prov:value
| - ein the ratio of Me O to P 0 is from 1 to 3:1, Me being sodium or potassium, including sodium tripolyphosphate, sodium and potassium pyrophosphate, sodium and potassium orthophosphates and sodium hexametaphosphate, an anhydrous, solid, water-soluble alkali metal silicate wherein the ratio of SiO; to Me O is 0.5 to 3.22:1, Me being sodium or potassium, including sodium mgtasili te, sodium sesquisil
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