PharmChem weak acids 
Name: Citric acid
Chemical Name: 2-hydroxypropane-1,2,3-tricarboxylic acid
Chemical Formula: C6H8O7
Chemical Structure:
pH: 4.18, 3.90, 3.57
Classification: Weak acid
Uses: It is a natural preservative/conservative and is also used to add an acidic or sour taste to foods and drinks. It is also used mainly as an acidifier, as a flavoring, and as a chelating agent.
Name: Vinegar acid
Chemical Name: Acetic acid or ethanoic acid
Chemical Formula: C2H4O2
Chemical Structure:
pH: 2.4
Classification: Weak acid
Uses: It is used as household vinegar and is mainly produced as a precursor to polyvinylacetate and cellulose acetate. Diluted acetic acid is often used indescaling agents. In the food industry, acetic acid is used under the food additive code E260 as an acidity regulator and as a condiment.
Name: Formic acid
Chemical Name: Methanoic acid, HCOOH
Chemical Formula: CH2O2
Chemical Structure:
pH: 3.47, 2.91, 2.38
Classification: Weak acid
Uses: Formic acid is a clear, colourless liquid with a pungent odour. It is a man-made chemical and is produced as a by-product in the manufacture of other chemicals such as acetic acid. Formic acid is principally used as a preservative and antibacterial agent in livestock feed.
Name: Hydrocyanic acid
Chemical Name: Formonitrile, Hydridonitridocarbon
Chemical Formula: HCN
Chemical Structure:
pH: 6.11, 5.62, 5.12
Classification: Weak acid
Uses: The volatile compound has been used as inhalation rodenticide and human poison, as well as for killing whales.
Name: Nitrous acid
Chemical Name: dioxonitric(III) acid
Chemical Formula: HNO2
Chemical Structure:
pH: 6.70
Classification: Weak acid
Uses: Nitrous acid is useful for destroying sodium azide solutions, which are toxic and potentially explosive. It can also be used to prepare diazonium salts, which combine with anilines and phenols to form brightly colored azo compounds.
Chemical Name: 2-hydroxypropane-1,2,3-tricarboxylic acid
Chemical Formula: C6H8O7
Chemical Structure:
pH: 4.18, 3.90, 3.57
Classification: Weak acid
Uses: It is a natural preservative/conservative and is also used to add an acidic or sour taste to foods and drinks. It is also used mainly as an acidifier, as a flavoring, and as a chelating agent.
Name: Vinegar acid
Chemical Name: Acetic acid or ethanoic acid
Chemical Formula: C2H4O2
Chemical Structure:
pH: 2.4
Classification: Weak acid
Uses: It is used as household vinegar and is mainly produced as a precursor to polyvinylacetate and cellulose acetate. Diluted acetic acid is often used indescaling agents. In the food industry, acetic acid is used under the food additive code E260 as an acidity regulator and as a condiment.
Name: Formic acid
Chemical Name: Methanoic acid, HCOOH
Chemical Formula: CH2O2
Chemical Structure:
pH: 3.47, 2.91, 2.38
Classification: Weak acid
Uses: Formic acid is a clear, colourless liquid with a pungent odour. It is a man-made chemical and is produced as a by-product in the manufacture of other chemicals such as acetic acid. Formic acid is principally used as a preservative and antibacterial agent in livestock feed.
Name: Hydrocyanic acid
Chemical Name: Formonitrile, Hydridonitridocarbon
Chemical Formula: HCN
Chemical Structure:
pH: 6.11, 5.62, 5.12
Classification: Weak acid
Uses: The volatile compound has been used as inhalation rodenticide and human poison, as well as for killing whales.
Name: Nitrous acid
Chemical Name: dioxonitric(III) acid
Chemical Formula: HNO2
Chemical Structure:
pH: 6.70
Classification: Weak acid
Uses: Nitrous acid is useful for destroying sodium azide solutions, which are toxic and potentially explosive. It can also be used to prepare diazonium salts, which combine with anilines and phenols to form brightly colored azo compounds.