Sodium Formate 98%
Sodium formate, HCOONa, is the sodium salt of formic acid, HCOOH. It usually appears as a white deliquescent powder. Sodium formate crystallizes in a monoclinic crystal system with the lattice parameters a = 6,19 Å, b = 6,72 Å, c = 6,49 Å und β = 121.
Sodium formate is used in several fabric dyeing and printing processes. It is also used as a buffering agent for strong mineral acids to increase their pH, as a food additive (E237), and as a de-icing agent.
In structural biology, sodium formate can be used as a cryoprotectant for X-ray diffraction experiments on protein crystals,[6] which are typically conducted at a temperature of 100 °K to reduce the effects of radiation damage.
| HCOONa | |
| Molar mass | 68.007 g/mol |
| Appearance | white granules deliquescent |
| Density | 1.92 g/cm3 (20 °C) |
| Melting point | 253 °C (487 °F; 526 K) |
| Boiling point | decomposes |
| 43.82 g/100 mL (0 °C) 97.2 g/100 mL (20 °C) 160 g/100 mL (100 °C) |
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| Solubility | insoluble in ether soluble in glycerol, alcohol, formic acid |
| Acidity (pKa) | 7.0-8.5 (0.1M) |