science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: sodium hydrogen phosphate			Other Names: disodium phosphate

Formula: Na2HPO4					CAS-No.: 7558-79-4	PubChem: CID 24203

Study: uv absorption spectra

                
Authors: M. Halmann, I. Platzner

Title: The Photochemistry of Phosphorus Compounds. Part II. Far-ultraviolet Absorption Spectra of some Phosphorus Oxyanions in Aqueous Solution

Journal/Source: J. Chem. Soc., 1440-1449, (1965); DOI: 10.1039/JR9650001440 


Data: table, diagram 

Energy/Wavelength range: 180 - 320 nm

Resolution: 

Temperature: 297 K; 318 K; 338 K; 351 K

Temperature dependence: yes

Pressure/Concentration: 

Phase: solution (water, deuterium oxide)

pH:


Comments: The absorption spectra of solutions of potassium dihydrogen phosphate, potassium and sodium hydrogen phosphates, tetrasodium pyrophosphate, 
sodium tripolyphosphate, and sodium trimetaphosphate in solvents containing water or deuterium oxide, in the range 320-180  nm, are composed of both 
weak bands  (above 200 nm).
Effects of temperature and solvents are investigated.

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