Vapor pressure measurements of AgBr by the Knudsen effusion method

Tetsuya Nagata; Atsushi Iizuka; Etsuro Shibata

doi:10.1016/j.tca.2018.10.027

Vapor pressure measurements of AgBr by the Knudsen effusion method

Tetsuya Nagata, Atsushi Iizuka, Etsuro Shibata

Center for Mineral Processing and Metallurgy (CMPM)

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The vapor pressure of silver bromide (AgBr) liquid was measured by the Knudsen effusion method. The ratio of the vapor species of silver bromide was calculated from the literature Hildenbrand and Lau, Pankratz [3,6], and the vapor pressures were calculated on the basis of the ratio. As reported in the literature Hildenbrand and Lau [3], we considered the vapor species to be monomers (AgBr) and trimers (Ag₃Br₃). The partial pressures of AgBr [p_monomer(Pa)] and Ag₃Br₃ [p_trimer(Pa)] were respectively fitted by the following linear equations over the temperature range 829.9–929.9 K: lnp_monomer= -(23590 ± 519) / T + 25.22 ± 0.59, ln(p_trimer) = -(19449 ± 509) / T + (20.42 ± 0.58). The total vapor pressure of silver bromide [p_total(Pa)] fitted the following linear equation: ln(p_total) = -(21653 ± 529) / T + (23.72 ± 0.60).

Original language	English
Pages (from-to)	32-35
Number of pages	4
Journal	Thermochimica Acta
Volume	671
DOIs	https://doi.org/10.1016/j.tca.2018.10.027
Publication status	Published - 2019 Jan

Keywords

Knudsen effusion method
Silver bromide
Vapor pressure
Vapor species

ASJC Scopus subject areas

Instrumentation
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1016/j.tca.2018.10.027

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title = "Vapor pressure measurements of AgBr by the Knudsen effusion method",

abstract = "The vapor pressure of silver bromide (AgBr) liquid was measured by the Knudsen effusion method. The ratio of the vapor species of silver bromide was calculated from the literature Hildenbrand and Lau, Pankratz [3,6], and the vapor pressures were calculated on the basis of the ratio. As reported in the literature Hildenbrand and Lau [3], we considered the vapor species to be monomers (AgBr) and trimers (Ag3Br3). The partial pressures of AgBr [pmonomer(Pa)] and Ag3Br3 [ptrimer(Pa)] were respectively fitted by the following linear equations over the temperature range 829.9–929.9 K: lnpmonomer= -(23590 ± 519) / T + 25.22 ± 0.59, ln(ptrimer) = -(19449 ± 509) / T + (20.42 ± 0.58). The total vapor pressure of silver bromide [ptotal(Pa)] fitted the following linear equation: ln(ptotal) = -(21653 ± 529) / T + (23.72 ± 0.60).",

keywords = "Knudsen effusion method, Silver bromide, Vapor pressure, Vapor species",

author = "Tetsuya Nagata and Atsushi Iizuka and Etsuro Shibata",

note = "Funding Information: This research was partly supported by a Grant-in-Aid for Scientific Research (A) ( 23246158 ) and The High Efficiency Rare Elements Extraction Technology Area, Tohoku Innovative Materials Technology Initiatives for Reconstruction from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan. We thank Andrew Jackson, PhD, from Edanz Group ( www.edanzediting.com/ac ) for editing a draft of this manuscript. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

month = jan,

doi = "10.1016/j.tca.2018.10.027",

language = "English",

volume = "671",

pages = "32--35",

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T1 - Vapor pressure measurements of AgBr by the Knudsen effusion method

AU - Nagata, Tetsuya

AU - Iizuka, Atsushi

AU - Shibata, Etsuro

N1 - Funding Information: This research was partly supported by a Grant-in-Aid for Scientific Research (A) ( 23246158 ) and The High Efficiency Rare Elements Extraction Technology Area, Tohoku Innovative Materials Technology Initiatives for Reconstruction from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan. We thank Andrew Jackson, PhD, from Edanz Group ( www.edanzediting.com/ac ) for editing a draft of this manuscript. Publisher Copyright: © 2018 Elsevier B.V.

PY - 2019/1

Y1 - 2019/1

N2 - The vapor pressure of silver bromide (AgBr) liquid was measured by the Knudsen effusion method. The ratio of the vapor species of silver bromide was calculated from the literature Hildenbrand and Lau, Pankratz [3,6], and the vapor pressures were calculated on the basis of the ratio. As reported in the literature Hildenbrand and Lau [3], we considered the vapor species to be monomers (AgBr) and trimers (Ag3Br3). The partial pressures of AgBr [pmonomer(Pa)] and Ag3Br3 [ptrimer(Pa)] were respectively fitted by the following linear equations over the temperature range 829.9–929.9 K: lnpmonomer= -(23590 ± 519) / T + 25.22 ± 0.59, ln(ptrimer) = -(19449 ± 509) / T + (20.42 ± 0.58). The total vapor pressure of silver bromide [ptotal(Pa)] fitted the following linear equation: ln(ptotal) = -(21653 ± 529) / T + (23.72 ± 0.60).

AB - The vapor pressure of silver bromide (AgBr) liquid was measured by the Knudsen effusion method. The ratio of the vapor species of silver bromide was calculated from the literature Hildenbrand and Lau, Pankratz [3,6], and the vapor pressures were calculated on the basis of the ratio. As reported in the literature Hildenbrand and Lau [3], we considered the vapor species to be monomers (AgBr) and trimers (Ag3Br3). The partial pressures of AgBr [pmonomer(Pa)] and Ag3Br3 [ptrimer(Pa)] were respectively fitted by the following linear equations over the temperature range 829.9–929.9 K: lnpmonomer= -(23590 ± 519) / T + 25.22 ± 0.59, ln(ptrimer) = -(19449 ± 509) / T + (20.42 ± 0.58). The total vapor pressure of silver bromide [ptotal(Pa)] fitted the following linear equation: ln(ptotal) = -(21653 ± 529) / T + (23.72 ± 0.60).

KW - Knudsen effusion method

KW - Silver bromide

KW - Vapor pressure

KW - Vapor species

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Vapor pressure measurements of AgBr by the Knudsen effusion method

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