| item |
index |
|
| 98 type |
97 type |
|
| nitrate content % ≥ |
98.0 |
97.0 |
| nitrite content % ≤ |
0.50 |
|
| sulfuric acid ①content % ≤ |
0.08 |
0.10 |
| ignition residue %≤ |
0.02 |
|
| note: ①concentrated nitric acid obtained by sulfuric acid concentration should control the content of sulfuric acid, other processing method are not controlled |
||
packaging, transportation and storage:
concentrated nitric acid should be installed in containers made of aluminum or c4 steel, which are resistant to concentrated nitric acid corrosion. during transportation, it should be protected from exposure to the sun and violent impact. concentrated nitric acid should be stored separately in the second-level refractory grade storage area with low temperature drying and ventilation to prevent direct sunlight exposure. it shall not be mixed with any kind of acid, alkali, organic matter, oxidant, inflammable substance or toxic substance.