What is the difference between food grade caustic soda and industrial caustic soda？

　　Soda flakes can be divided into food grade soda flakes and industrial soda flakes.Food grade soda flakes are actually a commodity that solves the problem of food ingredients.Next,let me explain the difference between the two.
　　1.The purity of these two is different:food grade caustic soda refers to NaOH and residue components that meet various standards of the national standard GB5175-2008 for food preservatives NaOH,mainly used in food production and processing
　　2.Different uses:Industrial caustic soda is widely used in wastewater treatment.Alkali flakes in sewage treatment plants can reduce water hardness through neutralization reactions.Food grade caustic soda is classified as a food processing aid and is suitable for some aspects of food production and processing.In the food industry,it is mainly used as an acid value and synergist.
　　3.Inconsistent packaging:Food grade caustic soda generally uses shrink fit packaging,while industrial caustic soda packaging is only waterproof packaging.
　　4.The values of biochemical and heavy metal exceedance indicators are inconsistent.Twenty nine percent of the caustic soda is only used for industrial production purposes.
　　5.Food grade refers to sodium citrate that has undergone unique processing techniques to remove harmful ingredients to the body.Even if the purity of pure sodium citrate is high,it only indicates that it contains less residue.Simply put,food grade can be used to add it to food.
　　6.Chemical plant grade caustic soda is only used for the development and design of chemical raw materials.
　　The above is the difference between food grade caustic soda and industrial grade caustic soda introduced by the editor.The purity of food grade caustic soda is higher than that of industrial grade caustic soda,and the regulations on residue are more stringent.Therefore,it cannot be said that all caustic soda contains danger!