Sodium propanoate or Sodium Propionate is the sodium salt of propionic acid which has the chemical formula Na(C2H5COO).
ReactionsIt is produced by the reaction of propionic acid and sodium carbonate or sodium hydroxide.
It is used as a food preservative and is represented by the food labeling E E281 in Europe; it is used primarily as a mold inhibitor in bakery products. It is approved for use as a food additive in the EUUSA and Australia and New Zealand(where it is listed by its INS 281).
| Item | Specification |
| Synonym | Sodium propanoate |
| Molecular Formula | C3H5NaO2 |
| Molecular Weight | 96.06 |
| Appearance | White crystald or powder |
| Assay( as CH3CH2 COONa dried ) % | =<99.0 |
| (10 %; H2O; 20°C) | 8.0~10.5 |
| Loss on drying | =<0.0003% |
| Alkalinity(as Na2CO3) | pass test |
| Heavy metal | |
| Lead | =<0.001% |
| As( as As2O3) | =<0.0003% |
| Fe | =<0.0025% |
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