Cesium Hydroxide Fusion Dissolution of Analytical Reference Glass-1 in Both Powder and Shard Form

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CsOH has been shown to be an effective and convenient dissolution reagent for Analytical Reference Glass-1 (ARG-1). This glass standard was prepared from nonradioactive DWPF Start-up Glass. Therefore, its composition is similar to DWPF product glass and many of the glass matrices prepared at SRTC.The principal advantage of the CsOH fusion dissolution is that the reagent does not add the alkali metals Li, Na, and K usually needed by SRS customers. Commercially available CsOH is quite pure so that alkali metals can be measured accurately, often without blank corrections. CsOH fusions provide a single dissolution method for applicable glass to ... continued below

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16 p.

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Coleman, C. J. & Spencer, W. A. April 1998.

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Description

CsOH has been shown to be an effective and convenient dissolution reagent for Analytical Reference Glass-1 (ARG-1). This glass standard was prepared from nonradioactive DWPF Start-up Glass. Therefore, its composition is similar to DWPF product glass and many of the glass matrices prepared at SRTC.The principal advantage of the CsOH fusion dissolution is that the reagent does not add the alkali metals Li, Na, and K usually needed by SRS customers. Commercially available CsOH is quite pure so that alkali metals can be measured accurately, often without blank corrections. CsOH fusions provide a single dissolution method for applicable glass to replace multiple dissolution schemes used by most laboratories. For example, SRTC glass samples are most commonly dissolved with a Na{sub 2}O{sub 2}-NaOH fusion (ref.1) and a microwave- assisted acid dissolution with HNO{sub 3}-HF-H{sub 3}BO{sub 3}-HCl (ref.2). Othe laboratories use fusion methods based on KOH, LiBO{sub 2}, and Na{sub 2}CO{sub 3} CsOH fusion approach reduces by half not only the work in the dissolution laboratory, but also in the spectroscopy laboratories that must analyze each solution.Experiments also revealed that glass shards or pellets are rapidly attacked if the flux temperature is raised considerably above the glass softening point. The softening point of ARG-1 glass is near 650 degrees C. Fusions performed at 750 degrees C provided complete dissolutions and accurate elemental analyses of shards. Successful dissolution of glass shards was demonstrated with CsOH, Na{sub 2}O{sub 2}, NaOH, KOH, and RbOH. Ability to dissolve glass shards is of considerable practical importance. Crushing glass to a fine powder is a slow and tedious task, especially for radioactive glasses dissolved in shielded cells. CsOH fusion of glass powder or shards is a convenient, cost-effective dissolution scheme applicable in SRTC, the DWPF, and the commercial glass industry.

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16 p.

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INIS; OSTI as DE98053174

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  • Other Information: PBD: Apr 1998

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  • Other: DE98053174
  • Report No.: WSRC-TR--98-00124
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/651640 | External Link
  • Office of Scientific & Technical Information Report Number: 651640
  • Archival Resource Key: ark:/67531/metadc706521

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  • April 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 10, 2016, 2:30 p.m.

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Coleman, C. J. & Spencer, W. A. Cesium Hydroxide Fusion Dissolution of Analytical Reference Glass-1 in Both Powder and Shard Form, report, April 1998; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc706521/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.