Glucose fructose syrup is a commonly used sweetener in the making of soft drinks, sauces, desserts and sweets.

In the preparation of Glucose-fructose syrup from corn, sodium hydroxide solution is often used. 1.Caustic soda is made by a process that uses mercury.

This may leave traces of mercury in the high fructose corn syrup.

A researcher found mercury levels of 0.0015 to 0.95 mcg of mercury per gram in Glucose fructose syrup in 2018. He calculated that a person who consumes 50mg of Glucose-Fructose Syrup per day through food and drinks could unknowingly ingest 47.5mcg of mercury.

 1. Caustic soda is used, among other things, for the saponification of fats, for cleaning and unblocking. It is also a widely used means of adjusting the pH. Contact with the eyes can cause visual impairment and blindness. Caustic soda is considered corrosive when the concentration exceeds 2%. If sodium hydroxide solution is present on the skin or in the eyes, it should only be rinsed with water and should therefore not be rubbed. Acid neutralizes caustic soda, but in this exothermic reaction a lot of heat is released, which must then be prevented. For the same reason, precautions must be taken so that caustic soda does not come into contact with acid. 

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