scholarly journals Effect of Metal Ion on Ammonium Bicarbonate Solution Decomposed into Carbon Dioxide

2017 ◽  
Author(s):  
Lu Hu ◽  
Hai-Feng Li ◽  
Mei Jin ◽  
Guo-Xian Yu
Keyword(s):  
Carbon Dioxide ◽  
Metal Ion ◽  
Ammonium Bicarbonate

scholarly journals The Effects of Different Formulation of Baking Powder on Short Biscuits Characteristics

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Georgiana CIOROIANU ◽  
Claudia Felicia OGNEAN ◽  
Mihai OGNEAN
Keyword(s):  
Carbon Dioxide ◽  
Elevated Temperature ◽  
Tartaric Acid ◽  
Ammonium Bicarbonate ◽  
Potassium Bicarbonate ◽  
Baked Goods ◽  
Sodium Acid Pyrophosphate

Chemical leaveners are used to give cookies, cakes, and other baked goods their characteristic textures. They produce gas when a carbon dioxide source and an acid are mixed together and come into contact with water. The most common sources of gas are sodium or potassium bicarbonate alone or in combination with ammonium bicarbonate. A great variety of acids are used in baking powder formulations. The acid are classified according to their capacity to react at lower or elevated temperature as rapid or slow acting. The aim of these study is to evaluate a very rapid acting acid (tartaric acid) and a slow to very slow acting acid (sodium acid pyrophosphate - SAPP) on the characteristics of short biscuits. The acids were added to reach 0, 25%, 50%, 75% and 100% of neutralizing values (VN). The biscuits height and diameter, alkalinity and sensorial profile were determined.

Mechanistic and IR Spectroelectrochemical Studies for Alkali Metal Ion Catalyzed Multiple Bond Metathesis Reactions of Carbon Dioxide

1998 ◽  
Vol 27 (10) ◽  
pp. 1063-1064 ◽  
Author(s):  
Woo Young Kim ◽  
Jong-San Chang ◽  
Sang-Eon Park ◽  
Gregory Ferrence ◽  
Clifford P. Kubiak
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Metal Ion ◽  
Multiple Bond ◽  
Alkali Metal Ion ◽  
Metathesis Reactions

Solidification of Greenhouse Gas Carbon Dioxide

2014 ◽  
Vol 472 ◽  
pp. 879-883
Author(s):  
Wei Yin
Keyword(s):  
Carbon Dioxide ◽  
Calcium Carbonate ◽  
Ambient Temperature ◽  
Calcium Sulfate ◽  
Exothermic Reaction ◽  
Ammonium Bicarbonate ◽  
Second Order Reaction ◽  
Carbon Dioxide Gas ◽  
Water Media ◽  
Closed Reactor

The feasible routine of carbon dioxide solidification is developed, which employs carbon dioxide with calcium sulfate and ammonia to obtain calcium carbonate and ammonium sulfate at ambient temperature. The process of carbon dioxide solidification is a spontaneous and exothermic reaction, whose possesses the rate constants of the second order reaction, which can be attributed to carbon dioxide gas dissolving the water media and carbon dioxide reacted with ammonia to produce ammonium bicarbonate. Calcium sulfate changing rapidly into calcium carbonate accelerates the process of reaction of carbon dioxide reacted with ammonia. The optimization process parameters of carbon dioxide solidification are a 0.075-MPa of CO2, a 0.5-mol of CaSO4·2H2O, a 0.5-mol of NH3·H2O and a 100-ml of H2O in a closed reactor, which is able to obtain 100% CO2 gas solidification efficiency within 4 minutes at ambient temperature.

IR study on adsorption of carbon dioxide on alkaline earth metal ion-exchanged titanate nanotubes at room temperature

2020 ◽  
Vol 109 ◽  
pp. 103088
Author(s):  
Eri Uematsu ◽  
Atsushi Itadani ◽  
Kazuyoshi Uematsu ◽  
Kenji Toda ◽  
Mineo Sato
Keyword(s):  
Carbon Dioxide ◽  
Metal Ion ◽  
Alkaline Earth ◽  
Room Temperature ◽  
Earth Metal ◽  
Titanate Nanotubes ◽  
Alkaline Earth Metal ◽  
Ir Study

Characterization and adsorptive properties of poly(1-vinylimidazole)/silica nanocomposites synthesized in supercritical carbon dioxide

e-Polymers ◽  
2015 ◽  
Vol 15 (4) ◽  
pp. 245-254 ◽  
Author(s):  
Wei Wang ◽  
Liqin Cao ◽  
Jide Wang ◽  
Jie Zhao ◽  
Xiujuan Wu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Metal Ion ◽  
Maximum Adsorption Capacity ◽  
Hydroxyl Groups ◽  
One Pot ◽  
Nanocomposite Particles ◽  
Silica Nanocomposite ◽  
Supercritical Carbon

AbstractPoly(1-vinylimidazole) (PVIm)/silica nanocomposite particles were prepared via free radical polymerization of VIm in the presence of unmodified silica and crosslinker N,N′-methylenebisacrylamide without any surfactant by a one-pot route in supercritical carbon dioxide. The strong acid-base interaction between the hydroxyl groups (acidic) of silica surfaces and the imidazole groups (basic) of 1-VIm was strong enough to promote the formation of long-stable PVIm/silica nanocomposite particles. Transmission electron microscopy and scanning electron microscopy results showed that the silica nanoparticles were encapsulated into the polymer and with a specific pore structure. Fourier transform infrared spectroscopy results suggested the strong interaction between PVIm and silica. The nanocomposites were shown to possess higher thermal stability than PVIm. A maximum surface area of 60.76 m2/g was obtained via standard nitrogen adsorption analysis. The property of the composite materials in terms of heavy metal ion removal was investigated. The maximum adsorption capacity of Cr (VI) is 331.5 mg/g in the experimental range.

Tubular Titanates: Alkali-Metal Ion-Exchange Features and Carbon Dioxide Adsorption at Room Temperature

2019 ◽  
Vol 58 (13) ◽  
pp. 5168-5174 ◽  
Author(s):  
Eri Uematsu ◽  
Atsushi Itadani ◽  
Hideki Hashimoto ◽  
Kazuyoshi Uematsu ◽  
Kenji Toda ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ion Exchange ◽  
Alkali Metal ◽  
Metal Ion ◽  
Room Temperature ◽  
Carbon Dioxide Adsorption ◽  
Alkali Metal Ion ◽  
Metal Ion Exchange
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