Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report

One of 5,530 items in the series: Atomic Energy Commission Reports available on this site.
Thumbnail image of item number 1 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.
Thumbnail image of item number 2 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.
Thumbnail image of item number 3 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.
Thumbnail image of item number 4 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.
Showing 1-4 of 8 pages in this report.

PDF Version Also Available for Download.

Description

Technical report abstract: Since UNH is a highly dissociated compound which ionizes to NO3 and (UO2), the latter ion being very weakly basic, a solution of pure UNH is quite acid (pH about 3). It is possible to titrate to a phenolphthalein and point with standard caustic solution and obtain a figure which represents the free acid plus the NO3 from the the UNH. However, titration of the free nitric acid alone in such a solution presents quite a problem. By precipitating and removing uranium from solution by means of potassium ferrocyanide, the residual free acid may be titrated directly … continued below

Physical Description

8 pages : illustrations

Creation Information

Parlour, A. K. & Hammond, C. W. April 21, 1944.

Context

This report is part of the collection entitled: TRAIL Microcard Collection and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 16 times. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Authors

Originator

Sponsors

Publisher

Audiences

We've identified this report as a primary source within our collections. Researchers, educators, and students may find this report useful in their work.

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Titles

Description

Technical report abstract: Since UNH is a highly dissociated compound which ionizes to NO3 and (UO2), the latter ion being very weakly basic, a solution of pure UNH is quite acid (pH about 3). It is possible to titrate to a phenolphthalein and point with standard caustic solution and obtain a figure which represents the free acid plus the NO3 from the the UNH. However, titration of the free nitric acid alone in such a solution presents quite a problem. By precipitating and removing uranium from solution by means of potassium ferrocyanide, the residual free acid may be titrated directly by means of standard caustic using either methyl red or phenolphthalein indicators, with an error of less than 4%. A method is given to determine formic acid, should that acid be present in the mixture.

Physical Description

8 pages : illustrations

Notes

Digitized from microopaque cards (1).

Subjects

Library of Congress Subject Headings

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • SuDoc Number: Y 3.At 7:22/CC-1432
  • Report No.: CC-1432
  • Accession or Local Control No: metadc1256362
  • Archival Resource Key: ark:/67531/metadc1256362

Collections

This report is part of the following collections of related materials.

TRAIL Microcard Collection

Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

About | Browse this Collection

Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

About | Browse this Collection

What responsibilities do I have when using this report?

Digital Files

When

Dates and time periods associated with this report.

Creation Date

  • April 21, 1944

Added to The UNT Digital Library

  • Aug. 10, 2021, 7:38 a.m.

Description Last Updated

  • Dec. 16, 2021, 7:45 a.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 16
More Statistics

Where

Geographical information about where this report originated or about its content.

Place Name

Publication Place

Map Information

  • map marker Place Name coordinates. (May be approximate.)
  • Repositioning map may be required for optimal printing.

Mapped Locations

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.
Thumbnail image of item number 2 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.
Thumbnail image of item number 3 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.
Thumbnail image of item number 4 in: 'Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Parlour, A. K. & Hammond, C. W. Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report, report, April 21, 1944; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1256362/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

Back to Top of Screen