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Saturation Vapor Pressure of Water over Sodium Borohydride Dihydrate
The relative humidity and saturated water vapor pressure resulted from the reversible equilibrium dissociation of crystalline NaBH 4 ·2H 2 O in the temperature range 0–36°C were determined. Based on the data obtained for NaBH 4 ·2H 2 O, the equilibrium water vapor pressure as a function of temperatu...
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| Published in: | Russian journal of applied chemistry 2023-05, Vol.96 (5), p.562-565 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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| container_end_page | 565 |
| container_issue | 5 |
| container_start_page | 562 |
| container_title | Russian journal of applied chemistry |
| container_volume | 96 |
| creator | Shikhovtsev, A. V. Kravchenko, O. V. Vinokurov, A. A. Solov’ev, M. V. Tsvetkov, M. V. Dobrovol’skii, Yu. A. |
| description | The relative humidity and saturated water vapor pressure resulted from the reversible equilibrium dissociation of crystalline NaBH
4
·2H
2
O in the temperature range 0–36°C were determined. Based on the data obtained for NaBH
4
·2H
2
O, the equilibrium water vapor pressure as a function of temperature ln
P
= –6567.1
T
–1
+ 23.863, enthalpy ∆
Н
0
= 54 ± 0.8 kJ mol
–1
and entropy ∆
S
0
=198 ± 2 J mol
–1
K
–1
of NaBH
4
·2H
2
O dissociation into NaBH
4
and H
2
O, standard enthalpy ∆
H
°= –783 kJ mol
–1
and entropy ∆
S
° = 281 J mol
–1
K
–1
of formation of NaBH
4
·2H
2
O were calculated. An equation was derived for the humidity vs. temperature, which determines the regions of NaBH
4
·2H
2
O formation or its dissociation Rh = 0.334
t
+ 17.5. It was shown that the pressure of saturated water vapor over a concentrated NaBH
4
solution (30 wt %) at temperatures up to 45°C has higher values compared to NaBH
4
·2H
2
O samples synthesized by two different methods. |
| doi_str_mv | 10.1134/S1070427223050075 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2956211654</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2956211654</sourcerecordid><originalsourceid>FETCH-LOGICAL-c268t-3780d356a195f94e1218d2d04b7ff26f044cf95a203e7f33aafd492a5c02c18f3</originalsourceid><addsrcrecordid>eNp1kFtLAzEQhYMoWKs_wLcFn1cnk8tuHrVeoaBQL49L3CS6xTZ1siv035tSwQfxZWbgfOcMHMaOOZxyLuTZjEMFEitEAQqgUjtsxDXUpUCjd_Od5XKj77ODlOYAYLSuR-xyZvuBbN_FZfFsV5GKB_IpDeSLGIoX23sq4lces-i6YVFcRIrva0ed88Vlt7kycsj2gv1I_uhnj9nT9dXj5Lac3t_cTc6nZYu67ktR1eCE0pYbFYz0HHnt0IF8rUJAHUDKNhhlEYSvghDWBicNWtUCtrwOYsxOtrkrip-DT30zjwMt88sGjdLIuVYyU3xLtRRTIh-aFXULS-uGQ7Mpq_lTVvbg1pMyu3zz9Jv8v-kbU4tqWw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2956211654</pqid></control><display><type>article</type><title>Saturation Vapor Pressure of Water over Sodium Borohydride Dihydrate</title><source>Springer Link</source><creator>Shikhovtsev, A. V. ; Kravchenko, O. V. ; Vinokurov, A. A. ; Solov’ev, M. V. ; Tsvetkov, M. V. ; Dobrovol’skii, Yu. A.</creator><creatorcontrib>Shikhovtsev, A. V. ; Kravchenko, O. V. ; Vinokurov, A. A. ; Solov’ev, M. V. ; Tsvetkov, M. V. ; Dobrovol’skii, Yu. A.</creatorcontrib><description>The relative humidity and saturated water vapor pressure resulted from the reversible equilibrium dissociation of crystalline NaBH
4
·2H
2
O in the temperature range 0–36°C were determined. Based on the data obtained for NaBH
4
·2H
2
O, the equilibrium water vapor pressure as a function of temperature ln
P
= –6567.1
T
–1
+ 23.863, enthalpy ∆
Н
0
= 54 ± 0.8 kJ mol
–1
and entropy ∆
S
0
=198 ± 2 J mol
–1
K
–1
of NaBH
4
·2H
2
O dissociation into NaBH
4
and H
2
O, standard enthalpy ∆
H
°= –783 kJ mol
–1
and entropy ∆
S
° = 281 J mol
–1
K
–1
of formation of NaBH
4
·2H
2
O were calculated. An equation was derived for the humidity vs. temperature, which determines the regions of NaBH
4
·2H
2
O formation or its dissociation Rh = 0.334
t
+ 17.5. It was shown that the pressure of saturated water vapor over a concentrated NaBH
4
solution (30 wt %) at temperatures up to 45°C has higher values compared to NaBH
4
·2H
2
O samples synthesized by two different methods.</description><identifier>ISSN: 1070-4272</identifier><identifier>EISSN: 1608-3296</identifier><identifier>DOI: 10.1134/S1070427223050075</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Chemistry ; Chemistry and Materials Science ; Chemistry/Food Science ; Enthalpy ; Entropy ; Industrial Chemistry/Chemical Engineering ; Physicochemical Studies of Systems and Processes ; Relative humidity ; Vapor pressure ; Water vapor</subject><ispartof>Russian journal of applied chemistry, 2023-05, Vol.96 (5), p.562-565</ispartof><rights>Pleiades Publishing, Ltd. 2023</rights><rights>Pleiades Publishing, Ltd. 2023.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c268t-3780d356a195f94e1218d2d04b7ff26f044cf95a203e7f33aafd492a5c02c18f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Shikhovtsev, A. V.</creatorcontrib><creatorcontrib>Kravchenko, O. V.</creatorcontrib><creatorcontrib>Vinokurov, A. A.</creatorcontrib><creatorcontrib>Solov’ev, M. V.</creatorcontrib><creatorcontrib>Tsvetkov, M. V.</creatorcontrib><creatorcontrib>Dobrovol’skii, Yu. A.</creatorcontrib><title>Saturation Vapor Pressure of Water over Sodium Borohydride Dihydrate</title><title>Russian journal of applied chemistry</title><addtitle>Russ J Appl Chem</addtitle><description>The relative humidity and saturated water vapor pressure resulted from the reversible equilibrium dissociation of crystalline NaBH
4
·2H
2
O in the temperature range 0–36°C were determined. Based on the data obtained for NaBH
4
·2H
2
O, the equilibrium water vapor pressure as a function of temperature ln
P
= –6567.1
T
–1
+ 23.863, enthalpy ∆
Н
0
= 54 ± 0.8 kJ mol
–1
and entropy ∆
S
0
=198 ± 2 J mol
–1
K
–1
of NaBH
4
·2H
2
O dissociation into NaBH
4
and H
2
O, standard enthalpy ∆
H
°= –783 kJ mol
–1
and entropy ∆
S
° = 281 J mol
–1
K
–1
of formation of NaBH
4
·2H
2
O were calculated. An equation was derived for the humidity vs. temperature, which determines the regions of NaBH
4
·2H
2
O formation or its dissociation Rh = 0.334
t
+ 17.5. It was shown that the pressure of saturated water vapor over a concentrated NaBH
4
solution (30 wt %) at temperatures up to 45°C has higher values compared to NaBH
4
·2H
2
O samples synthesized by two different methods.</description><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Chemistry/Food Science</subject><subject>Enthalpy</subject><subject>Entropy</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Physicochemical Studies of Systems and Processes</subject><subject>Relative humidity</subject><subject>Vapor pressure</subject><subject>Water vapor</subject><issn>1070-4272</issn><issn>1608-3296</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp1kFtLAzEQhYMoWKs_wLcFn1cnk8tuHrVeoaBQL49L3CS6xTZ1siv035tSwQfxZWbgfOcMHMaOOZxyLuTZjEMFEitEAQqgUjtsxDXUpUCjd_Od5XKj77ODlOYAYLSuR-xyZvuBbN_FZfFsV5GKB_IpDeSLGIoX23sq4lces-i6YVFcRIrva0ed88Vlt7kycsj2gv1I_uhnj9nT9dXj5Lac3t_cTc6nZYu67ktR1eCE0pYbFYz0HHnt0IF8rUJAHUDKNhhlEYSvghDWBicNWtUCtrwOYsxOtrkrip-DT30zjwMt88sGjdLIuVYyU3xLtRRTIh-aFXULS-uGQ7Mpq_lTVvbg1pMyu3zz9Jv8v-kbU4tqWw</recordid><startdate>20230501</startdate><enddate>20230501</enddate><creator>Shikhovtsev, A. V.</creator><creator>Kravchenko, O. V.</creator><creator>Vinokurov, A. A.</creator><creator>Solov’ev, M. V.</creator><creator>Tsvetkov, M. V.</creator><creator>Dobrovol’skii, Yu. A.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20230501</creationdate><title>Saturation Vapor Pressure of Water over Sodium Borohydride Dihydrate</title><author>Shikhovtsev, A. V. ; Kravchenko, O. V. ; Vinokurov, A. A. ; Solov’ev, M. V. ; Tsvetkov, M. V. ; Dobrovol’skii, Yu. A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c268t-3780d356a195f94e1218d2d04b7ff26f044cf95a203e7f33aafd492a5c02c18f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Chemistry/Food Science</topic><topic>Enthalpy</topic><topic>Entropy</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Physicochemical Studies of Systems and Processes</topic><topic>Relative humidity</topic><topic>Vapor pressure</topic><topic>Water vapor</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shikhovtsev, A. V.</creatorcontrib><creatorcontrib>Kravchenko, O. V.</creatorcontrib><creatorcontrib>Vinokurov, A. A.</creatorcontrib><creatorcontrib>Solov’ev, M. V.</creatorcontrib><creatorcontrib>Tsvetkov, M. V.</creatorcontrib><creatorcontrib>Dobrovol’skii, Yu. A.</creatorcontrib><collection>CrossRef</collection><jtitle>Russian journal of applied chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shikhovtsev, A. V.</au><au>Kravchenko, O. V.</au><au>Vinokurov, A. A.</au><au>Solov’ev, M. V.</au><au>Tsvetkov, M. V.</au><au>Dobrovol’skii, Yu. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Saturation Vapor Pressure of Water over Sodium Borohydride Dihydrate</atitle><jtitle>Russian journal of applied chemistry</jtitle><stitle>Russ J Appl Chem</stitle><date>2023-05-01</date><risdate>2023</risdate><volume>96</volume><issue>5</issue><spage>562</spage><epage>565</epage><pages>562-565</pages><issn>1070-4272</issn><eissn>1608-3296</eissn><abstract>The relative humidity and saturated water vapor pressure resulted from the reversible equilibrium dissociation of crystalline NaBH
4
·2H
2
O in the temperature range 0–36°C were determined. Based on the data obtained for NaBH
4
·2H
2
O, the equilibrium water vapor pressure as a function of temperature ln
P
= –6567.1
T
–1
+ 23.863, enthalpy ∆
Н
0
= 54 ± 0.8 kJ mol
–1
and entropy ∆
S
0
=198 ± 2 J mol
–1
K
–1
of NaBH
4
·2H
2
O dissociation into NaBH
4
and H
2
O, standard enthalpy ∆
H
°= –783 kJ mol
–1
and entropy ∆
S
° = 281 J mol
–1
K
–1
of formation of NaBH
4
·2H
2
O were calculated. An equation was derived for the humidity vs. temperature, which determines the regions of NaBH
4
·2H
2
O formation or its dissociation Rh = 0.334
t
+ 17.5. It was shown that the pressure of saturated water vapor over a concentrated NaBH
4
solution (30 wt %) at temperatures up to 45°C has higher values compared to NaBH
4
·2H
2
O samples synthesized by two different methods.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1070427223050075</doi><tpages>4</tpages></addata></record> |
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| ispartof | Russian journal of applied chemistry, 2023-05, Vol.96 (5), p.562-565 |
| issn | 1070-4272 1608-3296 |
| language | eng |
| recordid | cdi_proquest_journals_2956211654 |
| source | Springer Link |
| subjects | Chemistry Chemistry and Materials Science Chemistry/Food Science Enthalpy Entropy Industrial Chemistry/Chemical Engineering Physicochemical Studies of Systems and Processes Relative humidity Vapor pressure Water vapor |
| title | Saturation Vapor Pressure of Water over Sodium Borohydride Dihydrate |
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