Measuring Calc. and Mag... Suspended particles and residue

[SereneAquatic]

Two quick questions...

1. I notice suspended particulates in the big Ca titrant that weren't there before. It's this bad? Expired? Contaminated?

2. I always seem to have residue in the Mg vial. I labeled them and always use the same one, and even rinsing with RODI water doesn't fully clean it. How can I ensure my vials are clean each time so as not to get incorrect results?

Thanks in advance!

Sent from my SM-G950U using Tapatalk

 

[Vinny Kreyling]

I will occasionally soak my vials in vinegar for a few minutes.
As far as the floaters i would ask Red Sea.

 

[outssider]

I have particles in my ca reagent too ! doesn't seem to effect the results....It's been that way since it was new ….cleaning the magnesium vial ? I tried vinegar and it didn't quite cut the mustard !.....I added a bit of muriatic acid to the vinegar and that cleaned the vial fast....