CHEMICAL METHODS FOR THE DETERMINATION OF BORON IN REACTOR MATERIALS. PART I. ION-EXCHANGE SEPARATION OF BORON FROM COKES, PITCHES AND GRAPHITES AND ITS COLORIMETRIC DETERMINATION BY THE CURCUMIN-TRI-CHLORACETIC ACID METHOD
Technical Report
·
OSTI ID:4819704
A procedure has been standardized for the determination of boron in cokes, pitches, and graphites. The method consists of fixing the boron present in the sample as calcium borate, ion-exchange separation of boric acid from the associated cations, and the colorimetric determination of boron using the curcumin-trichloracetic acid method. Sulfur which is usually present in pitches and cokes is expected to be oxidized to sulfate during the fixation of boron and hence its effect on the colorimetry has been studied. Application of the procedure to the determination of 0.50 and 1.00 microgram amounts of boron, has given coefficients of variation of l0.0 and 6.7% respectively. (auth)
- Research Organization:
- India. Atomic Energy Establishment, Trombay
- NSA Number:
- NSA-16-007477
- OSTI ID:
- 4819704
- Report Number(s):
- AEET/ANAL/1(Rev.)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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