protective colloid वाक्य
उदाहरण वाक्य
मोबाइल
- Polyvinyl alcohol is used as an emulsion polymerization aid, as protective colloid, to make polyvinyl acetate dispersions.
- It is defined as the minimum amount of protective colloid in milligrams which prevents a color change from red to violet of 10ml gold sol by the addition of 1 ml of 10 % NaCl solution.
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