Ordinary high purity industrial gas

Position : Index > Ordinary high purity industrial gas


Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first. The name nitrogen was suggested by Jean-Antoine-Claude Chaptal in 1790, when it was found that nitrogen was present in nitric acid and nitrates; this name derives from the Greek roots νἰτρον "nitre" and -γεννᾶν "to form". Antoine Lavoisier suggested instead the name azote, from the Greek άζωτικός "no life", as it is an asphyxiant gas; his name is instead used in many languages, such as French, Russian, and Turkish, and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds.

Appearance : Liquefied gas. Colorless. Odor : No odor warning properties. Odor threshold : No data available. pH : Not applicable. Melting point/range : -346 °F (-210 °C) Boiling point/range : -321 °F (-196 °C) Flash point : Not applicable. Evaporation rate : Not applicable. Upper/lower explosion/flammability limit : No data available. Vapor pressure : Not applicable. Water solubility : 0.02 g/l Relative vapor density : 0.97 (air = 1) Relative density : 0.8 (water = 1) Partition coefficient (n-octanol/water) : Not applicable. Auto-ignition temperature : No data available. Decomposition temperature : No data available. Viscosity : Not applicable. Molecular Weight : 28 g/mol.

Hazards & Transportation
Contains gas under pressure; may explode if heated. Asphyxiant in high concentrations.
Hazard Statements
Nitrogen (Refrigerated) H281: Contains refrigerated gas; may cause cryogenic burns or injury. May displace oxygen and cause rapid suffocation.

Purity 99.999% 99.9995%
Phase Gas Gas
Valve Connection CGA-580 CGA-580
Impurity Level
Oxygen (O2) ≤ 5.00ppm ≤ 1.00ppm
Moisture (H2O) ≤ 2.58ppm ≤ 2.58ppm
Carbon Monoxide (CO) ≤ 1.00ppm ≤ 1.00ppm
Carbon Dioxide (CO2) ≤ 1.00ppm ≤ 1.00ppm
Total Hydrocarbon as Methane (THC) ≤ 1.00ppm ≤ 1.00ppm
Hydrogen (H2) ≤ 1.00ppm ≤ 1.00ppm


NEXT:Carbon dioxide

Copy right © 2018 Wuxi Gas Co., Ltd. All Rights Reserved