Item Index
Appearance White granular powder


Packing& Storage

Packing In 15kg barrel
Storage 20℃, 2 years.
Shipping Room temperature in China; may vary elsewhere


General Information

1.1 Chemical & Physical Properties

Common Names Dibutyltin oxide | Dibutyloxide of tin | Stannane,dibutyloxo
CAS No. 818-08-6 Boiling Point (℃)  >300°C
Molecular Weight 248.938 Melting Point (℃)  ≥300 °C(lit.)
Appearance White granular powder Vapor Specific Gravity N/A
HS Code 29310095 Flash Point (℃) 81-83°C
Solubility Insoluble in water and general solvents Autoignition Temperature (℃) N/A


1.2 Safety Information

Safety Phrases S36/37/39-S45-S24/25
RIDADR UN 3146 6.1/PG 2
WGK Germany 3
Packaging Group  II
Hazard Class 6.1


Inhalation Cough. Sore throat. Use local exhaust or breathing protection. Fresh air, rest.
Skin Redness. Burning sensation. Itching. Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain. Wear safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion Abdominal pain. Nausea. Vomiting. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention .


1.3 Synthetic Route

Properties of Dibutyltin Oxide
Dibutyltin oxide is light yellow or white crystalline powder, which decomposes directly at 350°C. It is insoluble in water and most organic solvents, but it may be dissolved in organic acids and esters, soluble in dilute hydrochloric acid and acetic acid.

The use of dibutyltin oxide
Dibutyl tin oxide is used in automotive and industrial water-based polyurethane electrophoretic paints. It is a very effective catalyst for transesterification reactions and is used in the production of resins for coatings that require high-temperature transesterification reactions. It is one of the intermediates for synthesizing organotin. It is used in PVC heat stabilizers, SPC self-polishing marine antifouling coatings, wood preservation, agricultural fungicides, glass treatment and organic synthesis.