Moisturized compositions of hydrate-forming phosphates and methods for preparation thereof
AssigneeMonsanto Company
InventorLouis A. Highfill
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Abstract
A composition of matter in particulate, crystalline form. The composition comprises a hydrate-forming phosphate selected from the group consisting of sodium tripolyphosphate, sodium pyrophosphate and trisodium phosphate, between about 0.1% by weight and about 23% by weight added water in the form of water of hydration said water containing in solution sufficient surfactant to provide the composition from about 0.20 ppm and about 125 ppm of a surfactant. Methods for preparing such compositions are also disclosed.
Claims14
A composition of matter in particulate, crystalline form, free-flowing during storage and prolonged exposure to ordinary ambient temperature and humidity conditions, having an increased rate of hydration and resistance to caking comprising sodium tripolyphosphate, and from about 0.1% by weight and about 23% by weight added water in the form of water of hydration, said water containing in solution sufficient surfactant to provide the composition with from about 0.2 ppm to about 125 ppm surfactant.
A composition of matter in particulate, crystalline form, free-flowing during storage and prolonged exposure to ordinary ambient temperature and humidity conditions, having an increased rate of hydration and resistance to caking comprising sodium tripolyphosphate, between about 0.1% by weight and about 4% by weight water in the form of water of hydration and between about 0.2 ppm and about 20 ppm of a surfactant in the composition.
A granular sodium tripolyphosphate composition free-flowing during storage and prolonged exposure to ordinary ambient temperature and humidity conditions, having an increased rate of hydration and resistance to caking comprising from about 21% to about 23% added water, said water containing in solution sufficient surfactant to provide the composition from about 100 ppm to about 125 ppm surfactant in the composition.
Dependencies are inferred from the claim text.