A process for preparing high molecular weight aryl alkyl polymers is disclosed, wherein oxalic acid and paraphenylene diisocyanate are reacted in substantially stoichiometric amounts in a polar, aprotic anhydrous organic solvent at a temperature which is raised progressively at a rate of about 1 to...
R. (1996) Ozone, oxalic acid, and organic matter molecular weight—effects on coagulation. Ozone Sci Eng 18: pp. 311-324Becker, W.C. and C.R. O'Melia, Ozone, oxalic acid, and organic matter molecular weight - Effects on coagulation. Ozone-Sci. Eng., 18(4), 311-324 (1996)....
The effect of four low molecular weight organic acids on the adsorption of fluoride on soils with variable charge was investigated with a batch method. The results showed that organic acids reduced the adsorption of fluoride through competition with F - for sorption sites. The oxalic acid and mal...
pH in the 10 ~ 50 cm soil depth was decreased by 0.02 ~ 0.83 unit, and soil exchangeable Al was increased by 22.45 % ~ 34.66 % in 10 mmol/L citric,malic and oxalic acid treatments, respectively, compared with simulated acid rain treatment. It imply that low molecular weight organic ...
Stable carbon isotopic compositions of low-molecular-weight dicarboxylic acids, glyoxylic acid and glyoxal in tropical aerosols: implications for photochemical processes of organic aerosols. Tellus B 66, 23702.Wang, H. B., and K. Kawamura (2006), Stable carbon isotopic composition of low-molecular...
In this study, the effects of the surfactants sodium dodecyl sulfate, Triton X-100, and non-ionic polyacrylamide (NPAM) on oxalic acid, tartaric acid, and citric acid used to remove zinc from contaminated soi...
The high-molecular-weight group (413 KDa) of Pleurotus eryngii polysaccharide shows better antitumor effect on human hepatoma cells compared with the low-molecular-weight group (12 KDa)29. Repair mechanism of APSs on oxalate damaged cells High concentrations of oxalate caused the damage to HK-2 ...
Low-molecular-weightorganicacidsenhancethereleaseofboundPAHresiduesinsoilsYanzhengGaoa,*,XiaojiaYuana,XianghaoLina,BingqingSuna,Zh..
Low-molecular-weightorganicacidSodiumdodecylsulfateTritonX-100Soil washing is an effective approach to the removal of heavy metals from contaminated soil. In this study, the effects of the surfactants sodium dodecyl sulfate, Triton X-100, and non-ionic polyacrylamide (NPAM) on oxalic acid, ...
Low molecular weight dicarboxylicacids constitute a large fractionof atmospheric organic aerosols, which impact atmospheric radiativeforcing and hence Earth's climate. Radiocarbon (14C) is a unique approach to unambiguously distinguishing the relativecontributions of biomass-derived and fossil sources. Here,...