winemaker_3352
Senior Member
- Joined
- Feb 21, 2010
- Messages
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Does anybody know what the shelf life is for Sodium Hydroxide and Phenolphthalein??
I am getting some off readings from my TA test kit - I am waiting on my PH meter - should be here next week.
Normality = .10
NaOH used = 1.9ml
Sample Used = 3ml
TA instructions say:
Sample used X .25 = .475%
But using this equation:
i get - .57%
Not sure what to believe here...
I am getting some off readings from my TA test kit - I am waiting on my PH meter - should be here next week.
Normality = .10
NaOH used = 1.9ml
Sample Used = 3ml
TA instructions say:
Sample used X .25 = .475%
But using this equation:
i get - .57%
Not sure what to believe here...