Sodium tartrate
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Sodium tartrate | |
---|---|
Systematic name | 2.3-dihydroxy sodium succinate |
Other names | SAL tartar disodium tartrate sodium tartrate dihydrate disodium salt dihydrate butanedioic acid |
Molecular formula | Na2C4H4O6 |
Molar mass | 230.08 g/mol |
Appearance | white crystals |
CAS number | 868-18-8 |
Properties | |
Solubility in water | 29 g/100 ml (6 °C) |
Melting point | 150°C |
Sodium tartrate (Na2C4H4O6) is used as an emulsifier and a binding agent in food products such as jellies, margarine, and sausage casings.
Because its crystal structure captures a very precise amount of water, it is also a common primary standard for Karl Fischer titration, a common technique to assay water content.