Assertion: oxalic acid's salt | /r/MadeOf | na
Facets:
Source sentences:
text: These terms are also used for salts containing this anion, such as sodium mesoxalate, Na 2 C 3 O 5 ; and for esters containing the −C 3 O 5 − or −O−(C=O) 3 −O− moiety, such as diethyl mesoxalate, (C 2 H 5 ) 2 C 3 O 5 .