Monofluorophosphate solubility inhibitor for lead in potable wat

Details Monofluorophosphate solubility inhibitor for lead in potable wat Monofluorophosphate solubility inhibitor for lead in potable wat

1990-10-15

1991-12-31

Silverman, Stanley S.

Liquid purification or separation

Processes

Chemical treatment

252387, 422 7, 422 14, 422 18, 210697, 106 1405, 106 1412, C02F 168

Patent

active

050769413

ABSTRACT:
Monofluorophosphate salts, especially sodium monofluorophosphate (Na.sub.2 PO.sub.3 F), when added to potable water sources in concentrations between 0.1 mg/L and 500 mg/L, significantly reduces lead (Pb) leaching into said water, producing the double benefit of reducing lead solubility and thus content in drinking water, while at the same time adding fluoride to that drinking water, with the anticaries benefit that fluoridation provides.

REFERENCES:
patent: 4561981 (1985-12-01), Characklis
patent: 4613450 (1986-09-01), Moran et al.
patent: 4737356 (1988-04-01), O'Hara et al.

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