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60% solution of 1-hydroxyethyliden-1,1-phosphonic acid.

Phosphonate used in industrial water treatment, as a corrosion inhibitor or antifouling depending on the application.

Hardness scavenger, used in the textile industry.


50% solution of phosphono butane tricarboxylic acid.

Phosphonate used as an aid in water treatment in cooling systems with high hardness among other applications.