why do you use water & Disodium tartrate in karl fischer?

Answer Posted / lukka gowrishankar

1.0 DST is not absorb any moisture from the atmosphere in the room temperature.
2.0 DST is primary standard.
3.0 DST Had known water molecule(2H2O) and had constant water content value 15.66%
4.0 DST is easily dissolved in methanol and not degraded in methanol.

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