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Nitrogen liquid (technical), GOST 9293 – 74 with amendment No. 3 buy in Navoi
Buy Nitrogen liquid (technical), GOST 9293 – 74 with amendment No. 3
Nitrogen liquid (technical), GOST 9293 – 74 with amendment No. 3

Nitrogen liquid (technical), GOST 9293 – 74 with amendment No. 3

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Technical characteristics
  • BrandАО НАВОИЙАЗОТ
  • Country of manufactureUzbekistan
Description
Liquid nitrogen is applied as coolant to cryotherapy.

Industrial use of gaseous nitrogen is caused by its inert properties, interferes with oxidation, rotting. In petrochemistry nitrogen is applied to a purge of tanks and pipelines, check of operation of pipelines under pressure, increases in development of fields. In mining business nitrogen can be used for creation in mines of the explosion-proof environment, for a raspiraniye of layers of breed. In production of electronics nitrogen is applied to a purge of the areas which are not allowing availability of the oxidizing oxygen. If in the process which is traditionally taking place with air use, oxidation or rotting are negative factors — nitrogen can successfully replace air.

Important scope of nitrogen is its use for further synthesis of the most various connections containing nitrogen such as ammonia, nitrogen fertilizers, explosives, dyes, etc.

Nitrogen is applied in chemical industry to receiving synthetic ammonia, to creation of inert environments, purges and fire extinguishing.

In normal conditions nitrogen - colourless gas, flavourless, we will dissolve in water a little.
Packing, marking, transportation and storage of gaseous and liquid technical nitrogen, nitrogen of the increased purity and nitrogen of special purity - in accordance with GOST 26460-85, at the same time:
nominal pressure of nitrogen at 20 °C in cylinders and autorecipients (15,0±0,5) MPas (150±5) kgfs/cm2) or (20,0±1,0) MPas (200±10) kgfs/cm2).

In normal conditions nitrogen – colourless gas, flavourless, we will dissolve in water a little

Main physical and chemical properties

Name

Indicator

1.

Relative molecular weight

28

2.

Volume share of nitrogen in atmospheric air

78,09%

3.

Gas volume from 1 liter of liquid

0,646 m3

4.

Density of gaseous nitrogen

1,25 kg/m3

5.

Density of liquid nitrogen

808 kg/m3

6.

Boiling temperature at 0,1 MPas

minus 196 °C

7.

Melting temperature at 0,1 MPas

minus 210 °C

Technical characteristics

Name of an indicator

Norm for brand of gaseous and liquid nitrogen

special purity

the increased purity

technical

1st grade

2nd grade

1st grade

2nd grade

1st grade

2nd grade

1.

Volume fraction of nitrogen, %, not less

99,999

99,996

99,99

99,95

99,6

99,0

2.

Volume fraction of oxygen, %, no more

0,0005

0,001

0,001

0,05

0,4

1,0

3.

Volume fraction of water vapor in gaseous nitrogen, %, no more

0,0007

0,0007

0,0015

0,004

0,009

Passes test

4.

Content of oil in gaseous nitrogen

Is not defined

Passes test

5.

Content of oil, mechanical impurity and moisture in liquid nitrogen

Passes test

6.

Volume fraction of hydrogen, %, no more

0,0002

0,001

0,0002

7.

Volume fraction of the sum carboniferous connection in terms of CH4, %, no more

0,0003

0,001

0,0003

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Nitrogen liquid (technical), GOST 9293 – 74 with amendment No. 3
Nitrogen liquid (technical), GOST 9293 – 74 with amendment No. 3
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