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CHROMYL CHLORIDEICSC: 0854
Chromic oxychloride
Dichlorodioxochromium
Chromium dichloride dioxide
August 2003
CAS #: 14977-61-8
UN #: 1758
EC Number: 239-056-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion.    NO contact with flammables.    Use carbon dioxide, special powder. NO hydrous agents. In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. 

 AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Laboured breathing. Shortness of breath. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Skin burns. Pain. Blisters.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain. Severe deep burns.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Burning sensation. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. Do NOT absorb in saw-dust or other combustible absorbents. NEVER direct water jet on liquid. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 8; UN Pack Group: I 

STORAGE
Fireproof. Separated from combustible substances, reducing agents and food and feedstuffs. Dry. Keep in the dark. Keep in a well-ventilated room. 
PACKAGING
Airtight.
Do not transport with food and feedstuffs. 
CHROMYL CHLORIDE ICSC: 0854
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
DARK RED FUMING LIQUID WITH PUNGENT ODOUR. 

Physical dangers
No data. 

Chemical dangers
Decomposes violently on contact with water. This produces toxic and corrosive fumes of hydrogen chloride, chlorine, chromium trioxide and chromium trichloride. The substance is a strong oxidant. It reacts violently with combustible and reducing materials. Reacts violently with water, non-metal halides, non-metal hydrides, ammonia and certain common solvents such as alcohol, ether, acetone and turpentine. This generates fire and explosion hazard. Attacks many metals in the presence of water. Incompatible with plastics. Can ignite combustible substances. 

Formula: CrO2Cl2
Molecular mass: 154.9
Boiling point: 117°C
Melting point: -96.5°C
Relative density (water = 1): 1.91
Solubility in water: reaction
Vapour pressure, kPa at 20°C: 2.67
Relative vapour density (air = 1): 5.3  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol or vapour and by ingestion. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the vapour may cause lung oedema. See Notes. 

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. This substance is probably carcinogenic to humans. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.025 ppm as TWA 

ENVIRONMENT
It is strongly advised not to let the chemical enter into the environment. 

NOTES
Dissolves chromium trioxide, yielding a powerful oxidant.
Reacts violently with fire extinguishing agents such as water.
Depending on the degree of exposure, periodic medical examination is indicated.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
Do NOT take working clothes home.
Rinse contaminated clothes (fire hazard) with plenty of water. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: O, T, C, N; R: 49-46-8-35-43-50/53; S: 53-45-60-61; Note: E 

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    See Also:
       Toxicological Abbreviations