July 01, 2022, 07:16:43 PM
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Topic: what does it mean by "leach"  (Read 143 times)

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Offline shvcko99

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what does it mean by "leach"
« on: June 02, 2022, 01:56:32 AM »
In most cases I find that the term "leach" is used with food, e.g. leach into food.

What does the term "leach" actually mean? Could something leach into non-food? Is it the same as evaporation or sublimation?

What is the condition that would favor the process of "leach"?


Offline Hunter2

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Re: what does it mean by "leach"
« Reply #1 on: June 02, 2022, 04:00:03 AM »
Leach means to clean a container, machinery, and others by using a chemical like a  base, acid, bleach, etc.
And it means to remove something from another material.

Offline Corribus

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Re: what does it mean by "leach"
« Reply #2 on: June 02, 2022, 08:48:41 AM »
In the context the thread opener uses it, leaching means the diffusion/transfer of some substance contained within one phase (area/region) to another phase (area/region). For instance, if a lead pipe is placed in the environment, lead atoms may leach (transfer) from the pipe into the environment. Frequently this occurs because of a concentration differential between the two environments - substances tend to go from regions of high concentration to those of low concentration. It may be strictly a surface phenomenon or diffusion from the interior of a solid, as frequently occurs with substances contained in polymers.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

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