Common compounds of thorium: thorium dioxide, thorium trifluoride, thorium tetrafluoride, thorium tetrachloride, thorium triiodide, thorium diiodide,
thorium tetraiodide, thorium nitrate, thorium oxalate, thorium carbide, thorium sulfides, thorium nitride, thorium oxinate, etc.
The only common thorium oxide formula is ThO2.
Thorium, with the chemical symbol Th, is the chemical element with the atomic number 90.
+4 is the most common and the most stable oxidation number
Thorium (Th).
Thorium is a tetravalent element. Thorium react slowly with water; thorium can react with concentrated nitric acid and hydrogen chloride. Thorium can react with the majority of other chemical elements. The Pauling electronegativity of thorium is 1,3.
The only common thorium oxide formula is ThO2.
The common minerals of thorium are: monazite, thorianite, thorite.
The concentration of thorium in the Earth crust is cca. 6 ppm.
Hazards and Health Considerations: Thorium presents both a toxic and radiological hazard. Toxicologically, it causes heavy metal poisoning similar to lead or the uranium isotopes. Biologically, thorium accumulates in the skeletal system where it has a biological half-life of 200 years, the same as plutonium. An M 17 protective mask and standard anti-contamination clothing will adequately protect against thorium.
Thorium carbide is a systematic unique name in chemistry.
When not mixed with clay, about 0.02% (depending on the type of thorium compound)of ingested Thorium is absorbed into the body but since Thorium is strongly adsorbed by clay, the absorption of ingested Thorium mixed with clay soil is negligible, much less than 0.02%.
Each chemical compound formed is different !
Sulfur is of course more common.
Thorium, with the chemical symbol Th, is the chemical element with the atomic number 90.
Thorium and fluorine Thorium trifluoride - ThF3 Thorium tetrafluoride - ThF4
+4 is the most common and the most stable oxidation number
Thorium don't smell.