Nitrogen: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 1: | Line 1: | ||
== Description == | == Description == | ||
A colorless, odorless, inert gas that composes 75.5% (by weight) of the atmosphere on earth and is an essential element in all living organisms. Nitrogen was first identified as an element in 1772 by Daniel Rutherford, Scotland. It serves as a diluent in the atmosphere and, as such, controls the rates of combustion and respiration. Nitrogen is used in the manufacture of [[ammonia%20%28anhydrous%29|Ammonia]], [[nitric%20acid|nitric acid]], nitrates, and cyanides. It is also used as an inert, oxygen-free atmosphere for the preservation of materials and the asphyxiation of insects. Liquid nitrogen is used as a coolant for food freezing processes and | A colorless, odorless, inert gas that composes 75.5% (by weight) of the atmosphere on earth and is an essential element in all living organisms. Nitrogen was first identified as an element in 1772 by Daniel Rutherford, Scotland. It serves as a diluent in the atmosphere and, as such, controls the rates of combustion and respiration. Nitrogen is used in the manufacture of [[ammonia%20%28anhydrous%29|Ammonia]], [[nitric%20acid|nitric acid]], nitrates, and cyanides. It is also used as an inert, oxygen-free atmosphere for the preservation of materials and the asphyxiation of insects. Liquid nitrogen is used as a coolant for food freezing processes, cooling electronic equipment and to kill insects via thermal shock, i.e. cryo-fumigation. | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
N; Stikstof (Ned.); azote (Fr.); Stickstoff (Deut.); azoto (It.); Nitrogênio (Port.); nitrógeno (Esp.); Kväve (Sven.) | |||
== Risks == | == Risks == | ||
* Can displace oxygen and act as an asphyxiant. | * Can displace oxygen and act as an asphyxiant. | ||
* Contact with liquid nitrogen causes immediate tissue necrosis | |||
* Airgas: [https://www.airgas.com/msds/001040.pdf SDS] | * Airgas: [https://www.airgas.com/msds/001040.pdf SDS] | ||
== Physical and Chemical Properties == | == Physical and Chemical Properties == | ||
* Inert, colorless gas, liquid or solid | |||
Slightly soluble in ethanol and liquid ammonia. Insoluble in most other liquids. | * Slightly soluble in ethanol and liquid ammonia. | ||
* Insoluble in most other liquids. | |||
* Composition = N (atomic no. 7)(atomic wt = 14.0067) | |||
* CAS = 7727-37-9 | |||
* Melting Point = -210.0 C | |||
* Boiling Point = -195.79 C | |||
== Resources and Citations == | == Resources and Citations == | ||
Latest revision as of 10:53, 8 November 2026
Description
A colorless, odorless, inert gas that composes 75.5% (by weight) of the atmosphere on earth and is an essential element in all living organisms. Nitrogen was first identified as an element in 1772 by Daniel Rutherford, Scotland. It serves as a diluent in the atmosphere and, as such, controls the rates of combustion and respiration. Nitrogen is used in the manufacture of Ammonia, nitric acid, nitrates, and cyanides. It is also used as an inert, oxygen-free atmosphere for the preservation of materials and the asphyxiation of insects. Liquid nitrogen is used as a coolant for food freezing processes, cooling electronic equipment and to kill insects via thermal shock, i.e. cryo-fumigation.
Synonyms and Related Terms
N; Stikstof (Ned.); azote (Fr.); Stickstoff (Deut.); azoto (It.); Nitrogênio (Port.); nitrógeno (Esp.); Kväve (Sven.)
Risks
- Can displace oxygen and act as an asphyxiant.
- Contact with liquid nitrogen causes immediate tissue necrosis
- Airgas: SDS
Physical and Chemical Properties
- Inert, colorless gas, liquid or solid
- Slightly soluble in ethanol and liquid ammonia.
- Insoluble in most other liquids.
- Composition = N (atomic no. 7)(atomic wt = 14.0067)
- CAS = 7727-37-9
- Melting Point = -210.0 C
- Boiling Point = -195.79 C
Resources and Citations
- MuseumPests.net: Pesticide Database
- Web Elements: Nitrogen
- Wikipedia: Nitrogen Accessed Nov 2026