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EC number: 212-769-1
CAS number: 868-14-4
Tartaric acid and its salts are solid at 1013 hPa.
A collection of the melting point values was performed for tartaric acid
and its salts (i.e. monosodium, monopotassium, sodium potassium, sodium,
potassium and calcium tartrate). All found values are listed below.
Range of melting point (°C)
168 - 171
168 - 172
170 - 206
140 - 147
potassium hydrogen tartrate
potassium sodium tartrate
70 - 100
sodium hydrogen tartrate
Based on melting point values, tartaric acid and its salts are solid at
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