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              Material Safety Data Sheet                                               Persulfates





               NPS (SPS)

               Sodium persulfate (sodium peroxydisulfate)

                                                                              Molecular Weight = 238.13

               CAS# 7775-27-1

               technically pure, salt







Information provided by:

              Degussa-AJ (shanghai) Initiators Co., Ltd.

              Add: 7717 Hu Tai Road Post Code: 201908

              Tel: 56867000; 56863084 Fax: 56861333





Production information:

              Shipping name                  -----------Sodium Persulfate (NPS, SPS)

              Formula                        -----------Na2S2O8

              Chemical name                  -----------Sodium Peroxydisulfate





Ingredient:

              Material component             -----------Sodium persulfate

              Percent                        -----------99.0%min

              CAS#                           -----------7775-27-1

              UN classification              -----------class 5.1 (Oxidizer)

              UN#                            -----------1505

              Hazard classification:         -----------Oxidizing agent

                                                        Decomposition is accelerated by contamination of

                                                         heavy metals or heat. Generate heat, oxygen, sulfuric

                                                         acid mist and sulfurous acid gas.





Emergency and first aid procedures:

              Eyes                           -----------Wash with plenty of water for more than 15 minutes.

                                                        Obtain medical attention.

              Skin                           -----------Wash with plenty of water

              Inhalation                     -----------Move victim to fresh air. If difficulty in breathing

                                                         occurs, administer oxygen.

              Ingestion                      ----------- Drink water. Obtain medical attention







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                                                                                                    NPS (SPS)

Fire, explosion and Reactivity Data:

                 Flash point                   -----------noncombustible

                 Autoignition temperature      -----------noncombustible

                 Flammable Limits upper        -----------noncombustible

                                    Lower       -----------

                 Extinguishing media           -----------Water

                 Special protection            -----------When stored in a cool and shaded place, A decline

                                                            rate of assay is below 1%/year. Its solution is intensely

                                                            oxidizing at dissolution.





Spill and Leaking procedure:

                 Wipe out and recover it into the container.

                 Never return to the original container.

                 In case of small amount, flush with plenty of water.





Storage and handling:

                 Handling                      -----------Avoid any source of ignition.

                                                          Not leave any combustible materials

                                                          Use personal protective equipment

                 Storage                       -----------Not leave any combustible material or heavy metals

                                                          which accelerate decomposition. Avoid humidity and

                                                          store in a cool and shaded place





Exposure controls & personal protection:

                 Concentration limit           -----------none

                 Facilities                    -----------Use in well ventilated area.

                 Protective                    -----------Goggles. Rubber gloves.

                                                          If necessary, an equipment for breathing.





Physical data:

                 Decomposition temperature     -----------275â„?

                 Room temperature

                 Appearance and state          -----------white granule

                 Odor                          -----------odorless

                 Specific gravity              ----------- 2.4

                 Solubility in H2O %           -----------41%(20â„?)

                 Volatility by volume %         -----------non-volatile









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                                                                                              NPS (SPS)

Toxicological information:

               Acute toxicity; LD50=226mg SPS/kg Oral Mouse 1)

               LD100=178 mg SPS/kg intravenous injection    2)





Ecological information:

               Fish toxicity





Disposal consideration:

               Follow the guidance in “handing & Storage�. Before disposal, dissolve in water decompose

               with agent as Sodium sulfite. Dispose in accordance with waste water standards.





Transport information:

               Land                        -----------Avoid contact with the materials which accelerate

                                                       decomposition.

               Marine                      -----------Use approved container.





Regulatory information:

               IMDG Code (international maritime Dangerous Goods Code)

               Class 5.1 Oxidizing agents

               UN No. 1505





Other:

               Further information          -----------Degussa-AJ (shanghai) Initiators Co., Ltd.

                                                       7717 Hu Tai Road 201908

                                                       Tel: 021-56867000





                Notice: The information in this MSDS is prepared based on the data. Information as of

               present. But special care must be taken with respect to further special safely handling and

               use.









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