4.The Investigation of the Complexometric Titration Of Copper With Eth ylene-diaminetetra-n-Propionic Acid EDTP)Ⅲ. The Potentiometric Titration Of Copper-Using Copper Selective Electrod as Indication Electrode
6.Study on the Behaviors of Hydrated Oxide of Terbium(Ⅳ)in Various Acid Solutions ⅡThe behaviors in formic acid, acetic acid,Propionicacid. bulyric acid. valeric acid and lactic acid
7.Propionicacid was converted to acid chloride, which was α-brominated ,condensed with glycine,reacted with sodium disulfide,and then reduced with zinc powder to give tiopronin.
8.With acetate as starting materials, alcohol as solvent, diethylenetriamine and propionicacid as complexing agents, stable YBa_2Cu_3O_(7-δ)(YBCO)sol was prepared.
9.This paper deals with the application of a Ni/C catalyst to the reaction for synthetising propionicacid and ethyl propionic by vapor phase carbonylation of ethanol.
10.4 kinds of low carbon organic acid (acetic acid,propionicacid, butyric acid and isoamyl acid) and a kind of low carbon alcohol (ethanol) are discovered in HP fermentative liquid,with the total acid content of( 9.9158)mmol/L and alcohol content of 16.52mmol/L.
