A table of the molecular weights of the ion species.
A data frame with 2 columns:
- chloride
Chloride weight = 35.4527
- nitrate
Nitrate weight = 62.0049
- sulfate
Sulfate weight = 96.064
- sodium
Sodium weight = 22.989768
- potassium
Potassium weight = 39.0983
- calcium
Calcium weight = 40.078
- magnesium
Magnesium weight = 24.305
