DI-n-BUTYLTIN OXIDE 0256
April 1994
CAS No: 818-08-6 Dibutyltin oxide
Dibutyloxostannane
RTECS No: WH7175000
Dibutyloxotin
UN No: 3146
C8H18OSn / (C4H9)2SnO
EC No: 050-008-00-3
Molecular mass: 248.9
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Combustible. Gives off irritating or NO open flames. Water spray. Powder. Carbon
toxic fumes (or gases) in a fire. dioxide.
EXPLOSION Finely dispersed particles form Prevent deposition of dust; closed
explosive mixtures in air. system, dust explosion-proof
electrical equipment and lighting.
Prevent build-up of electrostatic
charges (e.g., by grounding).
EXPOSURE PREVENT DISPERSION OF DUST! IN ALL CASES CONSULT A
STRICT HYGIENE! AVOID DOCTOR!
EXPOSURE OF (PREGNANT)
WOMEN!
Inhalation Headache. Ringing in the ears, Local exhaust or breathing protection. Fresh air, rest. Refer for medical
memory loss, disorientation. attention.
Skin MAY BE ABSORBED! Skin burns. Protective gloves. Remove contaminated clothes.
Pain. (Further see Inhalation). Rinse and then wash skin with water
and soap. Refer for medical
attention.
Eyes Redness. Pain. Face shield or eye protection in First rinse with plenty of water for
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take to
a doctor.
Ingestion (Further see Inhalation). Do not eat, drink, or smoke during Rinse mouth. Give a slurry of
work. Wash hands before eating. activated charcoal in water to drink.
Induce vomiting (ONLY IN
CONSCIOUS PERSONS!). Refer for
medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Do NOT wash away into sewer. Sweep spilled T Symbol Unbreakable packaging; put
substance into containers; if appropriate, moisten first N Symbol breakable packaging into closed
to prevent dusting. Carefully collect remainder, then R: 21-25-36/38-48/23/25-50/53 unbreakable container. Do not
remove to safe place. Personal protection: P3 filter S: (1/2-)35-36/37/39-45-60-61 transport with food and feedstuffs.
respirator for toxic particles. Note: A, 1
UN Hazard Class: 6.1
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GT3-II-S Separated from food and feedstuffs.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2005
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0256 DI-n-BUTYLTIN OXIDE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
WHITE POWDER. The substance can be absorbed into the body by inhalation,
through the skin and by ingestion.
Physical dangers
Inhalation risk
Dust explosion possible if in powder or granular form, mixed with
air. If dry, it can be charged electrostatically by swirling, pneumatic Evaporation at 20/C is negligible; a harmful concentration of
transport, pouring, etc. airborne particles can, however, be reached quickly when
dispersed.
Chemical dangers
Effects of short-term exposure
The substance decomposes on heating producing toxic fumes of
tin, tin oxides. The substance is irritating to the eyes, the skin and the respiratory
tract. The substance may cause effects on the central nervous
Occupational exposure limits system, resulting in impaired functions. Exposure may result in
death. The effects may be delayed. Medical observation is
TLV: (as Sn) 0.1 ppm as TWA, 0.2 ppm as STEL; (skin); A4 (not
indicated.
classifiable as a human carcinogen); (ACGIH 2004).
MAK: (as Sn) (Inhalable fraction) 0.1 mg/m 3; Peak limitation
Effects of long-term or repeated exposure
category: II(2); skin absorption (H); Pregnancy risk group: D; (DFG
2004). The substance may have effects on the liver, resulting in liver
impairment. Animal tests show that this substance possibly
causes malformations in human babies.
PHYSICAL PROPERTIES
Decomposes below melting point at 210/C (see Notes) Solubility in water: none
Relative density (water = 1): 1.6 Auto-ignition temperature: 279/C
ENVIRONMENTAL DATA
This substance may be hazardous to the environment; special attention should be given to algae and crustacea.
NOTES
Different values are found in literature.
Depending on the degree of exposure, periodic medical examination is suggested.
The symptoms of poisoning do not become manifest until days.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2005
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