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Why do I have to show my ID card to buy more than five kilograms of sugar?
For fear of being used as raw material for bombs. Nitroglycerin reaction: 5c6h 12o 6+24k NO3- heating >12k2co3+18co2+12n2 (gas)

Can be made of chemical fertilizer and white sugar. There is a plot in "Mars Rescue" that needs to blow up a warehouse door of the Hermes. Chemist Alex made a bomb with white sugar and "other things".

However, there is no need to worry that someone will make explosives, because the country explicitly prohibits the use of agricultural potassium nitrate in large quantities. Agricultural potassium nitrate is a strong oxidant, which will cause combustion and explosion when it comes into contact with organic matter, and has high solubility. Its effective components, nitrogen and potassium, can be quickly absorbed by crops without chemical residue, and it is suitable for fruits, vegetables, flowers and some chlorine-sensitive crops.

Even so, you should pay attention. If you need to buy five kilograms of sugar, don't forget to bring your ID card, otherwise ... no one will sell it to you or "see you at the police station".

Little knowledge sugar

White granulated sugar

According to the different sugar-making processes, white sugar can be divided into sulfide sugar and carbonized sugar. At present, there are three kinds of sugar making methods or clarification methods adopted by countries all over the world, namely lime method, sulfurous acid method and carbonic acid method.

Lime process can only produce coarse sugar with dark color; White sugar that can be eaten directly can be made by sulfurous acid method, also called sulfide sugar; The method of clarifying sugarcane juice with lime and carbon dioxide is called carbonation, and the sugar produced is called carbonated sugar.

Carbonated sugar has long shelf life, good quality, relatively high production cost and market price. At present, most sugar factories in China produce sulfide sugar. China is an important producer and consumer of sugar, ranking fourth in the world after Brazil, India and the European Union. In recent years, China's sugar production and consumption have exceeded100000 tons, and the production and sales are basically balanced, with a slight gap. The gap is mainly made up by imported sugar and national reserve sugar.

potassium nitrate

Agricultural potassium nitrate

Potassium nitrate can be divided into agricultural use and industrial use. The main differences between agricultural potassium nitrate and industrial potassium nitrate are:

Different purity: industrial potassium nitrate has higher purity and less chlorine content than agricultural potassium nitrate.

Different implementation standards: industrial-grade potassium nitrate and agricultural-grade potassium nitrate are used in different directions because of their different characteristics, but industrial-grade potassium nitrate is mostly used in water-soluble fertilizers.

Different uses: industrial potassium nitrate uses: as catalyst, mineral processing agent, preservative and chromogenic agent.

Application of agricultural potassium nitrate: it is a high-quality chlorine-free potassium fertilizer, all of which are water-soluble nutrients. Potassium ions and nitrate ions can be quickly absorbed by crops, which can significantly improve the yield and quality of various cash crops.

References:

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