Can oxalic acid be used to remove the scale from kettle?

Take 20-30ml oxalic acid and pour it into an empty thermos. Shake the thermos slightly, and you will hear a sneer inside. This means that the scale is dissolving. Look through the bottle mouth to see where there is scale, and then transfer the oxalic acid solution there until it is completely dissolved. Be careful not to splash it in your eyes. Pour out the decomposition solution and wash it twice with clear water.

Extended data:

Precautions for the use of thermos bottles:

1, the water injected into the thermos bottle should not exceed the highest water level line, nor should it be too little, because overflow or empty burning can easily cause the kettle to malfunction.

2. When filling the thermos bottle with water, first connect the power cord with the kettle body, and then the user plugs the other end into the power socket for heating. For electric kettle with switch or automatic electric kettle, unplug the switch and connect the kettle to the power supply.

3. The electric kettle is a kind of high-power electric appliance. Please read the instructions carefully before using the electric kettle and choose the appropriate power socket. The socket shall be used independently and shall not be used together with other high-power appliances.

4. The power plug should be kept dry and clean. Do not get wet with water or put it near the fire source to avoid leakage or burning.

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