Formic acid as a preservative

LC2.4.2.1

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Description

Due to its disinfecting properties, formic acid is an excellent preservative. It was used throughout the EU as a preservative with the number E 236 for food until 1998. In the meantime, formic acid has been banned as a preservative in food. Nevertheless, this use of the carboxylic acid can be demonstrated in the laboratory. In this experiment, the students will learn how juice is preserved with the preservative formic acid.

Components of equipment sets

1	6703110 4	Formic acid, 98 % - 100 %, 250 ml Danger H226 H314 H331 H302 H290 EUH071
1	6753410 4	Water, pure, 5 l
1	667057 4	Test tube rack metal, 20 mm Ø
1	30945 4	Universal pencil
1	665997 4	Graduated pipette 10 ml
1	666003 4	Pipetting ball (Peleus ball)
1	6659541 8	Dropper bulb
1	6659531 4	Dropping pipette 150 mm x 7 mm Ø
2	6640421 4	Test tube Fiolax 16 mm x 160 mm
1	667253 4	Rubber stopper solid, 14...18 mm Ø
1	610010 8	Laboratory safety goggles
1	667609 4	Safety gloves, nitrile rubber, size 8
1	6753550 4	Cotton wad, 200 g

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Formic acid as a preservative

Description

Components of equipment sets

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