4645-32-3 (乙烯基磷酸二甲酯,dimethyl vinylphosphonate)

---

Section 1: Product Identification
   Chemical Name:       Vinylphosphonic acid dimethyl ester, min. 90%    
   CAS Registry Number:       4645-32-3    
   Formula:       CH2=CHP(O)(OCH3)2    
   EINECS Number:       225-076-4    
   Chemical Family:       organic phosphonic acid    
   Synonym:       Dimethylvinylphosphonate;1-dimethoxyphosphorylethylene; Ethenylphosphonic acid dimethyl    

---

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title compound       4645-32-3       100%       no data       no data    

---

Section 3: Hazards Identification
   Emergency Overview:       Harmful by inhalation and if swallowed. Corrosive to skin, eyes and respiratory tract. Causes burns.    
   Primary Routes of Exposure:       Ingestion, inhalation, skin, eyes    
   Eye Contact:       Severe corrosive to eyes. Exposure can lead to permanent eye damage.    
   Skin Contact:       Harmful in contact with skin. Causes burns. Contact can lead to redness, pain, blistering and scar formation.    
   Harmful by inhalation. Material is extremely destructive to the tissue of the mucous membranes and
   Inhalation:
   respiratory tract.
   Ingestion:       Harmful if swallowed. Causes burns to the mouth, throat and stomach.    
   Acute Health Affects:       Harmful by inhalation and if swallowed. Corrosive to skin, eyes and respiratory tract. Causes burns.    
   Repeated or prolonged exposure to spray mist may produce respiratory tract irritation leading to frequent
   Chronic Health Affects:
   attacks of bronchial infection.
   NTP:       No    
   IARC:       No    
   OSHA:       No    

---

SECTION 4: First Aid Measures
   Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
   Eye Exposure:
   assistance in keeping their eye lids open. Get immediate medical attention.
   Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
   Skin Exposure:
   irritation persists.
   Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
   Inhalation:
   in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
   Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
   Ingestion:
   vomiting only if directed by medical personnel.

---

SECTION 5: Fire Fighting Measures
   Flash Point:       208.4°F    
   Autoignition Temperature:       no data    
   Explosion Limits:       no data    
   Extinguishing Medium:       carbon dioxide, dry powder or foam    
   If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
   Special Fire Fighting Procedures:
   self-contained breathing apparatus and full protective clothing.
   Hazardous Combustion and       If involved in a fire, this material may emit toxic and corrosive fumes.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

---

SECTION 6: Accidental Release Measures
   Ensure adequate ventilation and wear respiratory protection. Small spills can be mixed with vermiculite,
   Spill and Leak Procedures:       sodium carbonate or other suitable non-combustible adsorbent and swept up. Place in adequate container for    
   disposal. Do not let material enter drains.

---

SECTION 7: Handling and Storage
   Handling and Storage:       Store cold, in a tightly sealed container. Keep away from heat and direct sunlight.    

---

SECTION 8: Exposure Controls and Personal Protection
   Eye Protection:       Always wear approved safety glasses when handling a chemical substance in the laboratory.    
   Skin Protection:       Wear protective clothing and gloves.    
   Ventilation:       Handle the material in an efficient fume hood.    
   If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
   Respirator:
   Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       Handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

---

SECTION 9: Physical and Chemical Properties
   Color and Form:       colorless liq.    
   Molecular Weight:       136.1    
   Melting Point:       no data    
   Boiling Point:       197-202°C    
   Vapor Pressure:       no data    
   Specific Gravity:       1.146g/cm3 (20°C)    
   Odor:       none    
   Solubility in Water:       soluble    

---

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable (store cold)    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       none    
   Incompatibility:       strong bases, oxidizing agents and fine powder metals    
   Decomposition Products:       carbon monoxide, carbon dioxide and phosphorus oxides.    

---

SECTION 11: Toxicological Information
   RTECS Data:       No information available in the RTECS files.    
   Carcinogenic Effects:       no data    
   Mutagenic Effects:       no data    
   Tetratogenic Effects:       no data    

---

SECTION 12: Ecological Information
   Ecological Information:       No information available    

---

SECTION 13: Disposal Considerations
   Disposal:       Dispose of according to local, state and federal regulations.    

---

SECTION 14: Transportation
   Shipping Name (CFR):       Corrosive liquid, Acidic, Organic, N.O.S.    
   Hazard Class (CFR):       8    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       III    
   UN ID Number (CFR):       UN# 3265    
   Shipping Name (IATA):       Corrosive liquid, Acidic, Organic, N.O.S.    
   Hazard Class (IATA):       8    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       III    
   UN ID Number (IATA):       UN# 3265    

---

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory    
   SARA (Title 313):       Not reportable under SARA313.    
   Second Ingredient:       none    

---

SECTION 16 - ADDITIONAL INFORMATION
N/A