DETERMINATION OF HYDROGEN IN LITHIUM HYDRIDE

Technical Report · Sat May 01 00:00:00 EDT 1954

OSTI ID:4286503

Bergstresser, K S; Waterbury, G R

A method for determining hydrogen in lithium hydride by heating samples with lead at 600 deg C was developed. The hvdrogen evolved during thermal decomposition of the hydride is purifjed and oxidized to water with cupric oxide at 400 deg C. The analysis is completed by collecting and weighing this water. Success in development of the analytical procedure has depended upon a careful design and assembly of equipment for handling samples in a dry, inert atmosphere. For seven pure hydride samples analyzed by the recommended method the estimates of the standard deviation varied between 0.12 und 0.4l% lithium hydride (or l.3 and 4.2 parts per thousand) for 8 to l8 determinations on each sample. The procedure is relatively insensitive to variations in certain conditions. For single-piece samples weighing 0.2 to 0.5 gram it was found to be more satisfactory than a method which uses mercury in place of lead for sample decomposition. For powdered lithium hydride samples the lead and mercury methods are equally satisfactory. (auth)

• Research Organization: Los Alamos Scientific Lab., N. Mex.
• DOE Contract Number: W-7405-ENG-36
• NSA Number: NSA-13-001116
• OSTI ID: 4286503
• Report Number(s): LAMS-1698
• Resource Relation: Other Information: Decl. Oct. 5, 1956. Orig. Receipt Date: 31-DEC-59
• Country of Publication: United States
• Language: English

Related Subjects

CHEMISTRY
CATALYSIS
CHEMICAL REACTIONS
COMPOUNDS
COPPER OXIDES
DECOMPOSITION
ERRORS
GASES
GRAVIMETRY
HEATING
HIGH TEMPERATURE
HUMIDITY
HYDROGEN
INERT GASES
LEAD
LITHIUM HYDRIDES
MEASURED VALUES
MELTING
MERCURY
OXIDATION
PERFORMANCE
POWDERS
PRODUCTION
PYROLYSIS
QUALITATIVE ANALYSIS
RARE GASES
REFINING
TEMPERATURE
WATER
WEIGHT