Overview
REAXIS® C160 (Stannous Oxalate or Tin II Oxalate) is a high metal content inorganic tin catalyst that is used in a wide range of esterification reactions. Tin(II) Oxalate is an ideal alternative tin chemical for commonly used organotin catalysts such as REAXIS® C248 (Dibutyltin Oxide) and monobutyltin oxide. Stannous Oxalate has a lower toxicity profile compared to organotins in similar applications. REAXIS® C160 is a tin catalyst supplied as a free-flowing white solid with a narrow particle size distribution range and low moisture content. Similar inorganic tin products to REAXIS® C160 include REAXIS® C162 (Stannous Chloride Anhydrous), REAXIS® C129 (Stannous Octoate), and REAXIS® C125 (Stannous Neodecanoate).
Technical Information
- Product Category Inorganic Tin
- Chemical Name Stannous Oxalate
- CAS Number 814-94-8
Typical Specifications
| Parameter | Range |
|---|---|
| Stannous Tin (%) | 55.5 - 57.5 |
| Tin (IV) Content (%) | 0.5 Max |
| Loss On Drying (%) | 2.0 Max |
International Regulatory Listings
- TSCA (US) Yes
- DSL (Canada) Yes
- REACH (EU) Yes
- AICS (Australia) Yes
- KECI (South Korea) Yes
- IECSC (China) Yes
- ENCS (Japan) Yes
- TCSI (Taiwan) Yes
- NZloC (New Zealand) Yes
Applications
REAXIS® C160 is an inorganic tin primarily used as a catalyst for synthesizing various monomeric and polymeric ester-based products such as nonionic surfactants, polyester polyols, and plasticizers. Typical end-use markets for REAXIS® C160 include plastics, coatings, and personal care. Its inorganic tin nature makes it an ideal tin catalyst for applications demanding the use of low-toxicity raw materials.
Reactivity
Due to its high tin concentration and small ligand, REAXIS® C160 (Stannous Oxalate) is a very active esterification catalyst with comparable reactivity to common organotin catalysts such as dibutyl and monobutyl tin oxides. Given its inorganic tin nature, REAXIS® C160 is stable at high reaction temperatures typical of many esterification reactions. Also, the use of Stannous Oxalate can result in final ester products with low color.
Package & Storage
- 55 lb (25 kg) plastic pail
REAXIS® C160 should be stored in the original packaging. The container should be closed tightly after each use to maximize shelf life. Characteristic of most inorganic tin (Sn(II)), the primary cause of instability would be oxidation.
Safety and Handling
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Technical Bulletins
Hazard Classification (US SDS)
| Section | Hazard Class | Category | Hazard Statement |
|---|---|---|---|
| A.1I | acute toxicity (inhal.) | 4 | H332 |
| A.2 | skin corrosion/irritation | 1C | H314 |
| A.3 | serious eye damage/eye irritation | 1 | H318 |
| A.4R | respiratory sensitization | 1 | H334 |
| A.4S | skin sensitization | 1 | H317 |
| A.9 | specific target organ toxicity - repeated exposure | 1 | H372 |
Hazard Pictograms (US SDS)
Transportation Information (US SDS)
| DOT | IMDG | ICAO | Environment Hazard | |
|---|---|---|---|---|
| UN Number | UN 3261 | UN 3261 | UN 3261 | non-environmentally hazardous acc. to the dangerous goods regulations |
| UN Proper Shipping Name | Corrosive solid, acidic, organic, n.o.s. | CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. | Corrosive solid, acidic, organic, n.o.s. | |
| Transport Class | 8 | 8 | 8 | |
| Packing Group | lll | lll | lll | |
Primary Composition Substance(s)
- tin(II) oxalate
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This information is provided to the best of our knowledge but without obligation. Reaxis is not liable for any incorrect or missing information. This data sheet becomes invalid upon publication of a new version. Please contact us for the latest version.
