Oxycon pH (phenol red) 45ml Reagent for water analysis Specifications Phenolred for the determination of pH – 45ml Contact us to place an order. Downloads Downloads Click Here Related Products Sodium standard solution 1000ppm, 100ml Oxycon Ozon (DPD 1a & 1b, 2, GL, each 1x 45ml) Oxycon GL Oxycon DES (Start, DPD 1a & 1b, GL, each 1x 45ml)