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In the NO − 3 anion, the oxidation state of the central nitrogen atom is V (+5). This corresponds to the highest possible oxidation number of nitrogen. Nitrate is a potentially powerful oxidizer as evidenced by its explosive behaviour at high temperature when it is detonated in ammonium nitrate (NH 4 NO 3), or black powder, ignited by the shock wave of a primary explosive.
Ingesting too much nitrite and/or nitrate through well water is suspected to cause methemoglobinemia. [17] 95% of the nitrite ingested in modern diets comes from bacterial conversion of nitrates naturally found in vegetables. [18] However, potentially cancer-causing nitroso compounds are not made in the pH-neutral colon.
A small amount of the nitrate added to meat as a preservative breaks down into nitrite, in addition to any nitrite that may also be added. The nitrite then reacts with protein-rich foods (such as meat) to produce carcinogenic NOCs (nitroso compounds). NOCs can be formed either when meat is cured or in the body as meat is digested. [20]
A nitrate nitrite, ... nitrate and potassium nitrate in water solution produce the salt tripotassium tetranitratomercurate(II) nitrate K 3 [Hg(NO 2) 4]NO 3. [1]
Consequently, ammonium (NH 4 +) binds tightly to the soil, but nitrate ions (NO 3 −) do not. Because nitrate is more mobile, it leaches into groundwater supplies through agricultural runoff. Nitrates in groundwater can affect surface water concentrations through direct groundwater-surface water interactions (e.g., gaining stream reaches ...
The nitrate anion is an oxidizer, and many tests for the nitrate anion are based on this property. However, other oxidants present in the analyte may interfere and give erroneous results. Nitrate can also be detected by first reducing it to the more reactive nitrite ion and using one of many nitrite tests. [1]