Tri-n-butyltin hydride

  • Tributylstannane
  • Tri-n-butylstannane hydride
  • Tributylstannic hydride
  • Tributyltin
  • Tributyltin hydride
Formula
(C4H9)3SnH
Structure
Description
Almost colorless liquid.
Uses
Tributyltin hydride may be used as a reducing agent for the conversion of alkyl halides to hydrocarbons.

Registry Numbers and Inventories.
CAS
688-73-3
EC (EINECS/ELINCS)
211-704-4
EC Index Number
050-008-00-3
EC Class
toxic, irritant, dangerous for the environment
R 21 25 36/38 48/23/25 50/53
S 35 36/37/39 45 60 61
RTECS
WH8675000
RTECS class
Organometallic
UN (DOT)
3146
Beilstein/Gmelin
3587329
Beilstein Reference
4-04-00-04312
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C12H28Sn
Formula mass
291.05
Boiling point, °C
80
Vapor pressure, mmHg
0.02
Density
1.04 g/cm3 (20 C)
Solubility in water
Decomposes
Viscosity
1.5 mPas 20 C
Refractive index
1.4735 (19 C)

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Disposal code
26
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, carbon dioxide, tin/tin oxides.

Fire.
Flash Point,°C
109
Autoignition, °C
> 250
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. Extinguishing media: Do NOT use water directly on fire. Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Toxic gases and vapors may be released in a fire involving organic tin compounds.

Health.
Exposure limit(s)
IDHL: 25 mg/m3 (as Sn)
Exposure effects
Triphenyl tin: encephalopathy, polyneuropathy trimethyl tin: tinnitus, lightheadedness, aggression, unresponsiveness; seizures in one human case and in experimental animals tributyl tin: weakness, loss of appetite, headache trialkyl tin: eeg abnormalities and altered consciousness diiododiethyl tin: headache and cerebral edema
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause CNS irritation.
   Inhalation
Effects may be delayed. May cause respiratory tract irritation. Vapors may cause dizziness or suffocation. Causes sore throat, coughing, shortness of breath, and dental corrosion.
   Skin
Effects may be delayed. May produce mucosal lesions. Causes skin irritation and possible burns.
   Eyes
May cause eye irritation. Produces irritation, characterized by a burning sensation, redness, tearing, inflammation, and possible corneal injury.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   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 immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
3146
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
HS Code
2931 00 95