MATERIAL SAFETY DATA SHEET
OBSH
CAS #
80-51-3
DATE:2012/3/30
1. IDENTIFICATION Trade Name : OBSH,
Manufacture :

2. COMPOSITION
Substance : Diphenyloxide-4,4'-disulphonyl hydrazide     
  - CAS No. : 80 - 51 - 3 - EINECS No. : 201-286-1 –
Formula : NH2NHSO2C6H4OC6H4SO2NHNH2
Hazardous components : F-Highly flammable

3. HAZARDS IDENTIFICATION
A highly flammable solid.

4. FIRST-AID MEASURES
reactive substanceIngestion : If conscious give water to drink and transport to hospital. Eye contact : Flush eyes with water for at least 15 minutes. If irritation persists, seek medical advice. Skin contact : Remove contaminated clothing and wash affected areas with soap and water Inhalation : Remove to fresh air. If irritation persists, seek medical attention.

5. FIRE-FIGHTING MEASURES
Extinguishing media - Suitable : Preferably water or foam. Carbon dioxide or sand may be used. - Not to be used : Special exposure hazards, combustion products : If ignited produces intense heat. Large volumes of gases and toxic smoke produced in fire Special productive equipment for firefighters : Wear self-contained breathing apparatus, gloves and goggles.


6. ACCIDENTAL RELEASE MEASURES
Personal precaution : Wear dust mask, gloves and goggles. Environmental precaution : Avoid creating dust. Method for cleaning up : Sweep up for disposal.

7. HANDLING AND STORAGE
Handling conditions : Avoid breathing or creating dust. Ensure adequate ventilation. Storage conditions : Storage in a cool, dry place away from hot steam-pipes, free flames, direct sunlight and strong alkaline solution.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Respiratory protection : provide adequate ventilation. Wear suitable dust mask (BS 2091 type B) Hand protection : Gloves Eye protection : Goggles Skin protection : Overalls

9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance : White fine powder PH : 6.0 ∼ 8.0 Boiling point : N/A Melting point : Not applicable Flash point : Value not determined Flammability : Not combustible Auto-flammability : N/A Vapor pressure : N/A Specific gravity : 1.55 @ 25℃ Solubility : Very soluble in Dimethylsulfoxide, Dimethylformamide. Moderately soluble in alcohol and Polyalkylene glycols. Insoluble in Benzene, Ethylene dichloride and water. React with Acetone and MEK. Viscosity : N/A Other data : Decomposition Temperature range is 158℃ ∼ 164℃.



10. STABILITY AND REACTIVITY
Conditions to avoid : Good stability when kept away from heat. Materials to avoid : Strong acid and alkaline solution. Hazardous decomposition products : Thermal decomposition residue of low toxicity. Thermal decomposition gases contain nitrogen with 91% and steam 9%. In case of spontaneous decomposition or in fire situations volatile, explosive and noxious decomposition products will be generated. Other : If heated above 70℃, exothermic decomposition may occur.


11. TOXICOLOGICAL INFORMATION
Ingestion : Not known LD50 oral rat : 〉 2,000 ㎎/㎏. Skin contact : May cause slight irritation. LD50 oral rat : 〉 600 ㎎/㎏. Eye contact : Not known to cause irritation with man. Inhalation : May cause irritation of respiratory system and entails a risk of asthmatic sensiti
zation. The allergic response usually manifests itself as an asthmatic attack, characterized by wheezing, shortness of breath and tightness of the chest. Mutagenicity : Not known



12. ECOLOGICAL INFORMATION
Molbility : No information Persistence and Degradability : No information Aquatic toxicity and other data relating to eco-toxicity : No information


13. DISPOSAL CONSIDERATIONS –
Disposal of product : Approved landfill - Disposal of packaging : Approved landfill - National or regional legislation : None special



14. TRANSPORT INFORMATION UN NO. :
3226 RID / ADR Class : 4.1 Fig. Let. : Label : Flammable solid Material : IMCO / IMDG SELF REACTIVE SOLID TYPE D (Diphenyl oxide-4,4'-disulphonylhydrazide) Class : 4.1 Code-page : 4142 Label : Flammable solid UN number : 3226 Group : Ⅱ OACI / IATA Class : 4.1 UN number : 3226 Label : Flammable solid Passenger aircraft : Pack grp. : Ⅱ Cargo aircraft


15. REGULATORY INFORMATION
Labeling according to EEC Regulations Hazard symbol : Flammable Solid Risk phrase : Highly flammable Safety advice : Keep away from sources of ignition – No smoking.Highly flammable. Keep container tightly closed and dry. Other Exposure limit None quoted TLV / TWA :



16. OTHER INFORMATION –
Recommended uses : Blowing agent for plastics & rubbers - Sources of data used to compile data sheets : - Manufactures data sheets - National and international regulations

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