Di-n-butyltin dichloride

  • Dibutyldichlorotin
  • Dibutyltin chloride
  • Dibutyltin dichloride
  • Dichlorodibutylstannane
  • Tin, dibutyl-dichloride
Formula
(CH3CH2CH2CH2)2SnCl2
Structure
Description
White needles.
Uses
Urethane & esterification catalyst.

Registry Numbers and Inventories.
CAS
683-18-1
EC (EINECS/ELINCS)
211-670-0
EC Class
toxic, corrosive, dangerous for the environment
R 25 34 51/53
S 26 36/37/39 45 61
RTECS
WH7100000
RTECS class
Organometallic; Mutagen; Reproductive Effector; Primary Irritant
UN (DOT)
3146
Beilstein/Gmelin
3535484
Beilstein Reference
4-04-00-04340
EPA OPP
83123
Swiss Giftliste 1
G-5237
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H18Cl2Sn
Formula mass
303.83
Melting point, °C
37 - 39
Boiling point, °C
275
Vapor pressure, mmHg
0.012 (25 C)
Density
1.36 g/cm3 (50 C)
Solubility in water
Insoluble
Partition coefficient, pKow
1.01
Heat of vaporization
49.3

Hazards and Protection.
Storage
Keep container closed when not in use. Corrosives area. Store protected from moisture.
Handling
Use only in a well ventilated area. Minimize dust generation and accumulation. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not allow contact with water. Discard contaminated shoes. Keep from contact with moist air and steam.
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
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.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation. Do not get water inside containers.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Moisture, strong acids, strong bases, strong oxidizing agents.
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide, tin/tin oxides.

Fire.
Flash Point,°C
107
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. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Extinguishing media: 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.
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
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
IDHL: 25 mg/m3 (as Sn)
Poison_Class
2
Exposure effects
Effects may be delayed.
   Ingestion
Harmful if swallowed. May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause systemic effects.
   Inhalation
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May cause systemic effects.
   Skin
Causes skin burns. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
   Eyes
Causes eye burns. May cause chemical conjunctivitis and corneal damage.

First aid
 
   Ingestion
Do NOT induce vomiting. 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 immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   Skin
Get medical aid immediately. 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
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

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