I wanted to ask how critical the purity of the Naoh is. It is written that it should be 100%. But in the web I find mostly purities in the range from 98-99.5%. Is that an acceptable purity or should I skip these? Are there recommendations what brands to buy in Europe/Germany? Thanks for the help.
Posted Feb 8, 2021, 12:24 AM UTC
You will never find any reagent that’s 100%. Never. It’s actually impossible. If something claims to be 100%, run away. 99.5 is plenty plenty sufficient.
hehe yea no such thing as 100% or "pure" :P
1 namogram of impurity negates something from being 100%. I don't trust chemicals that say 100% either. Dodgy as!
Any impurities in NaOH should stay in aq. phase.
Bad advice....
Get better chemicals.
98% is usually fine, in most cases it just accounts for the water in it.
Check the msds
food grade I believe is 100% though you pay extra
[deleted]
NaOH is sodium hydroxide....
NaOH or Nacl...both start with Na = interchangeable /s
They are most definitely not interchangeable nacl is not even close to naoh in alkalinity
Of course not. That's why I marked it as sarcastic...
Best bet is to check the company SDS for the product in question.
It's likely just anti-caking agents that won't really hamper the process, bit there's only one way to be sure