These files contain the second set of corrections to 2nd metal constant error. New names are used with an embedded date. DO compare the results from the new and old files of constants to see where they may have affected your own calculations.
Here is the link to the latest contants which contain two files of constants in two formats:
Standard Set [most common chelators and metals] in TCM and CCM formats
Extended Set [additional metals often asked for] in TCM and CCM formats
I am now labeling the constants files starting with CMC for chelator-metal-constants and then the next 4 characters will say the month and year of release. Finally an "S" or "E" for which set. So the above mentioned constants will be CMC1002S.TCM, CMC1002S.CCM, CMC1002E.TCM and CMC1002E.CCM
ALL CONSTANTS ARE TAKEN FROM THE MOST RECENT VERSION OF THE NIST DATABASE AND THEN CORRECTED, IF POSSIBLE, TO FIT THE MAXC FORMAT
You can get a preview of the constants in a large table here
If you want specific metals and chelators in a file of constants and do not want to try and figure this out yourself, I will try and find the constants and construct the file for you [It will then be posted here for others as well]. Not all combinations are possible. A request for Cu1 came in recently, but there are no constants for Cu1 in the NIST database that I could find.
SOURCES OF CONSTANTS
NIST Critical Stability Constants, set of 2 disks [DOS and Windows] for $240. Covers most of the constants in Martell & Smith.
Snail mail to:
NIST Standard Reference Database
Building 820 Room 113
Gaithersburg, MD 20899
FAX (301) 926-0416
Info: (301) 975-2208
They accept VISA, MasterCard, PO's
I have this program. It complements, but does not replace Martell & Smith..
information for its fluorescent probes at:
I did some work on getting these into MAXC format.
Magnesium indicators and their constants are on this page.