Page 86 - Praxair - Specialty Gases and Equipment Reference Guide
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Nitrogen

                                              Cryogenic Liquids                                       N     2




            Transportation                                                      (M)SDS Reference
            Information                                                         P-4630
            UN Number: 1977                                                     CAS Number
                                  United States of America  Canada  Mexico
            Shipping Name        Nitrogen,      Nitrogen,     Nitrogen,         7727 - 37 - 9 (R)
                                 Refrigerated   Refrigerated   Refrigerated     General Description
                                 Liquid         Liquid        Liquid            Colorless, odorless, nonflammable,
            Hazard Class         2.2            2.2           2.2               cryogenic liquid.
            Label                Nonflammable   Nonflammable   Nonflammable
                                 Gas            Gas           Gas


              Product/Grade  Purity    Part       Cylinder  O 2   H 2 0  THC
                                       Number
              UHP, 5.0       99.999%   NI 5.0LC   180, 230   1    3     0.5
              High Purity, 4.8   99.998%   NI 4.8LC   180, 230   5   3   –
              Concentrations given are ppm by volume unless otherwise specified.
              Maximum ppm unless otherwise noted.




              Cylinders

              Cylinder   Style           Size               Connection    Pressure   Volume   Gross Weight
                                                                                       3
                                                                                    3
              Type                       in (cm)           CGA          psig (bar)   ft  (m )   lb (kg)
              230       Portable Liquid Unit   53 x 26 (134.6 x 66)   580, 295   varies   5030 (139)   664 (301)
              180       Portable Liquid Unit   64 x 20 (162 x 50.8)   580, 295   varies   4110 (114)   557 (253)    Section B – Pure Gases



              Equipment Recommendations
              4083, 4085, 4084 and 4086 series regulators.
              Final SGE recommendation based on withdrawal rate.






                                                                                i

                                                                                See Sections F and G
                                                                                for safety and technical
                                                                                information.





            4084 and 4086 Series – Critical Purity High
            Flow Regulators for Non-Corrosive Service
            (see page E •265)










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