Dimethyltin bis(isooctyl mercaptoacetate)

  • Dimethyltin-bis(Isooctylthioglycolate)
  • Dimethyltin s,S'-bis(Isooctyl mercaptoacetate)
  • Bis((((Isooctyloxy)carbonyl)methyl)thio)dimethyltin
  • Diisooctyl ((dimethylstannylene)dithio)diacetate
Formula
(CH3)2Sn(SCH2C(O)OCH2CH(C2H5)C4H9)2
Structure
Uses
Heat stabilizer for rigid polyvinyl chloride resins.

Registry Numbers and Inventories.
CAS
26636-01-1
EC (EINECS/ELINCS)
247-862-6
RTECS
WH6721000
RTECS class
Organometallic
UN (DOT)
3146
Beilstein/Gmelin
1204129 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C22H44O4S2Sn
Formula mass
555.47

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.
Respirators
Any self-contained breathing apparatus with a full facepiece and operated in a pressure-demand or other positive pressure mode; or any supplied-air respirator with a full facepiece and operated in a pressure-demand or other positive pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive pressure mode.
Small spills/leaks
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
Contact with strong oxidizers may cause fires and explosions. Organic tin compounds will attack some forms of plastics, rubber, and coatings.

Fire.
Fire fighting
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.
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)
OSHA: PEL (8 h TWA): 0.1 mg/m3.
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
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
3146
Response guide
Hazard class
6.1
Packing Group
I; II; III