Sodium oxalate

It is only very rarely found and restricted to extremely sodic conditions of ultra-alkaline pegmatites.

Alternatively, it can be produced by decomposing sodium formate by heating it at a temperature exceeding 360 °C.

It is desirable that the temperature of the titration mixture be greater than 60 °C to ensure that all the permanganate added reacts quickly.

It can cause burning pain in the mouth, throat and stomach, bloody vomiting, headache, muscle cramps, cramps and convulsions, drop in blood pressure, heart failure, shock, coma, and possible death.

Sodium oxalate, like citrates, can also be used to remove calcium ions (Ca2+) from blood plasma.

Disodium oxalate
Disodium oxalate
NFPA 704 four-colored diamond Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine Flammability 0: Will not burn. E.g. water Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code