Alkalinity Test Reagent TK - 7 Nov 13, 2024 0 comment blog Alkalinity Test Reagent TK - 7 Add 1-2 drops of RXSOL TK7 and mix with the stirring rod , If sample turns red / PINK ( which indicates presence of p-Alkalinity ) then follows 3rd step otherwise if sample remains colourless ( Record p-Alkalinity = 0 ) Code: RXSOL-62-6201-001 Other Equivalent Brand No.1 Alkalinity Short Description: Details