1, tea

Scalding tea leaves with hot water, first rubbing the tea leaves on the rusty places, and then rubbing the rusted places with the tea leaves scalded with hot water several times can eliminate the rust of iron products.

2. Edible oil

The kitchen knife is rusty, so you can gently wipe it with a sponge dipped in cooking oil. Rust can be removed. If the iron door lock is rusted, you can also drop a little lubricating oil into the keyhole to remove rust.

3. Coke

The tableware at home is rusty, so you can soak it in coke or gently wipe it with a rag, because coke contains carbonic acid and acid can remove rust.

4. Salt and lime juice

Sprinkle salt on the rusty place, cover it thoroughly, and then pour lime juice on it. Try to use all available lime juice, let it stand for 2 to 3 hours and then clean the mixture. Wipe off the mixture with lime peel.

5. Chemical rust remover

Usually made of phosphoric acid or oxalic acid, direct contact will harm the skin. Please take protective measures when using chemicals to decompose rust.

6, potato skin

Dip potato skin in a small amount of salt and apply it to the rusty place of the iron pan, and the rust will be easily removed.

7. vinegar

Vinegar also contains acid, which can be decomposed with rust. However, vinegar will continue to corrode iron after chemical reaction, making the surface of iron no longer smooth and easier to rust. Therefore, hot vinegar should be used when choosing vinegar, and the cleaning time should not be too long to prevent iron from being corroded.

Extended data:

Maintenance methods of jewelry:

Jewelry is a precious commodity, so you must be careful when wearing it. Not causing damage will not only bring huge economic losses to the owner, but also bring adverse effects to the owner's psychology. In addition, beading will also affect the appearance due to dust accumulation.

1, to prevent damage

Although gems are mostly hard substances in the world, they are difficult to be carved by any other substance. However, gems have structural defects such as cleavage and cleavage. Some precious gems (such as opal) are not high enough in hardness, while others are high in hardness but low in toughness, so they are easily damaged by strong collision. Therefore, the protection of jewelry is to prevent the impact of hard objects or external forces. It is not suitable to wear jewelry when doing sports, doing heavy work and cooking.

2, often clean

Some of its jewels are lipophilic, which will absorb skin or foreign grease (including some cosmetics) if worn for a long time, or cause dust accumulation for a long time, which will seriously affect its brightness, resulting in poor quality but clean jewels that will look more eye-catching than unclean high-quality gems. Therefore, keeping the gem clean is the secret of adding color to gem ring.