Barium synthesis
1synthesis methods
- Product Name:Barium
- CAS Number:7440-39-3
- Molecular formula:Ba
- Molecular Weight:137.33
The minerals are BaSO4 and BaCO3. Metal barium is obtained by reducing the barium oxide at a high temperature in vacuum with Al or Si or by doing electrolysis with the Hg cathode and evaporating Hg of amalgam formed at the process slowly to segregate Ba. To obtain vacuum evaporated films, direct heating with the conical basket of W, Ta, Mo, Nb, Ni, Fe, chromel, etc., or with the boat of Ta, Mo is used. Ba reacts with alumina. The rate of evaporation is 2.28×10-4 g/cm2 s with the evaporation temperature of 629 ℃.
1304-29-6
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7440-39-3
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Yield:-
Reaction Conditions:
with Ti or Zr or Hf or Th;oxides of La or of Ce or of Th in neat (no solvent);reduction of BaO2 with Ti or Zr or Hf or Th dild. with oxides of La or of Ce or of Th;;
References:
[Gmelin Handbuch der Anorganischen Chemie,Gmelin Handbook: Ba: SVol., 10, page 169 - 172] FR868299,1941,A [C. I,1942,p. 2049]