Description

Monobutyltin Oxide is a versatile organotin compound with significant industrial utility. Its primary value lies in its role as a key intermediate and catalyst in the synthesis of heat stabilizers for PVC and other polymers. This product is essential for manufacturers in the plastics, coatings, and chemical synthesis sectors seeking to enhance material performance and process efficiency. We supply high-purity grades to meet the stringent demands of global industrial applications.

Application

• PVC Heat Stabilizer Intermediate: A crucial precursor in the manufacture of methyltin and butyltin-based heat stabilizers for rigid and flexible PVC products.
• Polymerization Catalyst: Used as a catalyst or co-catalyst in esterification and transesterification reactions, particularly for producing polyesters and polyurethanes.
• Glass Coating Precursor: Serves as a starting material for depositing transparent, conductive tin oxide coatings on glass surfaces.
• Homogeneous Catalyst: Facilitates various organic synthesis reactions, including silicone curing and cross-linking processes.
• Wood Preservative Component: Employed in formulations to protect wood against fungal decay and insect damage.
• Antifouling Agent Synthesis: An intermediate in the production of biocidal agents used in marine antifouling paints.

Basic Information

Product Name	Monobutyltin Oxide
CAS No.	51590-67-1
Molecular Formula	C4H10OSn
Molecular Weight	208.83 g/mol
Synonyms	Butylstannoic Acid; Butyltin Hydroxide Oxide; Hydroxy(oxo)butylstannane; Monobutylstannonic Acid; Butyltin Oxide Hydroxide; MBTO; (Hydroxy)(oxo)butyltin; Butyltin Oxide
EINECS	257-273-5

Quality Control

Our Monobutyltin Oxide is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, tin content, and impurity profiles. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to guarantee compliance with your technical requirements and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. This material is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to prevent degradation. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (Sn Content)	≥ 56.0 %
Purity (HPLC)	≥ 98.0 %
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 100 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.