Multiple choice

Which of the following components of detergents acts as water softeners?

  1. Builders

  2. Bleach

  3. Enzymes

  4. Dye transfer inhibitors
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A Correct answer
Explanation

Builders are water softeners. These chemical compounds are agents that remove calcium ions by complexation or precipitation. Typical builders are sodium carbonate, complexation agents, soap and zeolites. They function by sequestering or precipitating the problematic ions. One of the most common builders is sodium triphosphate, which is used on very large scale for this application.

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