the equilibrium solubility data of co2 in the various aqueous blends of triisopropanolamine (tipa) + monoethanolamine (mea) with the total alkanolamine concentration of 2 mole / dm3 were measured at the temperatures of 30, 40, 50, 60 and 70 oc and co2 partial pressures below 100 kpa. the experiments were done in an atmospheric gas absorption system and the amount of absorbed co2 was measured wi...

Photocatalytic membrane was successfully prepared using an efficiently high surface area TiO2 catalyst, dispersed into polyacrylonitrile matrix. The catalyst was directly synthesized using titanium triisopropanolamine as a precursor. The membranes were characterized using FT-IR, TGA, SEM and their photocatalytic performance tested, viz. stability, permeate flux and photocatalytic degradation of...

The potential for endogenous formation of N-nitrosobis(2-hydroxypropyl)amine (BHP) and car cinogenicity were investigated in male Wistar rats administered tris(2-hydroxypropyl)amine (THPA) mixed in powdered diet at a concentration of 2% and sodium nitrite dissolved in distilled water at concentrations of 0.15% and 0.3% for 102 weeks. Endogenous formation of BHP was demonstrated by its presence ...

This paper intends to examine the influence of temperatures on early age cement paste hydration, as well setting time and compressive strength with addition Triethanolamine (TEA) Triisopropanolamine (TIPA); hence, mechanisms TEA, TIPA at different curing were explored. The outcomes show that adding 0.05% 0.1% retarded pastes; however, this retardation depended both dosage temperature. At 23°C t...

The interaction effects of four chlorine-free admixtures such as calcium formate (CF), triethanolamine, (TEA), triisopropanolamine (TIPA), and sodium sulfate (SS) on the compressive strength development Portland cement mortars were investigated based design experiment (DoE). results showed that both addition CF SS contributed significantly to at early curing age. However, could hinder their res...

Alumina gels were prepared by the sol–gel method using alumatrane or tris(alumatranyloxy-i-propyl)amine as precursor synthesised directly from the reaction of inexpensive and readily available compounds, aluminium hydroxide and triisopropanolamine (TIS), via the one step process. Sol–gel process parameters, such as gel time, were correlated to variables of the initial stage of the process, such...

Aminoalcohols have been addressed as activating buffers for alkaline phosphatase. However, there is no record on the buffer activation regarding organophosphorus hydrolase (OPH). Here we reported the activating effects of aminoalcohols on OPH-catalyzed hydrolysis of diisopropylfluorophosphate (DFP), an analog molecule of G-type warfare agents. The kinetic parametors kcat, Vmax and kcat/Km in th...

Global climate change and global warming due to elevated CO2 atmospheric concentrations have become a major concern. For this reason, the separation capture of from industrial effluence is an important research focus. The CO2-based hydrate formation process has received close attention in field carbon its efficiency selectively separating pre- post-combustion gas mixtures. In work, set experime...