PH Tester

blcdilruk

Well-known member
  • Jun 13, 2009
    3,909
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    Gampaha
    Meke thiyena Chemical eka mokakda?
    Lankave ganna thiyenne koheda?

    41M4yzW-wVL._SX342_.jpg
     

    imhotep

    Well-known member
  • Mar 29, 2017
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    Usually these are weak acids in dye form that changes colour. Some of them have complex chemical structures such as C36H24FeN6O4S
    The chemical used depends on the manufacturer and the pH range you use it for.
    Aren't these available in places where they sell aquarium products?
     

    blcdilruk

    Well-known member
  • Jun 13, 2009
    3,909
    1,367
    113
    Gampaha
    Usually these are weak acids in dye form that changes colour. Some of them have complex chemical structures such as C36H24FeN6O4S
    The chemical used depends on the manufacturer and the pH range you use it for.
    Aren't these available in places where they sell aquarium products?

    This is Phenol Red Solution