Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Hexabutyldistannoxane(56-35-9)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Hexabutyldistannoxane
Synonyms
Bis(tributyltin) oxide
Hexabutyldistannoxane
Tri-n-butyltin oxide
CAS
56-35-9
Formula
C24H54OSn2
Molecular Weight
596.08000000000004
EINECS
200-268-0
RTECS
JN8750000
RTECS Class
Agricultural Chemical and Pesticide; Tumorigen; Organometallic; Mutagen; Reproductive Effector; Primary Irritant
Beilstein/Gmelin
745057
EC Index Number
050-008-00-3
EC Class
toxic, irritant, dangerous for the environment

Physical and Chemical Properties

Appearance
Clear pale yellow liquid.
Solubility in water
Insoluble
Boiling Point
475
Vapor Pressure
1E-8 (25 C)
Density
1.170 g/cm3 (20 C)
Partition Coefficient
17.16
Heat Of Vaporization
71.0 kJ/mol
Usage
Fungicide and bactericide in underwater and antifouling paints, pesticide.
Vapor Density
20.6
Refractive Index
1.49 (20 C)

First Aid Measures

Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.

Hazards Identification

Inhalation
May cause respiratory tract irritation.
Skin
Causes skin irritation. Harmful if absorbed through the skin.
Eyes
Causes eye irritation.
Ingestion
Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Inorganic tin salts may cause systemic effects on the central nervous system, heart and liver.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
EC Risk Phrase
R 21 25 36/38 48/23/25 50/53
EC Safety Phrase
S 35 36/37/39 45 60 61
UN (DOT)
3020

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Exposure Effects
Repeated exposure may cause central nervous system damage.
Exposure limit(s)
TLV (as tin): ppm; 0.1 mg/m3 A4, STEL 0.2 mg/m3 A4 (skin) (ACGIH 1997).
Poison Class
3

Fire Fighting Measures

Flash Point
190
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use flooding quantities of water. Do NOT use straight streams of water. Cool containers with flooding quantities of water until well after fire is out.
Fire Potential
This chemical is probably combustible.

Accidental Release Measures

Small spills/leaks
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Provide ventilation.

Stability and Reactivity

Disposal Code
9
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, tin/tin oxides.
Combustion Products
Toxic gases and vapors may be released in a fire involving organic tin compounds.

Transport Information

UN Number
3020
Hazard Class
6.1
Packing Group
I; II; III
HS Code
2931 00 95
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