vertical integration. Merger of companies at different stages of production and/or distribution in the same industry. When a company acquires its input supplier it is called backward integration. When it acquires companies in its distribution chain it is called forward integration.
What is Nitrite. Nitrites is also a polyatomic ion containing N and O atoms, where Nitrogen has an oxidation number of +3. The Nitrite group contains one Nitrogen atom and two Oxygen atoms and is represented by the molecular formula, NO2-. The O-N-O bond angle is roughly around 120Â°.
1 Nitrite is unstable and quickly reacts with other compounds.  Levels of nitrate can be expressed in either of two ways: ânitrate as nitrogenâ (symbol: NO3-N) or simply as nitrate (NO3). To convert NO3-N to NO3 in parts per million (ppm, or mg/L), multiply NO3-N by 4.42.