Crossword puzzle clue "essential substances"

Here are the possible solutions for essential substances clue

Answer
Clue
Relevancy
oils
Clue
"Essential" substances
Definition
OIL, to lubricate with a greasy substance
traceelements
Clue
Substances essential, in minute quantities, to nutrition
abrasives
Clue
Polishing substances
Definition
ABRASIVE, an abrasive substance
acids
Clue
Corrosive substances
Sour substances
Corosive substances
Substances with low pH
Substances used by etchers
Definition
ACID, a type of chemical compound

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