Industrial chemistry
- GASEOUS NITROGEN
- COMMERCIAL-GRADE LIQUID AMMONIA
- GASEOUS AMMONIA
- COMMERCIAL-GRADE AQUA AMMONIA
- LIQUID CARBON DIOXIDE
- COMMERCIAL-GRADE SYNTHETIC HYDROCHLORIC ACID
- COMMERCIAL-GRADE CAUSTIC SODA (GRADE RD)
- SODIUM HYPOCHLORITE
- GRADE SODIUM HYPOCHLORITE TU
- LIQUID CHLORINE
- PROCESS OXYGEN GAS
GASEOUS NITROGEN
DSTU GOST 9293:2009 (ISO 2435-73)
Chemical formula N2
MaiN properties and field of usage
Gaseous nitrogen is an odourless and colourless inert gas with 1,25046 kg/m3 density under 0°C and pressure of 760 mm Hg.
It is used for creation of inert atmosphere during production, storage and transportation of easily oxidized products, in the high-temperature processing of the metals not interacting with nitrogen, for preservation of the closed metal tanks and pipelines and for other purposes.
Physical and chemical indices
1st rate 2nd chop Volume fraction of nitrogen, %, not less 99,6 99,0 Volume fraction of oxygen, %, not more 0,4 1,0 Volume fraction of water vapour in a gaseous nitrogen, % ,not more 0,009 should pass tests according to p.3.6. of DSTU GOST 9293:2009 (ISO 2435-73)
Notes:
1. Index of paragraph 1 in the table includes admixtures of inert gases (argon, neon, helium).
2. According to agreement with consumer volume fraction of water vapour more than 0,009% in pipeline-transported gaseous nitrogen of 1st rate is allowed.
package
Gaseous nitrogen is delivered by pipeline. Pressure should be agreed with consumers.