Yellow EDTA ph8, 0.5M

[chovek69]

On Jul 21, 9:55 pm, Sharon Rho <janshar... from yahoo.com> wrote:
> Has anyone had problems with EDTA turning a clear yellow solution? I used the same protocol that others in the lab used: 186.1 g of EDTA, add 500 ml of distilled water, then add NaOH pellets until a pH of 8 is reached...but it still turns out yellow. Does anyone know how to solve the problem? Thanks.
>  

I suppose the EDTA powder is old...Is it clearly white or is
yellowish ?