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Chloride content of Rocky Flats scrub alloy twelfth campaign solution following head end treatment

Description: A single batch of dissolver solution from the twelfth Rocky Flats Scrub Alloy (RFSA) campaign has been analyzed for chloride content following head end treatment to reduce its concentration. Scrub alloy buttons were dissolved in Tank 6.4D during July. In subsequent head end processing, chloride was precipitated with mercurous ion added as the nitrate. The precipitate, Hg{sub 2}Cl{sub 2}, was co-removed with the gelatin floc via centrifugation. Duplicate samples from Tank 11.2, containing the head end product, produced excellent agreement between their density measurements and acid analyses, indicating them to be truly representative of the tank`s contents. Duplicate aliquots from each of these solutions were analyzed using the turbidimetric chloride method developed in the Separations Technology Laboratory. These resulted in an average chloride value of 53 ppm ({micro}g/mL) chloride for the head end product. Relative standard deviation of the measurement was {+-}6 ppm (n = 4), a precision of {+-}11%. Such a variance is normal at this low chloride level. Since initial chloride values prior to head end averaged 1365 ppm (0.0385M), as analyzed by Laboratories Department, a chloride DF of approximately 26 was obtained. Such a reduced chloride level (to less than 100 ppm) in the treated solution will permit further canyon processing with minimal corrosion.
Date: August 8, 1988
Creator: Holcomb, H. P.
Partner: UNT Libraries Government Documents Department

Chloride content of dissolver solution from Rocky Flats scrub alloy ninth and tenth campaigns following head end treatment

Description: F-Canyon continues to obtain excellent chloride removal from Rocky Flats scrub alloy (RFSA) dissolver solution during head end treatment. One single batch of solution from the ninth RFSA campaign, dissolved in January and February of this year, and two batches from the tenth campaign, dissolved in February, have been successfully processed. Following dissolution in Tank 6.4D, chloride was precipitated with mercurous ion added as the nitrate. The precipitate, Hg{sub 2}Cl{sub 2}, was concurrently removed with the gelatin floc via centrifugation. For each of these three batches processed, a set of duplicate samples was obtained from Tank 11.2 or from Tank 13.3, containing the head end product. The samples were preanalyzed by Laboratories Department for density and acidity to ensure them to be representative of the tank`s contents prior to chloride analysis by the Separations Technology Laboratory. Previous work indicated that in order to protect downstream canyon equipment from chloride attack, the chloride content of RFSA solutions should be less than 100 ppm. All batches from these two RFSA campaigns meet this criterion.
Date: March 8, 1988
Creator: Holcomb, H.P.
Partner: UNT Libraries Government Documents Department

[J.J. Johnson Lecture, March 8, 1988: Parts 1 and 2]

Description: Jazz Lecture Series presentation by J.J. Johnson on March 8, 1988 at 9:30AM at the UNT College of Music. Includes lecture and performance by J. J. Johnson, trombone, interspersed with questions from the audience.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: March 8, 1988
Creator: Johnson, J.J., 1924-2001
Partner: UNT Music Library

[J.J. Johnson Lecture, March 8, 1988: Part 3]

Description: Jazz Lecture Series presentation by J.J. Johnson on March 8, 1988 at 2:00PM at the UNT College of Music. Includes lecture and performance by J. J. Johnson, trombone, interspersed with questions from the audience.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: March 8, 1988
Creator: Johnson, J.J., 1924-2001
Partner: UNT Music Library

[Letter from Herbert Holl to NTRIEVA, April 8, 1988]

Description: A letter from Herbert Holl, the Executive Director of the Greater Denton Arts Council (GDAC), to the leaders of the North Texas Regional Institute for Educators on the Visual Arts. The letter is a show of support for the project and its goals and a pledge of continued involvement.
Date: April 8, 1988
Creator: Holl, Herbert
Partner: UNT Libraries Special Collections

[News Clip: Heat]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 8, 1988, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Jail update]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at
Date: September 8, 1988, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Jail closing]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at
Date: September 8, 1988, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Skin cancer]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6:30am.
Date: April 8, 1988, 6:30 a.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Kids & Drugs]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date: April 8, 1988, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Swimming Pools]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date: July 8, 1988
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Zoo]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date: September 8, 1988
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Sports]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date: February 8, 1988, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Triplets]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date: July 8, 1988
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Wish Upon Star]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date: July 8, 1988
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections