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persalt
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Bleach activator
When dissolved in water, the persalt releases hydrogen peroxide (e.g. from sodium percarbonate):
2Na2CO3∙3H2O2 → 2Na2CO3 + 3H2O2
In a basic wash solution The only use of bleach catalyst/persalt combinations to date (2017) is used in dishwashing detergents.
References
Bleaches
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en.wikipedia.org
per-salt
persalt, per-salt Chem. (ˈpɜːˌsɒlt, -ˌsɔːlt) [f. per- 5 + salt.] A salt formed by combination of an acid with the peroxide of a metal.1820 Faraday Exp. Res. x. 30 The per-salts give it [rhubarb paper] an olive-green-tint, while the proto-salts produce no change. 1836–9 Todd Cycl. Anat. II. 504/1 A s...
Oxford English Dictionary
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protosalt
protosalt Chem. (ˈprəʊtəʊsɔːlt) [f. proto- 3 + salt1.] A salt formed by combination of an acid with the protoxide of a metal, e.g. a salt of ferrous oxide, FeO, as ferrous sulphate, FeSO4.1820 Faraday [see persalt]. 1836–41 Brande Chem. (ed. 5) 592 The protosalts of iron are in these cases preferabl...
Oxford English Dictionary
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set
▪ I. set, n.1 (sɛt) Also 4–5 sete, 3–6 sette, (6 seat), 5– (now prevalent in many technical senses) sett. [f. set v.1, partly directly from the vb.-stem, and partly a subst. use of set ppl. a.; the two formations cannot always be distinguished. OE. had set neut., seat (in sing. place of setting of t...
Oxford English Dictionary
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