The uranium was present in the form of ammonium diuranate associated with ferric hydroxide as solids in suspension, and to the extent of 300 ppm by weight.
Precipitation methods using ferric sulphate can deal with phosphates, but it is very expensive.
It often contains ferric and ferrous salts, sulphates of aluminium, calcium, magnesium and even free sulphuric acid.
He died from cancer caused by contact with ferric oxide dust.
Could millennium money contribute to a new bridge or tunnel instead of being spent on an unnecessary riverside ferric wheel?
The spectral character of ferric oxide, oxyhydroxide and oxyhydroxysulphate minerals vary depending on their structure and could be formed in layers in mats to the benefit of multiple phototrophic organisms.
After jarosite precipitation, an arid environment must have prevailed, as jarosite becomes unstable and rapidly decomposes to ferric oxyhydroxides in the presence of new liquid water.
These anoxigenic photosynthesis reactions probably contributed to the formation of some oxidized ferric iron that may have played a role in early oxygenic photosynthesis and changes in the atmosphere.
