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Quality standard of concentrated nitric acid: GB/T 337.1-2002
Quality standard of dilute nitric acid: GB/T 337.2-2002
Molecular formula: HNO3
Property: colorless or light yellow transparent liquid, it is irritating and corrosive.
Uses: it can be widely used in fertilizer, national defense, metallurgy, chemical fiber, printing and dyeing, pharmaceutical and other industries.
Packing, storage and transportation: Concentrated nitric acid is packed by aluminum vessel, dilute nitric acid is packed with stainless steel vessel. Separate from saw dust, straw, paper and other organic matters.
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Item |
Index |
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98 acid |
97 acid |
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Mass fraction of nitric acid (HNO3) ≥ |
98.0 |
97.0 |
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Mass fraction of nitrous acid (HNO2) ≤ |
0.50 |
1.0 |
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Mass fraction of sulfuric acid (H2SO4) ≤ |
0.08 |
0.10 |
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Mass fraction of ignition residue ≤ |
0.02 |
0.02 |
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