Dibutyltin dilaurate

  • Dibutylbis(lauroyloxy)tin
  • Dibutylbis((1-oxododecyl)-oxy) stannane
Formula
(C4H9)2Sn[OOC(CH2)1
Structure
Description
Clear yellow viscous liquid.
Uses
Stabilizer for polyvinyl chloride resins.

Registry Numbers and Inventories.
CAS
77-58-7
EC (EINECS/ELINCS)
201-039-8
EC Class
irritant, harmful, dangerous for the environment
R 25 48/23/25 36/38 52/53
S 26 36/37/39 45 60 61
RTECS
WH7000000
RTECS class
Organometallic; Reproductive Effector; Primary Irritant
UN (DOT)
2788
Merck
13,3063
Beilstein/Gmelin
4156980
Swiss Giftliste 1
G-5241
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C32H64O4Sn
Formula mass
631.55
Melting point, °C
16 - 18
Boiling point, °C
205 (12 torr)
Vapor pressure, mmHg
2E-5
Vapor density (air=1)
21.8
Density
1.066 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
42 cp at 25C
Refractive index
1.4683 (20 C)

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Safety goggles or face shields should be worn (8 inch minimum). Impervious clothing should include gloves, aprons, and suits. Wear appropriate chemical protective gloves, boots and goggles.
Respirators
Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.
Small spills/leaks
If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Disposal code
9
Stability
It lacks any great stability at high temperatures.
Incompatibilities
Incompatible with acids and bases Incompatible with oxidizing agents.

Fire.
Flash Point,°C
183
Fire fighting
Fires involving this compound should be controlled using a dry chemical, carbon dioxide or Halon extinguisher.
Fire potential
This chemical is combustible.
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)
NIOSH REL*: TWA 2 mg/m3 OSHA PEL*: TWA 2 mg/m3 [*Note: REL and PEL also apply to other inorganic tin compounds (as Sn) except tin oxides.] IDLH 100 mg/m3 (as Sn)
Poison_Class
3
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
Abdominal pain, nausea, vomiting, diarrhea, loss of appetite and sore throat have been reported.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Some tin compounds may cause sensitization, irritation or burns, and may be percutaneously absorbed.
   Eyes
Stannic chloride, when mixed with water, fumes, releasing an agent which is corrosive and irritating to eyes, nose and skin. Trialkyl tins may produce ocular irritation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
2788
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
HS Code
2931 00 95