Flame retardant properties of citric acid

[aim1732]

I am planning to use natural sources of citric acid-lemons preferably-to demonstrate a flame retardant mixture using chiefly sodium benzoate(preservative) and ammonium phosphate besides citric acid.Will a natural source work? I suspect the other chemicals in the lemon extract will spoil the demonstration by interfering in the working of the other ingredients.Any help is deeply appreciated.

 

[lightarrow]

The best, and quicker answer comes from an experiment only. It's very difficult to answer you theorically.