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Infrared characterization of hydrated products of glyoxal in aqueous solution
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2023The simplest and most abundant dicarbonyl in the atmosphere, glyoxal ((CHO)2), and its geminal diols via stepwise hydration reactions, monohydrate (CHOCH(OH)2) and dihydrate ((HC(OH)2)2), are proposed to be responsible for the generation of atmospheric acid and the increase in aerosol viscosity.
Pei-Rong Chen, Li-Kang Chu
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Cement and Concrete Research, 1979
Abstract The initial hydration of C3S in paste form at room temperature was studied. The process is initiated by a short lasting rapid hydration in which about 1 – 2% of C3S is hydrated and a hydrate with low C/S and high H/S ratio is formed. After a subsequent induction period of 4 hours a renewed rapid hydration is observed in which a hydrate of ...
I. Odler, H. Dörr
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Abstract The initial hydration of C3S in paste form at room temperature was studied. The process is initiated by a short lasting rapid hydration in which about 1 – 2% of C3S is hydrated and a hydrate with low C/S and high H/S ratio is formed. After a subsequent induction period of 4 hours a renewed rapid hydration is observed in which a hydrate of ...
I. Odler, H. Dörr
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Journal of the American Chemical Society, 2004
Hydration of nitrosylruthenium bis(alkynyl) complex TpRu(CCPh)2(NO) (1) (Tp = BH(pyrazol-1-yl)3) was carried out in the presence of HBF4.Et2O in distilled MeOH and afforded the metallacycle TpRu{CH=C(Ph)C(O)CH(Ph)}(NO) (2) (39%) and the bis(ketonyl) TpRu(CH2C(O)Ph)2(NO) (3) (37%). While double hydration of 1 gave 3, 2 was produced through a combination
Yasuhiro, Arikawa +3 more
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Hydration of nitrosylruthenium bis(alkynyl) complex TpRu(CCPh)2(NO) (1) (Tp = BH(pyrazol-1-yl)3) was carried out in the presence of HBF4.Et2O in distilled MeOH and afforded the metallacycle TpRu{CH=C(Ph)C(O)CH(Ph)}(NO) (2) (39%) and the bis(ketonyl) TpRu(CH2C(O)Ph)2(NO) (3) (37%). While double hydration of 1 gave 3, 2 was produced through a combination
Yasuhiro, Arikawa +3 more
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THE HYDRATION OF THE ALUMINATES OF CALCIUM.: II. THE HYDRATION PRODUCTS OF TRICALCIUM ALUMINATE
Canadian Journal of Research, 1929Further studies on the isometric form of hydrated tricalcium aluminate are reported. These include methods of preparation, crystalline forms, X-ray diffraction pattern, and determinations of solubility and density. The products formed when the hexagonal form of hydrated tricalcium aluminate is dehydrated at definite vapor pressures of Water at 21 °C.,
T. Thorvaldson +2 more
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PRODUCTION OF HYDRATED ELECTRONS
Canadian Journal of Chemistry, 1966not available
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[Skin hydration and hydrating products].
Annales de dermatologie et de venereologie, 2018One of the skin's principal functions is to protect the body against its environment by maintaining an effective epidermal barrier, not only against external factors, but also to prevent water loss from the body. Indeed, water homeostasis is vital for the normal physiological functioning of skin.
H, Duplan, T, Nocera
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Squamometry as a screening method for the evaluation of hydrating products
Skin Research and Technology, 2001Background/aims: Squamometry is a combination of sampling corneocytes by adhesive coated discs followed by colour measurements after staining the cells. In this study, the correlation between stratum corneum (SC) hydration and scaling was investigated using capacitance measurements and squamometry, respectively.Methods: Stratum corneum hydration and ...
De Paepe, Kristien +4 more
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Solubility Behavior of the Hydration Products in the Pore Solution of Hydrated Cement Pastes
Key Engineering Materials, 2013The concentrations of Ca, Al, Si, Na, K, SO42- and pH value in the pore solution of Portland cement were measured during the first 28 days of hydration at room temperature. A thermodynamic analysis of the elemental concentrations was used to predict saturation indices of various solid phases known to form in normal cement system.
Wu Yao, Man Jian Wu
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Numerical Investigation on Gas Hydrate Production by Depressurization in Hydrate-Bearing Reservoir
Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology, 2016Gas hydrates are anticipated to be a promising energy source with global distribution underneath the oceans and in permafrost regions. Hydrate dissociation referring to the phase transition of the solid gas hydrate into gas and liquid water, can occur due to altered environmental conditions like increase in temperature, decrease in pressure, or the ...
Xiaoyan Long +2 more
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Gas production from hydrate reservoirs
2005ÖZ HİDRAT REZERVUARLARINDAN GAZ ÜRETİMİ Alp, Doruk Yüksek lisans, Petrol ve Doğalgaz Mühendisliği Bölümü Tez Yöneticisi: Prof. Dr. Mahmut Parlaktuna Ortak Tez Yöneticisi: Dr. George Moridis Haziran 2005, 149 sayfa Bu çalışmada, hidrat bölgesi altında serbest gaz bölgesi olan bir hidrat rezervuarından basınç düşürme yöntemiyle gaz üretimi; 3 boyutlu, 3 ...
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