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CAS Number: 593-88-4
Product Catalog

33-3750
Arsenic › Trimethylarsine, 99%
CAS Number: 593-88-4
MDL Number: MFCD00014838
Molecular Formula: C3H9As
Molecular Weight: 120.03
Chemical Formula: (CH3)3As
Color and Form: colorless liq.
Note:  

Stability: air sensitive

Safety: Hazardous

Physical Characteristics: melting point -87.3°C, boiling point 51°C, flash point 100°F, density 1.124

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SECTION 1: Product Identification
Chemical Name: Trimethylarsine, 99%
Product Number: 33-3750
CAS Registry Number: 593-88-4
Formula: (CH3)3As
EINECS Number: 209-815-8
Chemical Family: organoarsenic compound
Synonym: Trimethylarsenic
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 593-88-4 100 no data 0.5 mg/m3 (as As)
SECTION 3: Hazards Identification
Emergency Overview: Toxic by inhalation, in contact with skin and if swallowed. Exposure to large amounts may induce nausea, dizziness and coma. Chronic effects include dermatitis, liver and kidney damage.
Primary Routes of Exposure: Ingestion, inhalation, skin
Eye Contact: May cause moderate irritation of the eyes.
Skin Contact: Toxic by skin contact. May be irritating to skin.
Inhalation: Dust may be severely irritating to the nose and respiratory tract. In large amounts may cause arsenic poisoning
Ingestion: Ingestion may lead to nausea, vomiting, bloody diarrhea, weakness, low blood pressure, shock, coma and death.
Acute Health Effects: May be irritating to skin, eyes and respiratory tract, and cause garlic odor, nausea, vomiting, bloody diarrhea, weakness, shock and coma.
Chronic Health Effects: Prolonged exposure to arsenic compounds may cause loss of appetite, dermatitis, diarrhea, kidney and liver damage, nervous disorders, and cancer of the skin, lungs and liver.
NTP: No
IARC: Yes
OSHA: No
SECTION 4: First Aid Measures
Eye Exposure: Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure: Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation: Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing or pain. In such cases seek immediate medical assistance.
Ingestion: Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: 100°F
Autoignition Temperature: no data
Explosion Limits: no data
Extinguishing Medium: carbon dioxide or dry powder
Special Fire Fighting Procedures: If this product is involved in a fire, firefighters should be equipped with NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and Decomposion Products: If involved in a fire this material may emit toxic and corrosive fumes.
Unusual Fire or Explosion Hazards: Highly flammable.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Leave the area unless fitted with a self-contained breathing apparatus. Spills can be absorbed into vermiculite or other suitable chemical adsorbent. Sweep up the material and dispose of properly.
SECTION 7: Handling and Storage
Handling and Storage: The material will react with air. Handle and store the material under an inert atmosphere of nitrogen or argon. Keep away from heat.
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. Consult with glove manufacturer to determine the proper type of glove.
Ventilation: Handle the material in an efficient fume hood.
Respirator: If ventilation is not available a respirator should be worn. The use of respirators requires a Respiratory Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: colorless liquid
Molecular Weight: 120.03
Melting Point: -87.3°C
Boiling Point: 51°C
Vapor Pressure: 320mm (25°C)
Specific Gravity: 1.124
Odor: noxious
Solubility in Water: slightly soluble
SECTION 10: Stability and Reactivity
Stability: air sensitive
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: contact with heat or ignition source
Incompatibility: oxidizing agents and halogens
Decomposition Products: carbon monoxide, carbon dioxide, arsenic oxide and organic fumes
SECTION 11: Toxicological Information
RTECS Data: Oral (mouse); LD50: 7870mg/kg. Inhalation (mouse); LC50: 20500ppm/4H.
Carcinogenic Effects: Carcinogen
Mutagenic Effects: Mutagen
Tetratogenic Effects: no data
SECTION 12: Ecological Information
Ecological Information: Avoid release to the environment. Very toxic to aquatic organisms. May cause long-term adverse effects in the aquatic environment.
SECTION 13: Disposal Considerations
Disposal: This material and its container must be disposed of as hazardous waste according to local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Flammable liquids, Toxic, N.O.S.
Hazard Class (CFR): 3
Additional Hazard Class (CFR): 6.1
Packaging Group (CFR): III
UN ID Number (CFR): UN# 1992
Shipping Name (IATA): Flammable liquid, Toxic, N.O.S.
Hazard Class (IATA): 3
Additional Hazard Class (IATA): 6.1
Packaging Group (IATA): III
UN ID Number (IATA): UN# 1992
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound: See category code N020 for reporting.
Second Ingredient: none
Third Ingredient: none
SECTION 16: Other Information
Disclaimer: The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date: 6/17/2003
Revision Date: 12/16/2011

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