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TRIBUTYLTIN OXIDEICSC: 1282
June 2015
CAS #: 56-35-9Hexabutyldistannoxane
Tri-n-butyltin oxide
TBTO
UN #: 3020
EINECS #: 200-268-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.    NO open flames.    In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT GENERATION OF MISTS! STRICT HYGIENE!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Abdominal cramps. Cough. Diarrhoea. Laboured breathing. Nausea. Sore throat. Vomiting. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Refer for medical attention. 
Skin Redness. Delayed skin burns.  Protective gloves. Protective clothing.  Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety spectacles, 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 cramps. Diarrhoea. Nausea. Vomiting.  Do not eat, drink, or smoke during work. Wash hands before eating.  Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT wash away into sewer. 

According to UN GHS Criteria

skull;toxiccancer;health hazenviro;aqua
DANGER
Fatal if inhaled
Toxic if swallowed
Causes skin and eye irritation
May cause damage to thymus
Very toxic to aquatic life with long lasting effects 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 

STORAGE
Well closed. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access. 
PACKAGING
Severe marine pollutant. 
TRIBUTYLTIN OXIDE ICSC: 1282
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
LIQUID. 

Physical dangers
No data. 

Chemical dangers
Decomposes on burning. This produces toxic fumes. 

Formula: C24H54OSn2
Molecular mass: 596.07
Boiling point: 180°C
Melting point: <-45°C
Relative density (water = 1): 1.17 (20°C)
Solubility in water, mg/l at 20°C: 71.2 (poor)
Vapour pressure, Pa at 20°C: 0.001
Flash point: 190°C c.c.
Octanol/water partition coefficient as log Pow: 3.84  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and skin. Inhalation of the aerosol may cause lung oedema. See Notes. The substance may cause effects on the thymus. This may result in depression of the immune function. 

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

Effects of long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. Bioaccumulation of this chemical may occur along the food chain, for example in fish and molluscs. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
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.
Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T, N; R: 21-25-36/38-48/23/25-50/53; S: (1/2)-35-36/37/39-45-60-61; Note: A 

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    See Also:
       Toxicological Abbreviations
       Tributyltin oxide (CICADS 14, 1999)