Confirming Salinity Between Tools - Hanna Salinity Tester

[fandaga]

Randy, do you have any concern with the water content of the Morton salt used to prepare the calibration standard?

 

[Randy Holmes-Farley Verified Community Expert]

Randy, do you have any concern with the water content of the Morton salt used to prepare the calibration standard?

It is fine to bake it if that’s a concern, but sodium chloride does not form hydrates the way many salts do. Any moisture in it is just bulk water toighing the salt grain surfaces, which is a much more limited situation requiring very high humidity to remain, compared to moisture in a seawater salt mix.