if a tin can is dented the layer of tin cracks and the layer of steel shows what reaction might happen?

Answer 1

In the tin plated cans, if the tin layer cracks, corrosion (electro-chemical) reaction will start with steel layer as anode and tin layer as cathode and the food acids (e.g. tomato puree) will act as wonderful medium. (Tin is higher up in the galvanic series with respect to mild steel). Eventually the reaction will eat away the steel.

Answer 2

Lets start at the beginning, it is NOT a tin can, it is a tin plated steel can,which was designed to preserve the food which is sealed within. The idea that a dented tin is not desireable is because the tin plate may lift at the dent site exposing the steel which will be rusted by the contents.Eventually the steel will become perforated.

Answer 3

The steel generally rusts.

If this happens on the outside, the steel would eventually oxidise with exposure to humidity in the air.

If this happens on the inside of the can, the speed of the oxidisation may be accelerated by the contents of the can. For instance, chopped tomatoes in juice is quite acidic and this can accelerate the oxidisation.

For that reason, never buy canned products where the can is dented.

Answer 4

neutralization of sterile forte, which could result in a compacitation of the molecules therefore a chain reaction would create a mechinized steel failure allowing air to penetrate the can.

Answer 5

Oxidisation (rust)