Citric acid
- Formula: C6H8O7
- Molecular weight: 192.1235
- IUPAC Standard InChI: InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
- IUPAC Standard InChIKey: KRKNYBCHXYNGOX-UHFFFAOYSA-N
- CAS Registry Number: 77-92-9
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1,2,3-Propanetricarboxylic acid, 2-hydroxy-; Aciletten; Citretten; Citro; 2-Hydroxy-1,2,3-propanetricarboxylic acid; β-Hydroxytricarballylic acid; Anhydrous citric acid; Citric acid, anhydrous; Kyselina citronova; Kyselina 2-hydroxy-1,2,3-propantrikarbonova; 3-Carboxy-3-hydroxypentane-1,5-dioic acid; Chemfill; F 0001 (polycarboxylic acid); Hydrocerol A; NSC 30279; NSC 626579; K-Lyte DS (Salt/Mix); K-Lyte (Salt/Mix); Citraclean (Salt/Mix); K-Lyte/Cl (Salt/Mix)
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IR Spectrum
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Coblentz Society, Inc.
Condensed Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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| Owner | COBLENTZ SOC. Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Source reference | COBLENTZ NO. 05104 |
| Date | 1963/03/07 |
| Name(s) | 2-hydroxy-1,2,3-propanetricarboxylic acid CITRIC ACID |
| State | SOLID (0.5 mg / 200 mg KBr DISC) |
| Instrument | PERKIN-ELMER 21 (GRATING) |
| Instrument parameters | FILTER AT ABOUT 10 MICRONS |
| Path length | SPECTRAL FEATURE AT 996 CM-1 IS AN ARTIFACT CAUSED BY FILTER CHANGE |
| Resolution | 2 |
| Sampling procedure | TRANSMISSION |
| Data processing | DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY |
| Melting point | 153 C |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
No reference data available.
Notes
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- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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