How do I calculate concentration of hydrogen peroxide?

[ian_m]

You must be from country that has different rules (Australia ?, I think hasn't adopted the 12% rule).

In the UK, the same OxyOplus from Growth Technology is only 17.5%.


Which is very interesting as a member of the UK public wishing to get access to hydrogen peroxide above 12% must have a valid EPP (Explosives Precursors and Poisons) license. It is an offence to attempt to acquire or possess above 12% without a license. I don't think getting an EPP license is hard, proof of who you are and £39.50. The regulations below....

 

[zozo]

Initialy i didn't read correctly, we have webshops selling 50% but not without license..

EU regulation It's this one.. 🙂
https://eur-lex.europa.eu/eli/reg/2013/98/oj

In the UK, the same OxyOplus from Growth Technology is only 17.5%.

Also in my country their are reports of shops not obliging this EU law. Mainly the shops with dental care products import from outside EU and sell it on.

 

[ian_m]

They did try to add potassium and sodium nitrate to the list, but they was removed as they are used in meat preservation, hydroponics and specialist fertiliser all areas where controlled legislation would make existing usage difficult and more importantly very hard to enforce/verify. Also there was no proof of misuse of nitrates.

 

[rebel]

Thanks @doylecolmdoyle , very interesting. I need to hunt around for that brand.

For teeth, carbamide peroxide is better than hydrogen peroxide AFAIK. I am no dentist tho.