Phosphonate Corrosion & Scale Inhibitor for Cooling Systems (Hard Water) – 2507

This product has been replaced by Accepta 2312


Accepta 2507 is a high performance, phosphonate based corrosion and scale inhibitor cooling water chemical scientifically formulated for the treatment and protection of cooling water systems operating under hard water conditions.

Accepta 2507 comprises an aqueous solution of sodium hydroxide, phosphonates, polymers and azole.

Accepta 2507 has an excellent environmental profile and is considered an environmentally friendly, biodegradable scale and corrosion inhibitor.

Accepta 2507 is designed specifically for hard water open cooling systems and evaporative condensers and offers an array of performance benefits.

Achieving superior results against the corrosion of steel, copper and brass, Accepta 2507 also controls the effect of water hardness and the formation of scale as well as containing an effective dispersant.

Accepta 2507 is suitable for systems with a pH higher than 8.5

In addition Accepta 2507 is stable to both chlorine and bromine at the levels normally found in cooling systems.

Product Benefits

  • High performance phosphonate based corrosion and scale inhibitor for cooling water systems
  • Controls the corrosion of steel, copper and brass
  • Contains an effective dispersant
  • Environmentally friendly, biodegradable
  • Low toxicity
  • Excellent water hardness corrosion control
  • Stable to chlorine and bromine at the levels normally found in cooling water systems
  • Controls the formation of scale
  • Compatible with most cooling water treatment products

Product Properties

Fprm: Liquid
Colour: Pale orange
Odour: Perceptible odour
pH: 10.0 – 11.0
Relative density: 1.10
Solubility in water: Miscible in all proportions

*Full details of the product properties are available in the Safety Data Sheet. See below.

Application & Dosage Information

Accepta 2507 should be dosed to give 100 – 150 ppm in the system.

It is important when starting up a new system or re-starting an existing system to apply a dose of 300 ppm.

Accepta 2507 is for hard water systems only.

Testing & Control

Test for phosphonate ( 1.8 ppm as o-PO4 at 100 ppm) using the phosphonate micropipette method.

It is always advisable to carry out a ‘Control Of Substances Hazardous to Health’ (COSHH) assessment before use.

For further technical assistance concerning Accepta 2507 please contact Accepta.

Safety, Storage & Handling

For full details concerning safety precautions, storage and handling procedures for this product please refer to the latest Safety Data Sheet. To request the latest MSDS for this product please fill out the form below.

    Additional information

    Weight 25 kg