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Liq­uid hy­dro­gen per­ox­ide has greater en­er­gy than liq­uid wa­ter and gaseous oxy­gen by 23 kcal, i.e. Study­ing the re­ac­tion of the break­down of hy­dro­gen per­ox­ide Warn­ing! Don’t try to re­peat this ex­per­i­ment with­out a pro­fes­sion­al su­per­vi­sion! We rec­om­mend you to do a safe, but in the same time amaz­ing ex­per­i­ment - “ Egyp­tian night”. Some­times potas­si­um io­dide is used, but ex­per­i­ments with this sub­stance are not al­ways suc­cess­ful. On the oth­er hand, the cat­a­lyst of the break­down of H₂O₂ should be quite ac­tive - you can use cop­per am­mine or potas­si­um per­man­ganate. To make sure that the break­down of hy­dro­gen per­ox­ide takes place quick­ly, we rec­om­mend that you use a high con­cen­tra­tion of H₂O₂. Molecular structure of hydrogen peroxideģ0-50% hy­dro­gen per­ox­ide can be re­placed with hy­dro­gen per­ox­ide so­lu­tion that is sold in phar­ma­cies. In na­ture, Н₂О₂ is en­coun­tered in in­signif­i­cant quan­ti­ties – for ex­am­ple, in snow or rain­wa­ter.

The speed of break­down slows down in the cold, so the sub­stance can be stored for a long time in a frozen state - from mi­nus 0.5 de­grees Cel­sius. In ide­al con­di­tions, Н₂О₂ breaks down slow­ly, with a speed of 1% per month. Hy­dro­gen per­ox­ide is a non-com­bustible liq­uid that is fire- and ex­plo­sion-haz­ardous, and a strong ox­i­diz­er which en­ters into re­ac­tions with many sub­stances: hy­dro­gen per­ox­ide eas­i­ly breaks down into oxy­gen and wa­ter when ex­posed to light, and also when it comes into con­tact with re­duc­ing and ox­i­diz­ing sub­stances, in in­ter­ac­tion with an al­ka­line or on heat­ing. The molec­u­lar weight of hy­dro­gen per­ox­ide is 34.02, freez­ing point is 0.5 de­grees Cel­sius, and boil­ing point is 67 de­grees. It is 1.5 times heav­ier than wa­ter and can mix with it in any ra­tios. The sub­stance is also known as hy­droperite and per­hy­drol. Hy­dro­gen per­ox­ide is a trans­par­ent, col­or­less and slight­ly vis­cous liq­uid with­out taste or smell, which in large vol­umes has a bluish tinge. Cat­a­lysts can be com­pounds of iron, cop­per, man­ganese diox­ide, cobalt, cata­lase en­zymes and oth­er sub­stances The chem­i­cal char­ac­ter­is­tics of hy­dro­gen per­ox­ide This process ac­cel­er­ates from the ef­fect of light, cat­alyz­ers or from heat­ing. In wa­ter so­lu­tions, it is more sta­ble, but oxy­gen is con­stant­ly re­leased when the so­lu­tions are stored. In pure form, it is un­sta­ble, and eas­i­ly breaks down, with the process of­ten be­ing ac­com­pa­nied by an ex­plo­sion. Hy­dro­gen per­ox­ide is an un­sta­ble sub­stance.