Category: 194491-31-1

Nouzaki, Katsuya published the artcileTreatment by low pressure type reverse osmosis membranes for recovery of plating rinse wastewater for recycling, Name: Sodium 2,2′,2”,2”’-(ethane-1,2-diylbis(azanetriyl))tetraacetate xhydrate, the publication is Maku (2003), 28(6), 288-295, database is CAplus.

For the purpose of recycling of wastewater from plating rinse process, we studied low pressure reverse osmosis membranes (effective membrane area 1.7 m²). In the case of 50% recovery of permeate water from feed, the membrane showed a stable performance, but in the case of 80% recovery, the membrane performance decreased gradually with the formation of silica scale on the membrane surface. In order to recover the membrane performance, we studied washing the membrane surface with ethylene-diamine-tetraacetic acid, tetrasodium salt hydrate (EDTA-4Na) aqueous solutions The membranes treated with these solutions showed the same performance as the initial ones. In a pilot plant (effective membrane area 36 m²), the membrane showed a stable performance with an every 200 h wash cycle using EDTA-4Na aqueous solutions

Maku published new progress about 194491-31-1. 194491-31-1 belongs to catalysis-chemistry, auxiliary class Carboxylic Acid Salts,Amine,Aliphatic hydrocarbon chain, name is Sodium 2,2′,2”,2”’-(ethane-1,2-diylbis(azanetriyl))tetraacetate xhydrate, and the molecular formula is C10H14N2Na4O9, Name: Sodium 2,2′,2”,2”’-(ethane-1,2-diylbis(azanetriyl))tetraacetate xhydrate.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Tsukiyama, Junko published the artcileEffects of over-the-counter artificial tears and eye wash solutions on multifocal soft contact lenses, Synthetic Route of 194491-31-1, the publication is Nippon Kontakuto Renzu Gakkaishi (2020), 62(3), 108-112, database is CAplus.

The author evaluated the effects of 3 over-the-counter (OTC) artificial tears/eyewash solutions on 6 types of 1-day disposable multifocal soft contact lenses (SCLs). One each of the etafilcon A, nelfilcon A, omafilcon A, SEED 1-day pure, delefilcon A, and nesofilcon A SCLs </div> were immersed in each of the 3 artificial tears/ eyewash solutions: Soft Santear (S), My tear CL (M), and Well Wash Eye (W). After the SCL had been immersed for 5 h in the solution, the size of the SCL was evaluated using Image J. The Etafilcon A SCL had expanded during immersion in S and M and especially during immersion in W (by 14.2%). The nelfilcon A SCL had shrunk during immersion in S and M and especially during immersion in W (by 11.8%). Although exposure of the SCLs to S, M, and W solutions during this experiment was severe compared to exposure during ordinary use of these solutions, the results of the experiment show that there is interaction between these SCLs and OTC artificial tears/eyewash solutions Therefore, SCL prescribers should be careful to evaluate the use of these OTC solutions by their patients.</div>.

Nippon Kontakuto Renzu Gakkaishi published new progress about 194491-31-1. 194491-31-1 belongs to catalysis-chemistry, auxiliary class Carboxylic Acid Salts,Amine,Aliphatic hydrocarbon chain, name is Sodium 2,2′,2”,2”’-(ethane-1,2-diylbis(azanetriyl))tetraacetate xhydrate, and the molecular formula is C3H7NO2, Synthetic Route of 194491-31-1.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Alam, Todd M. published the artcileSolid-state ¹³C CP/MAS NMR investigations of EDTA-metal complexes, Application In Synthesis of 194491-31-1, the publication is Magnetic Resonance in Chemistry (1997), 35(7), 427-431, database is CAplus.

Solid-state ¹³C CP/MAS NMR spectra are reported for different EDTA-metal complexes. The effect of metal binding on the isotropic ¹³C chem. shift and principal elements of the carboxyl ¹³C chem. shift anisotropy (CSA) tensor are discussed.

Magnetic Resonance in Chemistry published new progress about 194491-31-1. 194491-31-1 belongs to catalysis-chemistry, auxiliary class Carboxylic Acid Salts,Amine,Aliphatic hydrocarbon chain, name is Sodium 2,2′,2”,2”’-(ethane-1,2-diylbis(azanetriyl))tetraacetate xhydrate, and the molecular formula is C10H14N2Na4O9, Application In Synthesis of 194491-31-1.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia