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Profil bibliographique

Ana R. R. P. Almeida

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

45Publications signalées
713Citations signalées
1Affiliations récentes

Les institutions déclarées

Les domaines associés

Chemical Thermodynamics and Molecular StructurePhase Equilibria and ThermodynamicsThermal and Kinetic AnalysisFree Radicals and Antioxidantsthermodynamics and calorimetric analyses

Les publications récentes

Accès ouvert 2025 article OpenAlex

Exploring the Volatility, Phase Transitions, and Solubility Properties of Five Halogenated Benzaldehydes

Ana R. R. P. Almeida, Bruno D. A. Pinheiro, Gastón P. León, Bogdan O. Postolnyi et autres

Halogenated benzaldehydes possess unique chemical properties that render them valuable in pharmaceutical synthesis, pesticide formulation, and dye production. However, thorough thermodynamic data for these compounds remain scarce. This study aims to fill this knowledge gap by investigating key physical properties of several …

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1 citation Molecules
Accès ouvert 2024 article OpenAlex

Thermochemical Research on Furfurylamine and 5-Methylfurfurylamine: Experimental and Computational Insights

Luı́sa M.P.F. Amaral, Ana R. R. P. Almeida, Manuel A. V. Ribeiro da Silva

The need to transition from fossil fuels to renewables arises from factors such as depletion, price fluctuations, and environmental considerations. Lignocellulosic biomass, being abundant, and quickly renewable, and not interfering with food supplies, offers a standout alternative for chemical production. This paper …

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3 citations Molecules
Accès ouvert 2023 article OpenAlex

Phase transitions properties of N,N-dimethyl-4-nitroaniline

Bruno D. A. Pinheiro, Ana R. R. P. Almeida, Manuel J.S. Monte

The present work reports an experimental study aiming to determine several thermodynamic properties of fusion and sublimation of the chromophore N,N-dimethyl-4-nitroaniline. This compound is commonly used as a reference in studies focused on the non-linear optical (NLO) characteristics of chromophores. Using the …

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0 citations U Porto Journal of Engineering
Accès ouvert 2023 article OpenAlex

Inside Cover: On the Enthalpy of Formation and Enthalpy of Sublimation of Dihydroxylammonium 5,5′‐bitetrazole‐1,1′‐dioxide (TKX‐50) (Prop., Explos., Pyrotech. 7/2023)

Ana L.R. Silva, Ana R. R. P. Almeida, María D.M.C. Ribeiro da Silva, Jelena Reinhardt et autres

The cover image is based on the Research Article On the Enthalpy of Formation and Enthalpy of Sublimation of Dihydroxylammoni- um 5,5'-bitetrazole-1,1'-dioxide (TKX-50) by Ana L. R. Silva et al., https://doi.org/10.1002/prep.202200361

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0 citations Propellants Explosives Pyrotechnics
Accès ouvert 2023 article OpenAlex

On the Enthalpy of Formation and Enthalpy of Sublimation of Dihydroxylammonium 5,5′‐bitetrazole‐1,1′‐dioxide (TKX‐50)

Ana L.R. Silva, Ana R. R. P. Almeida, María D.M.C. Ribeiro da Silva, Jelena Reinhardt et autres

Abstract The thermodynamic characterization of dihydroxylammonium 5,5′‐bitetrazole‐1,1′‐dioxide (TKX‐50) was reinvestigated. Although TKX‐50 is one of the most promising new‐generation energetic materials, contradictory reports are found in the literature with regard to its solid enthalpy of formation. The standard (po=105 Pa) molar enthalpy …

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18 citations Propellants Explosives Pyrotechnics
Accès ouvert 2023 article OpenAlex

Phase Transitions Equilibria of Five Dichlorinated Substituted Benzenes

Ana R. R. P. Almeida, Bruno D. A. Pinheiro, Manuel J.S. Monte

This work reports an experimental study aiming to determine the thermodynamic properties of five chlorinated compounds with environmental impact. The vapor pressures of the crystalline phases of three isomers of dichlorobenzoic acid (2,4-, 2,5-, and 2,6-) and 2,6-dichlorobenzonitrile were measured at several …

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1 citation Molecules
Accès ouvert 2021 article OpenAlex

Thermodynamic Stability of Fenclorim and Clopyralid

Ana R. R. P. Almeida, Bruno D. A. Pinheiro, Ana I.M.C. Lobo Ferreira, Manuel J.S. Monte

The present work reports an experimental thermodynamic study of two nitrogen heterocyclic organic compounds, fenclorim and clopyralid, that have been used as herbicides. The sublimation vapor pressures of fenclorim (4,6-dichloro-2-phenylpyrimidine) and of clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) were measured, at different temperatures, using a …

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3 citations Molecules
Accès ouvert 2021 preprint OpenAlex

Thermodynamic Stability of Fenclorim and Clopyralid

Ana R. R. P. Almeida, Bruno D. A. Pinheiro, Ana I.M.C. Lobo Ferreira, Manuel J.S. Monte

The present work reports an experimental thermodynamic study of two nitrogen heterocyclic organic compounds, fenclorim and clopyralid, that have been used as herbicides. The sublimation vapor pressures of fenclorim (4,6-dichloro-2-phenylpyrimidine) and of clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) were measured, at different temperatures, using a …

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3 citations Preprints.org

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