barium salt take 10ml of this product, add 2 drops of dilute sulfuric acid, and turbidity will not occur within 10 minutes.Consumption of sodium hydrogen titration solution (0.lmol/L) should not exceed 1.0. acidity: take 10ml of this product, add several drops of phenolphthalein indicator solution, and titrate to light red with sodium hydroxide titration solution (0.lmol/L).take 1ml of this product, add 10ml of water and 1 drop of dilute sulfuric acid, add 2ml of diethyl ether and several drops of potassium dichromate solution, shake, ether will appear blue.This product is a colorless and clear liquid Odorless or similar to the odor of the gas Meet the oxide or reduction of rapid decomposition and foam occurs. This product contains hydrogen peroxide (H202) should be 2.5% ~ 3.5%(g/ml). Each 1 ml of potassium permanganate titration solution (0.02mol/L) is equivalent to 1.701mg of h202. Take 2ml of this product, accurately weigh it, put it in a 200ml bottle, dilute it to the scale with water, and shake it well Take 10ml for precise measurement, put it in an Erlenmeyer flask, and add 20ml of dilute sulfuric acid, titrate with potassium permanganate titrant (0.02mol/L). nonvolatile matter 10ml of this product was taken, dried on a water bath, and dried at 105☌ to constant weight, and the remaining residue should not pass 15mg.stabilizer take 100ml of this product, add chloroform-ether (3:2) mixture extraction 3 times (50ml for the first time, 25ml for the second and third times), the solvent was removed from the combined extracts at room temperature and the residue was dried in a desiccator for 2 hours, leaving no residue (50mg, 0.05%).barium salt take 10ml of this product, add 2 drops of dilute sulfuric acid, and no turbidity will occur within 10 minutes.Consumption of sodium hydroxide titration solution (0.lmol/L) should not exceed 1.0. acidity take 10g of this product, add water to 100ml, add several drops of phenolphthalein indicator solution, and titrate to light red with sodium hydroxide titration solution (0.lmol/L).take this product, add sodium hydroxide solution to make it alkaline, heat, that is, decomposition, bubble boiling and release oxygen.take 0.1ml of this product, Add 10ml of water and 1 drop of dilute sulfuric acid, add 2ml of diethyl ether and several drops of potassium dichromate solution, shake, the ether layer is blue.This product is a colorless clear liquid Odorless or ozone-like odor Oxide or reductant that is rapidly decomposed and foam, light-prone deterioration. This product contains hydrogen peroxide (H202) should be 26.0% ~ 28.0%(g/g). Not co-stored with oxidizing substances such as organic and inorganic substances. Hydrogen peroxide should be avoided from contact with certain inorganic agents and away from combustibles. A gas phase containing 90% H202 is safe as long as it is kept below 115 °c. Its explosive limit concentration at atmospheric pressure is about 26 rnourn3. The vapor-phase hydrogen peroxide can undergo an explosion under one condition. Products with a concentration higher than 86% can only be exploded in the presence of a high energy source.
![chemical formula for hydrogen peroxide chemical formula for hydrogen peroxide](http://www.uspbpep.com/usp28/v28230/uspnf/pub/images/v28230/g-73.gif)
![chemical formula for hydrogen peroxide chemical formula for hydrogen peroxide](https://structimg.guidechem.com/2/14/692773.png)
The concentration of less than 86% of industrial hydrogen peroxide, as long as the conditions meet the requirements, at room temperature is not explosive. A large amount of water should be used to rinse the contact areas of the body. The concentration limit of the short-term exposure of the human body to hydrogen peroxide vapor is 75mg/kg, and when the concentration exceeds lOOmg/kg, it is life-threatening. The content of more than 50mg/kg can strongly stimulate the eyes and mucous membranes, and train the respiratory organs.
![chemical formula for hydrogen peroxide chemical formula for hydrogen peroxide](http://www.chem.ucla.edu/~harding/IGOC/H/hydrogen_peroxide01.png)
Content in more than 30% of the solution in contact with the skin, will make it white and tingling Contact with the eyes can cause inflammation, and even Burns. High concentration of hydrogen peroxide solution and vapor have strong irritation and corrosive effect on human body.