So why is barium carbonate and barium sulphate, and silver halides insoluable?
2.
We now know that the " Bolognian Stone " was a piece of barite ( barium sulphate ).
3.
There are diagnostic tools mostly involving the ingestion of barium sulphate to investigate disorders of the GI tract.
4.
Desmids possess characteristic crystals of Barium sulphate at either end of the cell which exhibit a continuous Brownian type motion.
5.
The precipitate in this case is of course Barium Sulphate .-- Fangz 16 : 02, 28 Sep 2004 ( UTC)
6.
The plastic film, known as OPUR foil, is hydrophilic and is made from polyethylene mixed with titanium dioxide and barium sulphate.
7.
For example, to take UV measurements, quartz rather than glass lenses, optical fibers, Teflon diffusers, and barium sulphate coated integrating spheres are often used to ensure accurate UV measurement.
8.
The Harptree Beds show varying degrees of silica-enrichment, and also contain traces of other minerals, such as limonite and yellow ochre ( hydrous ferric oxides ), barite ( barium sulphate ), sphalerite ( zinc sulphide ) and galena ( lead sulphide ) ."
9.
The mineralisation of the fault shows some vertical zonation, with baryte ( barium sulphate ) in the upper part of the vein, } } and small amounts of both blende ( sphalerite, zinc sulphide ) and chalcopyrite ( copper-iron sulphide ) at deeper levels.
10.
From this fluid, catalysed by the hydrocarbons, compounds such as galena ( lead sulphide, PbS ), sphalerite ( zinc sulphide, ZnS ), baryte ( barium sulphate, BaSO 4 ) and fluorspar ( calcium fluoride, CaF 2 ) were precipitated as solid crystals.
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