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Nitrate anion.svg
Molecular formula NO
Molar mass 62.0049 g mol-1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Nitrate (NO31-) is a polyatomic ion. It is made up of one nitrogen and three oxygen atoms. It is part of many important molecules. Potassium nitrate is a common nitrate, used in fertilizers because plants need nitrates to live and grow. Some nitrates are explosive. People make large amounts of nitrates from ammonia. Nitrates are similar to nitrites. Many metal nitrates with thermal decomposition makes oxygen and metal nitrate.

Nitric acid has the formula HNO3 and has no overall charge, because the hydrogen ion is positive.