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Food safety and quality
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| Flavouring |
Citric acid |
| Synonym(s) |
|
| Latest JECFA evaluation |
2000 (Session 55) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
2-Hydroxy-1,2,3-propane-tricarboxylic acid, monohydrate |
| JECFA number |
218 |
| CAS number |
77-92-9 |
| FEMA number |
|
| COE number |
|
| FLAVIS number |
|
| Molecular weight |
210.14 |
| Chemical formula |
C6H10O8 |
| Physical form/odour |
White or colourless, odourless, crystalline solid. Monohydrate effloresces in dry air |
| Solubility |
Very soluble in water, slightly soluble in ether |
| Solubility in ethanol |
Freely soluble |
| Boiling point (°C) |
NA |
| Assay min % |
99.5% on an anhydrous basis |
| Acid value max |
|
| Refractive index |
NA |
| Specific gravity |
NA |
| Other requirements |
Melting point: 152-154° for anhydrous form, about 100 for the monohydrate; positive test for citrate |
| ID Test |
Positive test for citrate |
| Spectrum |
 
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