Acids and bases
Acetic acid vs citric acid
Acetic acid (C2H4O2, CAS 64-19-7) and citric acid (C6H8O7, CAS 77-92-9) are both listed under acidulants and acidity regulators.
Acetic acid has a molar mass of 60.05 g/mol, citric acid 192.12 g/mol.
Measured melting points are 16.6 °C for acetic acid and 153 °C for citric acid.
Acetic acid carries the GHS signal word Danger, citric acid Warning.
On CompoundList, 1,107 suppliers list acetic acid and 1,149 suppliers list citric acid.
Data last updated 7 October 2026
 |  | |
|---|---|---|
| Identity | ||
| Name in our database | Acetic acid | Citric acid |
| CAS number | 64-19-7 | 77-92-9 |
| Molecular formula | C2H4O2 | C6H8O7 |
| Molar mass | 60.05 g/mol | 192.12 g/mol |
| IUPAC name | acetic acid | 2-hydroxypropane-1,2,3-tricarboxylic acid |
| EC number | 200-580-7 | 201-069-1 |
| Physical properties | ||
| Appearance | Clear, colorless liquid | Crystals, monoclinic holohedra, crystallizes from hot concentrated aqueous solution |
| Melting point | 16.6 °C | 153 °C |
| Boiling point | 117.9 °C | Decomposes |
| Density | 1.0446 g/cm³ at 25 °C | 1.665 g/cm³ at 20 °C |
| Flash point | 39 °C | 100 °C |
| Solubility | Miscible with water | In water, 3.83 × 10⁺⁵ mg/L at 25 °C |
| LogP (octanol/water)Computed from the structure | 0.09 | -1.25 |
| Safety (GHS) | ||
| Signal word | Danger | Warning |
| Pictograms | ||
| Hazard statements |
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| UN number | UN 2789 | Not recorded |
| Uses and classification | ||
| Uses and functions |
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| Category | Food and feed additives › Acidulants and acidity regulators | Food and feed additives › Acidulants and acidity regulators |
| HS code | 291521Acetic acid | 291814Citric acid |
| Market on CompoundList | ||
| Suppliers | 1,107 suppliers | 1,149 suppliers |
| Supplier countries | 73 countries, most in India, United States, China | 85 countries, most in India, United States, China |
| Price rangeOnly prices set by suppliers who manage their own profile | Price on request | Price on request |
Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.
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