Polypyrophosphate

Polypyrophosphate is a condensed chain phosphate anion. It has been used as an anti tartar (anti-calculus) chemical in tooth paste. It is also used in ink jet printers, and by Archaea as an energy storage chemical.

Sources

*http://www.thejcdp.com/issue004/white/01white.htm
*http://grande.nal.usda.gov/ibids/index.php?mode2=detail&origin=ibids_references&therow=251443
*http://www.ingentaconnect.com/content/mksg/cpe/2000/00000027/00000005/art00001
*http://arjournals.annualreviews.org/doi/abs/10.1146/annurev.nutr.26.061505.111258