science-softCon uv/vis+ spectra data base;	www.uv-spectra.de; (C) science-softCon 2017

Substance: barbituric acid			Other Names: pyrimidine-2,4,6(1H,3H,5H)-trione; 6-hydroxyuracil

Formula: C4H4N2O3				CAS-No.: 67-52-7	PubChem: CID 6211

Study: uv absorption spectra


Authors: J.R. Loofbourow,  M.M. Stimson 

Title: Ultra-violet absorption spectra of nitrogenous heterocyclic compounds. Part II. Effect of pH and irradiation on the spectrum of barbituric acid

Journal/Source: J. Chem. Soc.,0, 1275-1277, (1940); doi:  10.1039/JR9400001275


Data: diagram, table

Energy/Wavelength range: ~ 220 - 290 nm

Resolution: 

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 

Phase: aqueous solution (buffered)

pH: 3 - 10


Comments: Maximum extinction occured at pH 7.

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