Newly recognized pollutant widely present in atmosphere

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1. What is Dimethylpolysiloxane?

https://foodadditives.net/antifoaming-agent/dimethylpolysiloxane/

Why Mcdonalds Use it in Frying Oil?

From the official website of Mcdonalds’ Gulf region, we can know, dimethylpolysiloxane is a food-grade additive acts as an anti-foaming agent to protect their crew from excessive foaming, splashing or bubbling, which occurs when food is added to very hot oil.
What is it Used for?

PDMS is a silicon-based organic polymer that can be used as an antifoaming agent in fruit and vegetable juices, also it is an anticaking agent in confectionery and flour products, and meanwhile an emulsifier in edible oils essentially free of water.
How is it Made?

PDMS is produced by hydrolysis of a mixture of dimethyldichlorosilane and a small quantity of trimethylchlorosilane.