Acetic Acid

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Acetic Acid
Common Name(s): Ethanoic Acid


Molecular Formula: CH3COOH
Used For: Dissolving calcium carbonate deposits

Increasing potency of kalkwasser

Killing Aiptasia sp.

Caution: Corrosive

Don't inhale fumes

Avoid contact with skin and eyes

Material Safety Data Sheet: Acetic acid


Acetic acid is a weak acid, with a pKa of 4.8. Even though it is referred to as a weak acid, due to it's high pKa, in it's concentrated form it is highly corrosive.

Acetic acid is commonly available in the diluted form of Vinegar, which contains around 4 to 8% acetic acid. For this reason it can be handled relatively safely without concern for acid burns.

Vinegar can be used as a cleaning agent (it will dissolve calcium carbonate deposits on surfaces), increasing the potency of saturated calcium hydroxide solutions (kalkwasser), and as an method of killing some pest anemones (Aiptasia).