Q
what causes polyethylene glycol to turn orange brown
I am an expert in the industrial chemical process, and here to share insightful discussions on pioneering advancements in this field.
Polyethylene glycol (PEG) turning orange brown is typically a result of oxidative degradation. PEG can degrade when exposed to air (oxygen) and light, leading to the formation of oxidative products, which contribute to the color change. This process can be accelerated by high temperatures and the presence of metal ions, which catalyze the oxidation reactions. The color change is a warning sign of alteration in the chemical structure of PEG, which may affect its properties and efficacy in its intended applications. To minimize this degradation, storing PEG in a cool, dark place and using appropriate stabilizers can be helpful.
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