ICSC 1282 - TRIBUTYLTIN OXIDE

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TRIBUTYLTIN OXIDE	ICSC: 1282 (June 2015)
Hexabutyldistannoxane Tri-n-butyltin oxide TBTO

CAS #: 56-35-9

UN #: 3020

EC Number: 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	PREVENTION	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 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

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

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
TLV: (as Sn): 0.1 mg/m³, as TWA; 0.2 mg/m³ as STEL; (skin); A4 (not classifiable as a human carcinogen). MAK: (as Sn): 0.02 mg/m³, 0.004 ppm; peak limitation category: I(1); pregnancy risk group: B

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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