About the chemical principle of self-heating hot pot is as follows:
Generally, the heating pack of self-heating hot pot is made of sodium carbonate, roasted diatomaceous earth, iron powder, aluminum powder, coke powder, activated charcoal, salt, quicklime and so on, and the main reactant is quicklime.
Lime and water to produce hydrated lime, issued a large amount of heat, can make 1L of water temperature rise 13.78 ℃ . General self-heating hot pot into the amount of water for a bottle of mineral water, water in 20 seconds can be warmed over 90 ° C, the process also produces a lot of gas, improper operation is likely to trigger an explosion. The main reaction principle: CaO + H2O = Ca (OH) 2 + heat (mainly)
Self-heating hot pot operation: open the lid, all the ingredients, ingredients all out. Pour the hot pot base, vermicelli, meat and vegetables all inside the small box.
Pour warm or cool water into the box, the water can be diffused over the ingredients, and then stir, stir well. Tear open the bag on the outside of the heating pack and pour cool water into the outer box, then place the heating pack inside. Place the box with the fondue ingredients inside the outer box, close the lid and wait for 15 minutes.
The heating pack must be put into the cold water to heat up; when you cover the lid of the box, you must pay attention to the vent hole must be opened to be careful of the water vapor scalding hands and the bottom of the box high temperature
Self-heating hot pot is a kind of instant food. Self-heating hot pot without fire or electricity, it is mainly composed of ingredients, ingredients pot, pot cover, outer pot and heating package. Its heating principle is to use the substance inside the heating pack to contact with water, releasing heat, which makes the food in the upper ingredient pot rise in temperature after absorbing heat.