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Contaminants and Impurities in Salts
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What are contaminants?
Substances
that shouldn't be in salt
What distinguishes contaminants from impurities?
Contaminants
:
Origin:
External sources
Presence:
Unintentional
Effect: Lower salt
purity
Impurities:
Origin:
Naturally part of salt
Presence: Occur naturally
Effect:
Lower salt quality
What happens to salt crystals when contaminants are present?
They grow slower and have
irregular
shapes
What is one effect of contaminants on crystal purity?
Contaminants
can
become
included
in crystals
How do impurities affect crystal formation?
They disrupt the
arrangement of ions
What are the effects of contaminants and impurities on salt crystals?
Contaminants:
Source:
External
Effect: Slows growth; crystals become smaller
Impurities:
Source:
Natural
to salt
Effect: Slows growth; crystals become smaller
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