Common acids

• Mineral acids

1. Hydrogen halides and their solutions, such as hydrochloric acid (HCl) and hydrobromic acid (HBr)Sulfuric acid (H2SO4)
2. Nitric acid (HNO3)
3. Phosphoric acid (H3PO4)
4. Chromic acid (H2CrO4)
5. Fluoroantimonic acid
6. Fluorosulfuric acid
7. Fluoroboric acid
8. Perchloric acid

• Sulfonic acids

1. Methanesulfonic acid (aka mesylic acid) (MeSO3H)
2. Ethanesulfonic acid (aka esylic acid) (EtSO3H)
3. Benzenesulfonic acid (aka besylic acid) (PhSO3H)
4. Toluenesulfonic acid (aka tosylic acid, or (C6H4(CH3) (SO3H))
5. Triflic acid

• Carboxylic acids

1. acetic acid
2. citric acid
3. formic acid
4. gluconic acid
5. lactic acid
6. oxalic acid
7. tartaric acid

• Vinylogous carboxylic acids

1. ascorbic acid
2. Meldrum's acid