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Disodium oxalate
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(Redirected from Sodium oxalate)
| Disodium oxalate | |
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| Other names | Oxalic acid, disodium salt Sodium ethanedioate |
| Identifiers | |
| CAS number | |
| Properties | |
| Molecular formula | Na2C2O4 |
| Molar mass | 133.99914 g/mol |
| Solubility in water | 3.7 g/100 ml (20°C) |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Disodium oxalate is a sodium salt of oxalic acid with the molecular formula Na2C2O4. It can act as a reducing agent, and it may be used as a primary standard for standardizing potassium permanganate (KMnO4) solutions.
In biology experiments, sodium oxalate, like citrates, can also be used to remove calcium ions (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.
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