Neutralising Concentrated HCl

[rae]

Hi All,

Time to pick your brains again.

I have about 300ml of Conc. HCl I need to dispose of. What is the best way to do this??

Thanks in Antcipation
Lorrae

[KimFenley]

Dilute the Conc HCl to about 10-20% in plastic bucket then add Sodiun BiCarbonate. Lots of bubbles. Keep adding the BiCarb till no further bubbling.

Kim

[Jazz]

Conc. HCl must only be dispensed in a fume cupboard. Gloves that are resistant to HCl must be worn e.g. Nitrile or polyethylene-based.

Neutralise using Sodium Carbonate solution (say, 20% W/V). NB. This could generate copious quantities of CO2 Wear eye-protecting goggles.

[KimFenley]

When you add the Bi Carb or carbonate do it in small amounts at a time, as suggested in the fumehood.

Kim

[rae]

Thanks to those who replied.
It worked a treat.



Lorrae