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Anonymous users2024-01-24CA vinegar contains acetic acid, which can react with sodium carbonate to produce carbon dioxide, but does not react with sodium chloride in table salt, so vinegar can distinguish soda ash from salt;
Because the silver nitrate solution can react with hydrogen chloride to form a silver chloride white precipitate and will not react with hydrogen, AgNO3 can be used
The solution is able to verify H2
a small amount of HCl impurities mixed in;
Because sodium hydroxide can react with both carbon dioxide and hydrogen chloride, CO2 cannot be removed by NaOH solution
HCl in gas;
According to the law of the reaction between metal and salt solution: the metal with strong activity can replace the metal with weak activity from its salt solution; It can be seen that iron can replace the copper in copper sulfate, so FeSO4 can be removed with excess iron powder
CuSO4 in solution
You use the bowl as a test tube, and use vinegar instead of lime water for HCL, so you have to go outside and find some quicklime and add water, just pay attention to clarify. >>>More
Chemical laboratory countertopsThe products of Vollebo VOLAB manufacturers usually use phenolic resin composite veneer countertops, phenolic resin solid board countertops, epoxy resin countertops, ceramic countertops, etc. You can go to the website to see the specifics. Hope that helps.
Ventilation, anti-corrosion, humanized design, there are more and more young people in the laboratory now, and there are many furniture that are also pursuing visual effects! Specific needs to be communicated face-to-face! Hope for the opportunity to serve you.
Find the materials you want to experiment with (white vinegar, eggshells); >>>More
Of course, you can use it, the surface of the chemistry lab table is coated with a layer of anti-corrosion material, which will not cause any harm to your health. If you're afraid that harmful drugs will stick there, you can wash it with ordinary disinfectant and leave it in the sun for four hours.