Overview
Stannous oxalate (CAS 814-94-8 ), also known as tin oxalate, is a tin(II) salt used primarily as a catalyst and catalyst precursor in polymer synthesis and specialty chemical manufacturing.
It enables controlled reaction pathways in esterification and polycondensation processes where precise tin-based catalysis is required. In plastics and polymer production, it catalyzes polycondensation reactions.
This is particularly useful in the manufacture of polyesters and biodegradable polymers such as polylactic acid (PLA). Personal care formulators use it as a stabilizing and chelating agent.
It helps to sequester metal ions that would otherwise degrade sensitive formulations. In pharmaceutical and biotech applications, it functions as a tin source in synthesis intermediates.
It is also used in radiolabeling processes where controlled tin(II) chemistry is critical. Water treatment applications leverage its chelation activity to manage trace metal interference.
This management is vital in treatment chemical formulations. Stannous oxalate is supplied as a white to off-white crystalline powder available in technical and high-purity grades.
Pharmaceutical-grade material is produced to meet the quality requirements of regulated synthesis applications. Packaging ranges from laboratory-scale quantities to bulk industrial supply.
The availability depends on the specific grade and end-use specification required by the client. This ensures the material meets the necessary standards for industrial or lab use.
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Physical Properties
| Melting Point | 280 °C (decomp) |
| Boiling Point | 413.5°C[at 101 325 Pa] |
| Density | 3.560 g/cm³ |
| Color | white |
| Form | Powder |
| Water Solubility | Soluble in dilute HCl. Insoluble in water.Soluble in acids. Insoluble in water and acetone. |
| Vapor Pressure | 0Pa at 25℃ |
| Log P | -4.06--0.456 at 20-23℃ |
Safety & Handling
Danger GHS05 GHS07 GHS08 Hazard Statements H302 Harmful if swallowed H303 May be harmful if swallowed H312 Harmful in contact with skin H314 Causes severe skin burns and eye damage H317 May cause an allergic skin reaction H318 Causes serious eye damage H319 Causes serious eye irritation H332 Harmful if inhaled H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled H335 May cause respiratory irritation H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure H302+H312+H332 Harmful if swallowed, in contact with skin or if inhaled Precautionary Statements P233 Keep container tightly closed. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 In case of inadequate ventilation wear respiratory protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P403 Store in a well-ventilated place. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P342+P316 Get emergency medical help immediately. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29171100 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 814-94-8
- EC Number
- 212-414-0
- Mol. Weight
- 206.73
- HS Code
- 29171100
- Category
- Salts & Minerals