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Anonymous users2024-01-24Most of the white powders that do not repel insects are some alkaline substances used to kill the larvae of some insects, or some bacteria, while the flower water is neutral, mainly to prevent mosquitoes and relieve itching, even if a chemical reaction occurs, it will not have any effect on the body.
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Anonymous users2024-01-23Normally, the probability of reacting with daily objects to produce highly toxic substances is too low, and if they are not highly toxic, a small amount of toxic substances will not pose a threat to the human body.
Take a glass bottle full of water to the toilet first, after entering the toilet, pour out the water in the bottle, and then close the lid after a while.
Pig-pulled feces should not be put in the toilet by chemical methods, but should be treated biochemically. >>>More
You're so bored, strong acids and strong alkalis are fine.
Sanitary ball.
Balls made of naphthalene, white, with a peculiar smell, are placed in clothing to prevent insect damage. It is also called a health pill, and in some places it is called mothball. Mothballs containing naphthalene are mostly white, have a pungent smell, and sink in water; Natural mothballs, on the other hand, are smooth, colorless or white crystals with a fragrant smell that float in water. >>>More
Chlorine, Cl2, ammonia, NH3, methane, CH4, CO2, O2, N2, etc.