Citric acid
SIAL/C0759 - 99%
Synonym: 2-
CAS Number: 77-92-9
Empirical Formula (Hill Notation): C6H8O7
Molecular Weight: 192.12
EC Number: 201-069-1
MDL Number: MFCD00011669
Linear Formula: HOC(COOH)(CH2COOH)2
Product Type: Chemical
| assay | 99% |
| bp | 200 °C/at 1.013 hPa (decomposition) |
| concentration | ≤100% |
| density | 1,67 g/cm3 at at 20 °C |
| expl. lim. | 8 %, 65 °F |
| form | crystals |
| functional group | carboxylic acid |
| hydroxyl | |
| InChI | 1S/C6H8O7/c7-3(8)1-6(13,5 |
| InChI key | KRKNYBCHXYNGOX-UHFFFAOYSA |
| mp | 153-159 °C (lit.) |
| pH | ca.1,7-at 100 g/l-at 20 °C |
| pKa (25 °C) | (1) 3.13, (2) 4.76, (3) 6.40 |
| pKa | (1) 3.13, (2) 4.76, (3) 6.4 |
| Quality Level | 200 ![]() |
| SMILES string | OC(=O)CC(O)(CC(O)=O)C(O)= |
| solubility | water: soluble 383 g/L at 25 °C |
| vapor pressure | ≤ 0.1 hPa ( at 25 °C) |
| Application: | Citric acid can be used as a reactant to synthesize:• Trialkyl citrates via sulfuric acid-catalyzed esterification with aliphatic alcohols C2-C5. • Biodegradable thermoset polymer via catalyst-free polycondensation reaction. It can also be used as a catalyst to synthesize amido alkyl naphthols by reacting 2-naphthols, aldehydes, and amides/ureas. |
| General description: | Citric acid is a natural component widely usedin many industrial applications such as chelation, buffering, pH adjustment,and derivatization. It can also be used as a reagent in condensation, acidcatalysis, cycloaddition, deprotection, and decarboxylation reactions. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 5 kg in poly drum |
| Symbol | GHS07 |
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264 - P280 - P305 + P351 + P338 - P337 + P313 |
| Hazard Codes | Xi |
| Risk Statements | 36 |
| Safety Statements | 26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99% |
| bp | 200 °C/at 1.013 hPa (decomposition) |
| mp | 153-159 °C (lit.) |
| Density | 1,67 g/cm3 at at 20 °C |
| UNSPSC | 12352100 |


