Chemicals
TopGeneral Information

Cream of tartar is a common food additive and a by-product from winemaking.[1]
TopChemical & Physical Information
| Trivial name | Cream of tartar |
| Chemical name | Potassium bitartrate |
| Other names | Wijnsteen (NL,BE) |
| Type of chemical | Ionic compound (salt) |
| Chemical formula | KC4H5O6 |
| CAS number | 868-14-4 |
| Density | 1.954 g·cm-3 |
| Molar mass | 188.177 g·mol-1 |
| Melting point | 250 °C with decomposition |
| Boiling point | n/a |
| Soluble | In water |
| Solubility (water, 20 °C) | 5.3 g·L-1 ![]() |
| Crystal system | Orthorhombic |
| Appearance | White crystalline powder |
| Colour | White |
| Safety summary | Safe |
| Safety data | MSDS |
| Storage | Dry |
| Extra | - |
Photos
(3 cm)
Sources
[1] Wikipedia
[2] Specimen from my personal collection, photo taken by me.
[3] Mullin J.W. - Crystallization, 2001









