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EC number: 701-028-2
CAS number: -
The criterion for effect was growth inhibition based on a decrease in
the area under the growth curves for each concentration relative to
controls. The test medium contains 0.65 mg/L phosphate. Complete
hydrolyses of the test substance (100 mg/L) would yield approximately 12
mg/L of phosphorous acid. The cell density in the highest test
concentration at 72 h was 344 % greater than the controls. This
represents approximately 1.5 additional doublings of the cell population
exposed to the hydrolyzed TNPP solution when compared to the controls.
The result indicates that hydrolysis of TNPP causes growth stimulation
due to the liberation of phosphorous.
There were no effects on algae up to 100 mg/L of TNPP (well in excess of
the TNPP water solubility limit).
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