Phosphonic acid, (1-methylethenyl)-, homopolymer, sodium salt

Sodium polyvinylphosphonate (CAS 118632-18-1), commonly referenced as the sodium salt of poly(vinylphosphonic acid), is a water-soluble polymeric sequestrant used across industrial water management and surface treatment processes.

It functions by binding metal ions and inhibiting scale formation, making it effective in systems where conventional phosphonates fall short. In water treatment, it controls calcium carbonate and calcium phosphate scale.

This occurs in cooling towers, boilers, and recirculating systems, particularly at elevated temperatures and high hardness levels. Industrial and institutional cleaning formulations incorporate it to sequester hardness ions.

This improves detergent performance in hard water conditions. Textile processing operations use it to prevent metal ion interference during dyeing and finishing, protecting color consistency and fabric quality.

In paper manufacturing, it supports process water management by controlling mineral deposits that would otherwise disrupt equipment and reduce output quality. This ensures consistent production standards.

Sodium polyvinylphosphonate is supplied as an aqueous solution, with active content typically ranging from 30% to 50%. It is available in technical grade for industrial applications.

Packaging options generally include drums and IBC totes suited to bulk industrial procurement. This ensures safe handling and efficient transport for large-scale manufacturing and chemical processing facilities.