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Organotin USi-4101 Esterification Catalyst

Category：

Silanes

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Product Details

产品描述

USi-4101 — Butylchlorotin Dihydroxide

Non-Acidic Solid Catalyst for High-Temperature Esterification

📄 Product Description

Chemical Name: Butylchlorotin Dihydroxide
CAS No.: 13355-96-9
Form: White free-flowing powder
Key Feature: Non-acidic, thermally stable organotin catalyst

(Note: Exists as a polymeric solid; structural representation available upon request.)

📊 Typical Technical Data

⚠️ The following values are typical and provided for reference only. Not to be used for specification or quality acceptance without prior written confirmation from our technical team.

Parameter	Specification
Appearance	White powder
Tin Content (%)	46.0 – 51.0
Loss on Drying (%)	≤ 2.0
Chloride (%)	13.8 – 15.2

🌐 Applications

USi-4101 is a high-performance catalyst engineered for demanding esterification processes:

Effective at 200–230 °C – one of the most active organotin catalysts in high-temperature polyester synthesis.
In-situ solubilization – reacts with alcohols or carboxylic acids upon heating to form a catalytically active species that remains fully soluble in the final ester product.
Ideal for premium esters, including:
- Trioctyl Trimellitate (TOTM) – a high-stability plasticizer for wire & cable, medical tubing, and heat-resistant applications
- Saturated & Unsaturated Polyesters – used in coatings, composites, and industrial resins

✅ Non-acidic nature ensures minimal corrosion and excellent product clarity
✅ Leaves no volatile residues – ideal for high-purity formulations

📦 Packaging

25 kg per metal drum or moisture-resistant fiber (paper) drum
Sealed under dry conditions to maintain stability and prevent hydrolysis

📞 Contact Us

Nanjing Union Silicon Chemical Co., Ltd.

Headquarters:
Room 2002, Overseas Chinese Plaza, No.1 Daqiao North Road, Nanjing 210031, Jiangsu, P.R. China
Factory Address:
Dongcheng Guanli District, Gaizhou 115200, Liaoning, P.R. China
Tel: +86-25-5889 5266 / 5889 5699
Fax: +86-25-5830 5349
Website: www.usi-chemical.com
Email: sales07@usichemical.com

Keywords:

Organotin USi-4102 Esterification Catalyst

USI-4101 Esterification Catalyst

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