alkalic liquidSediment,ink, rust, ash slurry HCL.HNO3.H2SO4 watery acidic liquid,oxalic ... acid best for inkOil paint, drawing pen oil of turpentine, acetSauce, wax, carbon ...