Organometallic Compounds
REACH
Tributyltin oxide
CAS Number
56-35-9
EC Number
200-268-0
Abbreviation
TBTO
What is Tributyltin oxide?
Tributyltin oxide (CAS 56-35-9), commercially known as TBTO or Butinox, is an organotin biocide used in industrial preservation.
Where is Tributyltin oxide used?
- Textile and leather processing: antifungal treatment that prevents mold and mildew degradation during storage and transit
- Pulp and paper manufacturing: slimicide inhibiting microbial growth in process water and on finished materials
- Building and construction: wood preservative protecting structural timber and joinery against fungal decay and insect attack
- Marine and industrial coatings: antifouling agent preventing biofouling on submerged surfaces and industrial equipment
- It functions as a broad-spectrum antimicrobial agent.
Good to know: Highly effective at controlling fungi, bacteria, and marine fouling organisms in demanding environments.
Commercial specifications
- Packaging ranges from drums to intermediate bulk containers
Other Names (Synonyms)
bis(tributyltin) oxide|TBTO|Butinox|Distannoxane, hexabutyl-|Bis(tri-n-butyltin) oxide|Stannicide A|Lastanox Q|Distannoxane, 1,1,1,3,3,3-hexabutyl-
What are the physical properties of Tributyltin oxide?
Melting Point -45 °C
Boiling Point 180 °C @ Press: 2 Torr
Density 1.17 g/cm³ @ Temp: 25 °C
Flash Point >230 °F
Appearance Clear colorless liquid
Color colorless
Form liquid
Water Solubility INSOLUBLE
Vapor Pressure <0.01 mm Hg ( 25 °C)
Refractive Index n 20/D 1.486(lit.)
Log P 3.840 (est)
How is Tributyltin oxide classified and handled safely? Learn More
Danger
GHS06· Toxic GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H301 Toxic if swallowed
H311 Toxic in contact with skin
H312 Harmful in contact with skin
H315 Causes skin irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
Which trade and regulatory codes apply to Tributyltin oxide?
HS Code 29310095
UN Number 2788
ADR Class 6.1
Packing Group II
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
WGK (Germany) 3