Material Safety Data Sheet                           
Sodium azide                                                                    
MSDS# 20960                                                                     
             Section 1 - Chemical Product and Company Identification            
MSDS Name:                                                                      
     Sodium azide                                                               
Catalog Numbers:                                                                
     19038-0000, 19038-0050, 19038-5000, BPE922I-500, S/2360/48, S/2360/53,     
     S/2380/48, S/2380/53                                                       
     Sodium salt of hydrazoic acid; Smite; Azium.                               
Company Identification: Fisher Scientific UK                                    
                        Bishop Meadow Road, Loughborough                        
                        Leics. LE11 5RG                                         
For information in Europe, call:(01509) 231166                                  
Emergency Number, Europe:01509 231166                                           
               Section 2 - Composition, Information on Ingredients              
CAS#:          7732-18-5                                                        
Chemical Name: Water                                                            
EINECS#:      231-791-2                                                         
Hazard Symbols:                                                                 
Risk Phrases:                                                                   
CAS#:          26628-22-8                                                       
Chemical Name: Sodium azide                                                     
%:             99+                                                              
EINECS#:      247-852-1                                                         
Hazard Symbols:                                                                 
Risk Phrases:                                                                   
Text for R-phrases: see Section 16                                              
Hazard Symbols:                                                                 
 T+ N                                                                           
Risk Phrases:                                                                   
 28 32 50/53                                                                    
                       Section 3 - Hazards Identification                       
                               EMERGENCY OVERVIEW                               
Very toxic if swallowed. Contact with acids liberates very toxic                
gas. Very toxic to aquatic organisms, may cause long-term adverse               
effects in the aquatic environment.                                             
Potential Health Effects                                                        
          Causes eye irritation.                                                
          Causes skin irritation. May be fatal if absorbed through the skin.    
          Substance is readily absorbed through the skin.                       
          May be fatal if swallowed. May cause irritation of the digestive      
          tract. May cause low blood pressure, rapid heartbeat, skin            
          discoloration, and possible coma.                                     
          May be fatal if inhaled. May cause severe irritation of the           
          respiratory tract with sore throat, coughing, shortness of breath     
          and delayed lung edema.                                               
          May cause liver and kidney damage. Repeated exposure may cause        
          damage to the spleen. Laboratory experiments have resulted in         
          mutagenic effects. Chronic exposure may cause blood effects. Animal   
          studies have reported the development of tumors.                      
                         Section 4 - First Aid Measures                         
          Immediately flush eyes with plenty of water for at least 15 minutes,  
          occasionally lifting the upper and lower eyelids. Get medical aid     
          Get medical aid immediately. Immediately flush skin with plenty of    
          water for at least 15 minutes while removing contaminated clothing    
          and shoes. SPEEDY ACTION IS CRITICAL!                                 
          POISON material. If swallowed, get medical aid immediately. Only      
          induce vomiting if directed to do so by medical personnel. Never give 
          anything by mouth to an unconscious person.                           
          Remove from exposure and move to fresh air immediately. If breathing  
          is difficult, give oxygen. SPEED IS ESSENTIAL, OBTAIN MEDICAL AID     
          IMMEDIATELY. Do not use mouth-to-mouth resuscitation if victim        
          ingested or inhaled the substance; induce artificial respiration      
          with the aid of a pocket mask equipped with a one-way valve or other  
          proper respiratory medical device.                                    
Notes to Physician:                                                             
          Treat symptomatically and supportively.                               
                       Section 5 - Fire Fighting Measures                       
General Information:                                                            
          As in any fire, wear a self-contained breathing apparatus in          
          pressure-demand, MSHA/NIOSH (approved or equivalent), and full        
          protective gear. Containers may explode in the heat of a fire. Forms  
          explosion sensitive compounds with some metals such as lead and       
          copper. Form hydrazoic acid vapor in contact with acid or water.      
          Hydrazoic acid vapor is highly toxic and a dangerous explosive.       
          Hydrazoic acid is shock sensitive.                                    
Extinguishing Media:                                                            
          Do NOT use water directly on fire. Use dry chemical.                  
                     Section 6 - Accidental Release Measures                    
General Information:                                                            
          Use proper personal protective equipment as indicated in Section 8.   
          Vacuum or sweep up material and place into a suitable disposal        
          container. Wear a self contained breathing apparatus and appropriate  
          personal protection. (See Exposure Controls, Personal Protection      
          section). Avoid generating dusty conditions. Provide ventilation.     
          Evacuate unnecessary personnel. Do not flush down the drain. Over a   
          period of time, sodium azide may react with copper, lead, brass, or   
          solder in plumbing systems to form an accumulation of the highly      
          explosive compounds of lead azide and copper azide. Do not let this   
          chemical enter the environment.                                       
                        Section 7 - Handling and Storage                        
          Minimize dust generation and accumulation. Do not get in eyes, on     
          skin, or on clothing. Do not ingest or inhale. Use only in a          
          chemical fume hood. Acids should not be used around this material     
          unless absolutely necessary and then only after careful planning.     
          Contact with acids liberates toxic gas.                               
          Store in a cool, dry place. Store in a tightly closed container.      
          Keep away from acids. Do not store in metal containers.               
               Section 8 - Exposure Controls, Personal Protection               
Engineering Controls:                                                           
          Facilities storing or utilizing this material should be equipped      
          with an eyewash facility and a safety shower. Use only under a        
          chemical fume hood.                                                   
Exposure Limits                                                                 
CAS# 7732-18-5:                                                                 
CAS# 7782-79-8:                                                                 
Germany: 0.1 ppm TWA (exposure factor 2); 0.18 mg/m3 TWA (exposure              
factor 2)                                                                       
Netherlands: 0.1 ppm MAC; 0.18 mg/m3 MAC                                        
Spain: 0.1 ppm VLA-EC; 0.18 mg/m3 VLA-EC                                        
CAS# 26628-22-8:                                                                
United Kingdom, WEL - TWA: 0.1 mg/m3 TWA (as NaN3)                              
United Kingdom, WEL - STEL: 0.3 mg/m3 STEL (as NaN3)                            
France - VME: 0.1 mg/m3 VME (restrictive limit)                                 
France - VLE: 0.3 mg/m3 VLCT (restrictive limit)                                
Germany: 0.2 mg/m3 TWA (exposure factor 2)                                      
Malaysia: 0.29 mg/m3 Ceiling (as NaN3); 0.11 ppm Ceiling (as                    
hydrazoic acid vapour)                                                          
Netherlands: 0.3 mg/m3 STEL                                                     
Netherlands: 0.1 mg/m3 MAC                                                      
Spain: 0.1 mg/m3 VLA-ED (indicative limit value)                                
Spain: 0.3 mg/m3 VLA-EC (indicative limit value); 0.1 ppm VLA-EC                
(indicative limit valu                                                          
Personal Protective Equipment                                                   
                       Wear appropriate protective eyeglasses or chemical       
                       safety goggles as described by OSHA's eye and face       
                       protection regulations in 29 CFR 1910.133 or European    
                       Standard EN166.                                          
                       Wear appropriate protective gloves to prevent skin       
                       Wear appropriate protective clothing to prevent skin     
                       Follow the OSHA respirator regulations found in 29       
                       CFR 1910.134 or European Standard EN 149. Use a          
                       NIOSH/MSHA or European Standard EN 149 approved          
                       respirator if exposure limits are exceeded or if         
                       irritation or other symptoms are experienced.            
                  Section 9 - Physical and Chemical Properties                  
Physical State:             Crystalline powder                                  
Color:                      white                                               
Odor:                       odorless                                            
pH:                         10 (1M aq.sol.)                                     
Vapor Pressure:             Not available                                       
Viscosity:                  Not available                                       
Boiling Point:              300 deg C @ 760 mmHg ( 572.00F)                    
Freezing/Melting Point:     275 deg C (decom)                                   
Autoignition Temperature:   Not available.                                      
Flash Point:                Not applicable.                                     
Explosion Limits: Lower:Not available                                           
Explosion Limits: Upper:Not available                                           
Decomposition Temperature:  Not available                                       
Solubility in water:        Soluble                                             
Specific Gravity/Density:   1.850                                               
Molecular Formula:          N3Na                                                
Molecular Weight:           65.01                                               
                      Section 10 - Stability and Reactivity                     
Chemical Stability:                                                             
          Heating may cause an explosion. Contact with acid liberates gas.      
          Heat sensitive                                                        
Conditions to Avoid:                                                            
          Incompatible materials, dust generation, moisture, metals, strong     
          acids, temperatures above 250C.                                      
Incompatibilities with Other Materials                                          
          Metals, acids, acid chlorides, halogenated hydrocarbons.              
Hazardous Decomposition Products                                                
          Nitrogen oxides, sodium oxide, hydrazoic acid.                        
Hazardous Polymerization                                                        
          Will not occur.                                                       
                     Section 11 - Toxicological Information                     
CAS# 7732-18-5: ZC0110000                                                       
CAS# 7782-79-8: MW2800000                                                       
CAS# 26628-22-8: VY8050000                                                      
RTECS: CAS# 7732-18-5: Oral, rat: LD50 = >90                                    
RTECS: CAS# 7782-79-8: Inhalation, mouse: LC50 = 34                             
mg/m3; Oral, rat: LD50 = 33 mg/kg;.                                             
RTECS: CAS# 26628-22-8: Inhalation, mouse: LC50 = 32400                         
ug/m3; Inhalation, rat: LC50 = 37 mg/m3; Oral, mouse: LD50 =                    
27 mg/kg; Oral, rat: LD50 = 27 mg/kg; Skin, rabbit: LD50 = 20                   
mg/kg; Skin, rat: LD50 = 50 mg/kg;.                                             
       Water -                                                                  
Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.                  
       Hydrazoic acid -                                                         
Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.                  
       Sodium azide -                                                           
Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.                  
          See actual entry in RTECS for complete information.                   
                       Section 12 - Ecological Information                      
Fish: Rainbow trout: LC50 = 0.8-1.6 mg/L; 96 Hr.; 13 degrees                    
CFish: Bluegill/Sunfish: LC50 = 0.7-0.8 mg/L; 96 Hr.; 18 degrees                
Harmful to aquatic life in very low concentrations. Do not empty                
into drains.                                                                    
                      Section 13 - Disposal Considerations                      
Dispose of in a manner consistent with federal, state, and local regulations.   
                       Section 14 - Transport Information                       
     Shipping Name:           SODIUM AZIDE                                      
     Hazard Class:            6.1                                               
     UN Number:               1687                                              
     Packing Group:           II                                                
     Shipping Name:           SODIUM AZIDE                                      
     Hazard Class:            6.1                                               
     UN Number:               1687                                              
     Packing Group:           II                                                
     Shipping Name:           SODIUM AZIDE                                      
     Hazard Class:            6.1                                               
     UN Number:               1687                                              
     Packing Group:           II                                                
USA RQ: CAS# 26628-22-8: 1000 lb final RQ; 454 kg final RQ                      
                       Section 15 - Regulatory Information                      
European/International Regulations                                              
     European Labeling in Accordance with EC Directives                         
Hazard Symbols: T+ N                                                            
Risk Phrases:                                                                   
                       R 28  Very toxic if swallowed.                           
                       R 32  Contact with acids liberates very toxic gas.       
                       R 50/53  Very toxic to aquatic organisms, may cause      
                       long-term adverse effects in the aquatic environment.    
Safety Phrases:                                                                 
                       S 28A  After contact with skin, wash immediately with    
                       plenty of water.                                         
                       S 45  In case of accident or if you feel unwell, seek    
                       medical advice immediately (show the label where         
                       S 60  This material and its container must be            
                       disposed of as hazardous waste.                          
                       S 61  Avoid release to the environment. Refer to         
                       special instructions/safety data sheets.                 
WGK (Water Danger/Protection)                                                   
          CAS# 7732-18-5: Not available                                         
          CAS# 7782-79-8: Not available                                         
          CAS# 26628-22-8: 2                                                    
CAS# 7732-18-5 is listed on Canada's DSL List                                   
CAS# 7782-79-8 is listed on Canada's NDSL List                                  
CAS# 26628-22-8 is listed on Canada's DSL List                                  
US Federal                                                                      
CAS# 7732-18-5 is listed on the TSCA Inventory.                                 
CAS# 7782-79-8 is listed on the TSCA Inventory.                                 
CAS# 26628-22-8 is listed on the TSCA Inventory.                                
                         Section 16 - Other Information                         
     Text for R-phrases from Section 2                                          
     MSDS Creation Date:                                                        
     Revision #15 Date                                                          
     Revisions were made in Sections:                                           
     3, 4, 5, 6, 7, 8, 9, 10, 11, 1                                             
     The information above is believed to be accurate and represents the        
     best information currently available to us. However, we make no            
     warranty of merchantibility or any other warranty, express or              
     implied, with respect to such information, and we assume no liability      
     resulting from its use. Users should make their own investigations to      
     determine the suitability of the information for their particular          
     purposes. In no event shall the company be liable for any claims,          
     losses, or damages of any third party or for lost profits or any           
     special, indirect, incidental, consequential, or exemplary damages         
     howsoever arising, even if the company has been advised of the             
     possibility of such damages.