Description

Dipropionic Acid Dioctyltin(Iv) Salt is a specialized organotin compound widely utilized as a highly effective heat stabilizer and catalyst in polymer chemistry. Its primary value lies in its ability to significantly enhance the thermal processing stability and long-term performance of various halogen-containing polymers. This product is essential for manufacturers in the plastics, PVC, and specialty chemical industries seeking to improve product durability and processing efficiency.

Application

• Primary heat stabilizer for rigid and flexible Polyvinyl Chloride (PVC) formulations.
• Catalyst for polyurethane (PU) foam production and esterification reactions.
• Stabilizing additive in wire and cable insulation compounds to prevent thermal degradation.
• Key component in calendering and extrusion processes for PVC sheets, films, and profiles.
• Used in the formulation of lubricants and greases as a performance additive.
• Stabilizer for other halogenated polymers beyond PVC, contributing to color retention and structural integrity.

Basic Information

Product Name	Dipropionic Acid Dioctyltin(Iv) Salt
CAS No.	21619-67-0
Molecular Formula	C22H44O4Sn
Molecular Weight	491.29 g/mol
Synonyms	Dioctyltin Dipropionate; Dioctyltin Bis(propionate); Dioctyltin Di(propionate); Octyltin Dipropionate; DOTP; Di-n-octyltin Dipropionate; Thermoplastic PVC Stabilizer; EINECS 244-487-5
EINECS	244-487-5

Quality Control

Our Dipropionic Acid Dioctyltin(Iv) Salt is manufactured under strict quality management systems to ensure batch-to-batch consistency and high performance. The product undergoes rigorous analytical testing, including assay, tin content determination, and impurity profiling, to meet precise industry specifications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance indicators is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms
Assay (Tin content)	≥ 23.5 %
Purity (HPLC)	≥ 98.0 %
Specific Gravity (25°C)	1.10 - 1.20
Refractive Index (20°C)	1.480 - 1.500
Water Content (KF)	≤ 0.5 %

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