Disodium oxalate
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| Disodium oxalate | |
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| Systematic name | Disodium oxalate |
| Other names | Disodium salt Sodium Ethanedioate Natriumoxalat Oxalic acid sodium salt |
| Molecular formula | Na2C2O4 |
| Molar mass | 133.99914 g/mol |
| Solubility in water | 3.7 g/100 ml (20°C) |
| CAS number | [62-76-0] [1] |
| Disclaimer and references | |
Disodium oxalate is a sodium salt of oxalic acid. It has the molecular formula Na2C2O4. It is a reducing agent useful for standardizing potassium permanganate (KMnO4) solutions.
In biology experiments, sodium oxalate, like citrates, can also be used to remove calcium ion (Ca2+) from blood plasma. It also prevents blood from clotting. Note that by removing calcium ions from the blood, sodium oxalate can impair brain function, and deposit calcium oxalate in the kidneys. Avoid inhalation of dust, and wear gloves, when handling this substance.
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