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chromium trioxide 1333-82-0 MSDS

Section 1: Product Identification
   Chemical Name:       Chromium (VI) oxide, 99.5%    
   CAS Registry Number:       1333-82-0    
   Formula:       CrO3    
   EINECS Number:       215-607-8    
   Chemical Family:       metal oxide    
   Synonym:       Chromic anhydride, Chromium trioxide, chromia    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       1333-82-0       100%       0.05mg/m3       0.1mg/10m3    

Section 3: Hazards Identification
   Toxic by inhalation, in contact with skin and if swallowed. Corrosive to skin, eyes, mucous membrane of nose
   Emergency Overview:
   and mouth. May cause cancer by inhalation and heritable genetic damage..
   Primary Routes of Exposure:       Ingestion, inhalation, skin    
   Eye Contact:       Causes severe burning of the eyes    
   Skin Contact:       Causes severe burns of the skin. Toxic through skin contact.    
   Inhalation:       Toxic through inhalation. Causes inflammation and ulceration of the respiratory tract.    
   Toxic through ingestion. Ingestion may lead to dizziness, abdominal cramps, vomiting, bloody diarrhea,
   Ingestion:
   weakness, shock, and convulsions.
   Toxic by inhalation, in contact with skin and if swallowed. Corrosive to skin, eyes, and respiratory system and
   Acute Health Affects:
   when ingested
   Cancer hazard. May cause cancer through inhalation. May cause heritable genetic damage. May cause
   Chronic Health Affects:
   dermatitis, ulceration of the respiratory tract, acute hepatitis, kidney damage, and conjunctivitis.
   NTP:       yes    
   IARC:       Yes    
   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:       not applicable    
   Autoignition Temperature:       none    
   Explosion Limits:       none    
   Extinguishing Medium:       material is non-flammable    
   The dust is highly toxic and may support combustion of combustible dusts. Use water (minimum amt) to avoid
   Special Fire Fighting Procedures:
   hazards, but not to introduce toxic soluble hexavalent chromium to groundwater.
   Hazardous Combustion and       none    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: The product can act as an oxidizer towards combustibles.

SECTION 6: Accidental Release Measures
   Spill and Leak Procedures:       Small spills can be mixed with vermiculite or sodium carbonate and swept up. Do not mix with combustibles.    

SECTION 7: Handling and Storage
   Handling and Storage:       Store in a tightly sealed container in a cool dry place.    

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:       Material may form a fine dust. If possible, 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:       Material may form a fine dust. If possible, handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       red xtl.    
   Molecular Weight:       99.99    
   Melting Point:       196°    
   Boiling Point:       no data    
   Vapor Pressure:       no data    
   Specific Gravity:       2.7    
   Odor:       none    
   Solubility in Water:       very soluble    

SECTION 10: Stability and Reactivity
   Stability:       moisture sensitive solid    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       Do not mix or heat with combustible materials.    
   Incompatibility:       reducing agents, organic matter, phosphorus, sulfur, active metals and halogens    
   Decomposition Products:       none    

SECTION 11: Toxicological Information
   Inhalation (human); TCLo:110 ug/m3. Oral (rat); LD50:80 mg/kg. Administration onto the skin (rat); LDLo:55
   mg/kg. Intraperitoneal (rat); LD50:58400 ug/kg. Intravenous (rat); LD50:9260 ug/kg. Oral (mouse); LD50:127
   mg/kg. Intraperitoneal (mouse); LD50:14 mg/kg. Subcutaneous (mouse); LDLo:20 mg/kg. Intravenous
   RTECS Data:
   (mouse); LD50:17100 ug/kg. Inhalation (rat); TCLo:29 ug/m3/20H/90D-I. Inhalation (human); TCLo:110
   ug/m3/3Y-C. Inhalation (mouse); TCLo:3480 ug/m3/2H/1Y-I. Intravenous (hamster); TDLo:5 mg/kg. Human
   Fibroblast; Morphological transformation:100 nmol/L. Human Leukocyte; Cytogenetic analysis:2 mg/L.
   Carcinogenic Effects:       Tumorigen    
   Mutagenic Effects:       Mutagen    
   Tetratogenic Effects:       Human reproductive effector    

SECTION 12: Ecological Information
   Avoid release into the environment. Very toxic to aquatic organisms. May cause long-term adverse effects in
   Ecological Information:
   the aquatic environment.

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

SECTION 14: Transportation
   Shipping Name (CFR):       Chromium trioxide, anhydrous    
   Hazard Class (CFR):       5.1    
   Additional Hazard Class (CFR):       8    
   Packaging Group (CFR):       II    
   UN ID Number (CFR):       UN# 1463    
   Shipping Name (IATA):       Chromium trioxide, anhydrous    
   Hazard Class (IATA):       5.1    
   Additional Hazard Class (IATA):       8    
   Packaging Group (IATA):       II    
   UN ID Number (IATA):       UN# 1463    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory.    
   SARA (Title 313):       Title compound: See Category Code N090 for reporting.    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

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