organotin / related product

Condensation catalyst


Product name: Methyltin maleate powder, Methyltin maleate, condensation catalyst

Product code: M-Maleate-P

Chinese name Methyl tin maleate
Foreign name Methyltin maleate
Outside View White powder
Tin content (%) 42.0±0.5
Project Metrics
Bulk density (g/cm) 1.0±0.1
Water content (%) ≤0.5

English name: Methyltin maleate

CAS number: —

Molecular formula: C6H8O4Sn

Methyltin maleate condensation catalyst


White powder

Product properties: white amorphous powder. It is compounded by maleic anhydride and methyl tin oxide. Slightly soluble in water. The product is used as a heat stabilizer for polyvinyl chloride. It has excellent thermal stability, weather resistance, no vulcanization pollution, no melting point when heated, and will not reduce the softening point and impact of hard products. This product lacks lubricity and has poor processing performance. Mainly used for PVC hard products, ABS engineering plastics, condensation catalyst. The general dosage is: 0.5%-2%.


Keep dry during storage, and the temperature should be above 10℃. Crystals will be precipitated below 10°C and will not affect the use effect after heating and melting.


Store in an airtight container in a cool, dry place. The storage place must be locked, and the key must be handed over to the technical experts and their assistants for safekeeping. The storage place must be far away from oxidants and water sources.

General-purpose plastic and plastic-sprayed iron drums or glass containers are packaged and transported in accordance with general chemical management regulations.


Packaging: It is suitable to be stored in glass containers, plastic containers, and metal utensils resistant to corrosion by chlorine, and kept tightly sealed. Store in a cool, dry place, keep the container tightly closed, and avoid contact with oxides. Do not inhale dust and avoid contact with skin and mucous membranes. Smoking, eating and drinking are prohibited in the workplace. After work, take a shower and change clothes. Store contaminated clothes separately and use them after washing. Maintain good hygiene habits.