Problems in preparing saturated sodium hydroxide solution
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It was prepared according to national standard methods and stored in a polyethylene plastic bottle; why isn’t it clear even after a month?
Is it suitable to store it in polyethylene plastic bottles?
What does this have to do with polyethylene plastic bottles?
Is the sodium hydroxide of analytical grade?
It is of analytical purity; the reason has been identified – the sodium hydroxide reagent was defective. Using reagent from Sinopharm resolved the issue. Thank you
The supernatant can be collected, but the precipitate should not be used