What combination of boric acid will give deep green colour in fountain and sparklers?

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Eero Karvinen

Hello, It would be difficult or impossible to have a green pyrotechnics by using boric acid. Its much easier to use elemental boron to get a green emission without barium. Boric acid with ethanol or methanol burns with a brillian green color but these boric acid esters are hygroscopic and liquids.

Ankush Kularkar

Yes,

BO2 gives green color

what about if we use Boron Oxalate (HBOB) which is solid. Does it will give a green color.