parameter rate |
chemically pure |
pure for testing |
rate/pure |
sodium nitrite (NaNo2), min |
99 | 99 | 98,5 |
insoluble, max |
0,002 | 0,005 | 0,01 |
chlorides (Cl), max |
0,005 | 0,01 | 0,01 |
sulphates (SO4) |
0,005 | 0,01 | 0,02 |
heavy metalls (Pb), max |
0,0002 | 0,0005 | 0,001 |
iron (Fe), max |
0,0002 | 0,0004 | 0,001 |
potassium (K), max |
0,001 | 0,005 | 0,01 |
calcium (Ca), max |
0,002 | not rated |
not rated |
arsenic (As), max |
0,00004 |
not rated |
not rated |