SPECTROGRAPHIC DETERMINATION OF RARE EARTHS IN CALCIUM FLUORIDE (PREPARATION)
Technical Report
·
OSTI ID:4248829
Calcium fiuoride is decomposed by perchloric acid and rare earths are precipitated on ferric hydroxide by addition of ammonia and finally precipitated by ammonia in the presence of a standard amount of iron. The oxides obtained by ignition are examined spectrographically. The method is based on normal spectrochemicall procedure. (auth)
- Research Organization:
- Gt. Brit. Springfields Works, Springfields, Lancs, England
- NSA Number:
- NSA-13-016781
- OSTI ID:
- 4248829
- Report Number(s):
- SCS-M-308
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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