Oxalic acid yog dav faib nyob rau hauv cov nroj tsuag nyob rau hauv cov xwm, feem ntau muaj nyob rau hauv daim ntawv ntawm oxalic acid ntsev. CW Scheele muaj thawj zaug tsim oxalate hauv 1776.

Oxalate yog cov kua qaub uas muaj zog tshaj plaws ntawm cov dicarboxylic acid. Dhau li ntawm muaj cov khoom siv dav dav ntawm carboxylic acid, nws kuj muaj peev xwm txo tau cov cuab yeej thiab tuaj yeem txo qis xya valence manganese rau bivalent manganese. Cov cuab yeej no feem ntau siv rau kev ntsuas ntau ntawm cov poov tshuaj permanganate.

5 C2H2O4 + 2 KMnO4 + 3 H2SO4 → K2SO4 + 2 MNSO4 + 8H2O + 10 CO2;

Oxalic acid kuj tseem tuaj yeem txo cov hlau trivalent rau hauv bivalent hlau. Vim tias qhov siab solubility ntawm cov hlau bivalent hauv dej, peb tuaj yeem siv lub hauv paus ntsiab lus no kom tshem tawm xeb ntawm cov khaub ncaws.

Oxalic acid tuaj yeem hnov ​​​​mob nrog phosphorus pentachloride los tsim phosphorus oxychloride. C2H2O4 + PCl5 → POCl3 + CO + CO2 + 2 HCL.

Oxalic acid tuaj yeem cuam tshuam nrog ntau cov hlau los tsim oxalic acid ntsev. Ntxiv nrog rau alkali hlau ntsev thiab bivalent hlau ntsev nrog tus so ntawm oxalic acid ntsev ua tsis zoo soluble hauv dej. Qee cov ntsev ntsev, txawm tias tsis zoo soluble hauv dej, tuaj yeem tsim cov complex uas yog soluble hauv dej.

Fe2 (C2O4) 3 + 3 K2C2O4 + 6 H2O →2 K3 [Fe (C2O4) 3] • 6 H2O.

Thaum cua sov, alkali hlau thiab alkaline ntiaj teb hlau oxalic acid ntsev tuaj yeem poob cov pa roj carbon monoxide thiab tsim cov carbonates nrog cov carbonate txuas ntxiv mus rau cua sov kom ntxiv decomposed rau hauv oxide thiab carbon dioxide. Cov oxalic acid ntsev ntawm nickel, cobalt thiab nyiaj thaum kawg tuaj yeem tsim cov hlau tsis yog hlau oxide.

Cov khoom decomposing ntawm oxalate yog carbon dioxide, carbon monoxide thiab dej.

Oxalate thiab oxalic acid ntsev yog tshuaj lom. Cov nas, los ntawm kev tswj qhov ncauj, muaj LD50 ntawm 2000 ~ 4000 mg / kg.