RPI-4500A is specially designed to inhibit the scale formation in RO systems when the feedwater is mainly composed of Calcium & Magnesium with a substantial amount of Silicate. RPI-4500A is also efficient to prevent the formation of calcium carbonate based scale.
RPI-4500A is approved for use with cellulose acetate and polyamide membranes. The required dosage level ranges from 1 – 8 ppm as delivered. The dosage is proportional to the feed water flow. RPI-4500A can be used in its concentrated form or diluted with pure water in any ratio. Diluted preparations must be ideally used rapidly, within 48 hours after preparation. RPI-4500A is easy to use, safe to handle and safe to store for several months.
Appearance: clear, slightly yellow liquid
Density: 1.14 – 1.17 g/cm3
pH value: 4.0 – 4.3
Boiling point / boiling range: 100°C – 105°C
Freezing Point: -10°C
Solubility in water: unlimited
Storage & Handling
Polyethylene canister (PE) 23.5 kg net
Standard drum (PE) 240 kg net
IBC Container (PE) 1,100 kg net