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Record W2476270826 · doi:10.1021/jp031247w

Effects of Na<sub>2</sub>SO<sub>4</sub> and NaClO<sub>4</sub> on the Molecular Organization of H<sub>2</sub>O

2004· article· en· W2476270826 on OpenAlexaff
Yoshikata Koga, Peter Westh, Keiko Nishikawa

Bibliographic record

VenueThe Journal of Physical Chemistry A · 2004
Typearticle
Languageen
FieldChemical Engineering
TopicThermodynamic properties of mixtures
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsSalt (chemistry)Hydrogen bondMole fractionChemistryEnthalpyTernary operationMoleculeCrystallographyPhysical chemistryThermodynamicsOrganic chemistryPhysics

Abstract

fetched live from OpenAlex

We study thermodynamic behaviors of 1-propanol (abbreviated as 1P) in ternary 1P−salt−H 2 O in order to elucidate the effects of salt on the molecular organization of H 2 O. We determine the excess partial molar enthalpy of 1P, H 1P E, as a function of the mole fraction of 1P, x 1P, and the salt. We examine the x 1P dependence of H 1P E, and changes induced by the presence of salt are used to elucidate the effect of the salt on the molecular organization of H 2 O. We previously found that an NaCl ion pair binds 7 to 8 molecules of H 2 O, but has no effect on H 2 O outside of the hydration shell. Na 2 SO 4 and NaClO 4, on the other hand, modify the molecular organization of H 2 O each in different ways. In particular, ClO 4 - seems to participate in the hydrogen bond network of H 2 O and to retard the degree of fluctuation inherent in liquid H 2 O.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.003
GPT teacher head0.176
Teacher spread0.173 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations15
Published2004
Admission routes1
Has abstractyes

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Same venueThe Journal of Physical Chemistry ASame topicThermodynamic properties of mixturesFrench-language works237,207