Ion | Concentration/mg l−1 | ||||
---|---|---|---|---|---|
Volvic® | Vittel® | Buxton® | Evian® | Tap water* | |
calcium Ca2+ | 11.5 | 91 | 55 | 78 | 102 |
magnesium Mg2+ | 8.0 | 19.9 | 19 | 24 | 8.81 |
sodium Na+ | 11.6 | 7.3 | 24 | 5 | 49.1 |
potassium K+ | 6.2 | - | 1 | 1 | n.a. |
choride Cl− | 13.5 | - | 37 | 4.5 | 73.9 |
nitrate NO3− | 6.3 | 0.6 | <0.1 | 3.5 | 20.6 |
sulfate SO42− | 8.1 | 105 | 13 | 10 | 120 |
bicarbonate HCO3− | 71.0 | 258 | 248 | 357 | n.a. |
LD50/mg kg−1 body weight | Examples | Classification |
---|---|---|
less than 25 | arsenic(III) oxide As2O3 | very toxic |
sodium cyanide NaCN | ||
thallium(I) sulfate Tl2SO4 | ||
25 to 200 | sodium nitrite NaNO2 | toxic |
sodium fluoride NaF | ||
200 to 2000 | arsenic As | harmful |
sodium nitrate NaNO3 | ||
aluminium(III) fluoride AlF3 | ||
indium(III) chloride InCl3 |
Formula and common name | Common anion name | Structure |
---|---|---|
diphosphate | ||
metaphosphate |
Formula | Oxidation number | Name |
---|---|---|
HClO4 | +7 | perchloric |
HClO3 | +5 | chloric |
HClO2 | +3 | chlorous |
HClO | +1 | hypochlorous |
Mg | −2.36 | Al | −1.68 |
Ca | −2.87 | Ga | −0.53 |
Sr | −2.90 | In | −0.34 |
Ba | −2.91 | Tl | +0.72 |