Separation of boron isotopes by means of weak-base anion exchange resin

Journal Article · Wed Aug 01 04:00:00 EDT 1973 · Nippon Kagaku Kaishi, v. 1973, no. 8, pp. 1482-1485

DOI:https://doi.org/10.1246/nikkashi.1973.1482· OSTI ID:4393120

Kotaka, M; Murayama, K; Kakihana, H

Aqueous solution cortaining 5 mmol of boric acid was passed through a column packed with weak-base anion exchange re sin, Diaion WA 21 in free base form (0.8 cm/sup 2/ x 48 cm bed), and the borate band formed on the column was eluted with pure water. The boric acid concentration in each fraction of the effluent was determined by acid-base titration with manitol. The atomic fraction of the boron-10 in each fraction was determined by means of Varian Mat CH 5 mass spectrometer, using the surface ionization method. In these experiments it was found that: (1) Boron-10 was considerably enriched in the rear part of the band, and depleted in the frontal part. (2) The boric acid charged on the column was completely eluted with pure water. (3) The elution curve was influenced effectively by operation temperature; the higher the temperature became (from 5 deg C to 40 deg C) the sharper the elution peak became. (4) Boric acid concentration and flow rate gave a little influence on the elution curve; increase of boric acid concentration up to 1.0 mol/l and decrease of flow rate tended to give sharper elution peak. (auth)

• Research Organization: Tokyo Inst. of Tech.
• NSA Number: NSA-29-004876
• OSTI ID: 4393120
• Journal Information: Nippon Kagaku Kaishi, v. 1973, no. 8, pp. 1482-1485, Journal Name: Nippon Kagaku Kaishi, v. 1973, no. 8, pp. 1482-1485; ISSN NKAKB
• Country of Publication: Japan
• Language: Japanese

Related Subjects

*BORON ISOTOPES-- ISOTOPE SEPARATION
*BORON-- ION EXCHANGE CHROMATOGRAPHY
ANIONS
AQUEOUS SOLUTIONS
BORIC ACID
BORON 10
FLOW RATE
MEDIUM TEMPERATURE
N40230* --Chemistry--Inorganic
Organic
& Physical Chemistry--Isotope Exchange & Isotope Separation
ORGANIC ION EXCHANGERS
RESINS
TEMPERATURE DEPENDENCE
WATER