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How to use products like hydrogen peroxide sterilization craft beer equipment
by:Trano
2020-06-12
The physical and chemical properties, stability, hydrogen peroxide and disinfection and sterilization principle of hydrogen peroxide, scientific name, hydrogen peroxide, molecular formula for H2O2, molecular weight is 34.
01, colorless transparent liquid, soluble in water, alcohol and ether, and high concentration of corrosive, exposure to place, will gradually decomposed into oxygen and water, the density of 30% hydrogen peroxide to 1.
11 g/cm3, melting point -
0.
89 ℃, boiling point of 151.
4℃。
Have strong sterilization effect, in alkaline conditions, the effect is more obvious.
Stability of hydrogen peroxide is a treated with efficiency and stability of colorless transparent liquid, odorless, non-toxic, due to the synergy of hydrogen peroxide and synergistic agent, greatly improve the ability of sterilization, kill virus and speed, at the same time its sterilization effect more longer.
Its sterilization principle is the use of reactive oxygen species strong oxidation ability, destruction of microorganisms in plasma, so as to achieve the aim of kill microbes and disinfection.
Stability of hydrogen peroxide sterilization characteristics of broad-spectrum, highly effective, long-term, upon completion of the sterilization process, decomposed into oxygen and water, and does not produce toxic residue, need not wash with water, no pollution to the environment, is a kind of environmental protection disinfectant.
Second, the main factors which influence the stability of hydrogen peroxide main factors which influence the stability of hydrogen peroxide has the following several aspects: 1, temperature.
Hydrogen peroxide solution at lower temperature and higher purity, is relatively stable.
When heated to 153 ℃ or higher temperature hydrogen peroxide, fierce explosive decomposition will occur.
At lower temperatures, the decomposition of hydrogen peroxide decomposition reaction is: flat, 2 h2o2 & rarr;
2H2O+O2↑
+ 46.
94kcal。
2, PH value.
The medium ph value has a great influence to the stability of the hydrogen peroxide.
Under acid condition, and the nature of the hydrogen peroxide solution is very stable, oxidation reaction speed is slower;
In alkaline medium, hydrogen peroxide solution is not very stable, break down quickly.
3, impurities.
Impurities are important factors which influence the stability of hydrogen peroxide.
Many metal ions, such as ferrous iron ions and bivalent ions and bivalent manganese copper ions, trivalent chromium ions will promote the decomposition of hydrogen peroxide.
Usually add a lot of in hydrogen peroxide stabilizer to suppress impurities, the catalysis of suppression principle is the chelation and reduction.
The trace of stabilizing agent, such as sodium stannate, sodium pyrophosphate, or eight
Hydroxyquinoline through reduction and complexation to inhibit the decomposition of hydrogen peroxide.
4, the light.
Wavelengths between 3200 ~ 3800, the speed will accelerate the decomposition of hydrogen peroxide.
In order to improve the stability of the hydrogen peroxide solution, to light, heat, metal ion content and pH value control.
And stability because of high purity hydrogen peroxide, containing metal ions impurities such as very few, therefore has the very good stability.
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