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sodium tripolyphosphate

[trahy-pol-ee-fos-feyt] /ˌtraɪ pɒl iˈfɒs feɪt/
noun, Chemistry
1.
a white powder, Na 5 P 3 O 1 0 , used as a water softener, sequestering agent, and food additive.
Also called sodium triphosphate.
Origin
1940-1945
1940-45; tri- + poly- + phosphate
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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