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237: Formic acid sodium salt

Sodium formate

Origin:
Commercially synthesised from sodium hydroxide and carbon monoxide. Present naturally as formic acid (see 236)

Function & characteristics:
Used as a preservative against microorganisms.

Products:
Fruit juices, non-alcoholic drinks, preserved vegetables, etc.

Acceptable Daily Intake:
Up to 3 mg/kg body weight.

Side effects:
It is metabolised by the liver and excreted. High concentrations are diuretic. No side effect at the acceptable concentrations specified.

Dietary restrictions:
None � formic acid and formates can be consumed by all religious groups, vegans and vegetarians.