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Sodium tripolyphosphate (Na5P3O10) is used in many synthetic detergents. Its major effect is to soften the water

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Sodium tripolyphosphate (Na5P3O10) is used in many synthetic detergents. Its major effect is to soften the water by complexing Mg2+ and Ca2+ ions. It also increases the efficiency of surfactants, or wetting agents that lower a liquid’s surface tension. The pK value for the formation of MgP3O103- is 28.60. The reaction is
Mg2+ + P3O105- ⇌ MgP3O103-.
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Mg 2 P 3 O 10 5 MgP 3 O 10 3 pK 860 Mg 2 0 21 10 3 M P 3 O 1...View the full answer


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Chemical Principles

Chemical Principles

ISBN: 978-1111580650

7th edition

Authors: Steven S. Zumdahl, Donald J. DeCoste

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