THE SPECTROGRAPHIC DETERMINATION OF LITHIUM, POTASSIUM AND BARIUM IN CALCIUM BASE MATERIALS BY CARRIER DISTILLATION
Technical Report
·
OSTI ID:4235072
The calcium metal or compound after conversion to the high bulk density oxide is mixed with 7% of its weight of pure sodium chloride and placed in a deep graphite cup. It is then heated in a d-c arc at 10 amps when the sodium chloride distils accompanied by the alkali metals, leaving the bulk of the calcium oxide behind in the cup. The arc is aligned with a Hilger large automatic glass/quartz spectrograph, using the glass train, and the spectrum recorded on a photographic plate in the usual manner, the resultant plate being examined visually in a comparator or for greater accuracy the density of the lines are measured using a Hilger nonrecording microphotometer. (auth)
- Research Organization:
- Gt. Brit. Springfields Works, Springfields, Lancs, England
- NSA Number:
- NSA-13-018920
- OSTI ID:
- 4235072
- Report Number(s):
- SCS-M-316
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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