Chemical Stability and Compatibility - Mercury (Hg) stability at 1000 ppm
I would like a standard that contains all of the following elements at 1000 mg/L (ppm), but we have experienced problems with Hg, in that its concentration seems to decrease with time. Would Hg be stable in this standard? (Li), (Be), (Sc), (V), (Cr), (Mn), (Co), (Ni), (Cu), (As), (Rb), (Sr), (Ag), (Cd), (In), (Cs), (Ba), (Hg), (Tl), (Pb), (Bi), (Th), (La), (Ce), (Pr), (Nd), (Dy), (Er), (Eu), (Gd), (Ho), (Lu), (Sm), (Tb), (Tm), (Y), (Yb)
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admin
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Our data indicate that Hg at this concentration in a HNO3 matrix and packaged as recommended (LDPE) will be chemically stable for years, and we expect no stability problems. Regarding the comment about Hg being unstable, lower concentrations can exhibit stability issues due to matrix and packaging, and our website has detailed information (http://inorganicventures.com/mercury-chemical-stability). |