CAS 2273-45-2


Product Name: Dimethyl tin oxide 2273-45-2

Product designation: DMTO


Basic Information:

English name: Dimethyltin oxide

CAS number: 2273-45-2

Molecular formula: C2H6OSn


Chinese name dimethyl tin oxide

English name Dimethyltin oxide

Nicknamed dimethyl tin oxide; dimethyl tin oxide

Chemical formula C2H6OSn

Molecular weight 164.7784

CAS Registry Number 2273-45-2

Boiling point: °Cat760mmHg

Safety Instructions: 22-36/37/39


Physical data:

  1. Properties: white powder
  2. Density (g/L, 25ºC): Not determined
  3. Relative vapor density (g/mL, air=1): Not determined
  4. Melting point (ºC): not determined
  5. Boiling point (ºC, normal pressure): not determined
  6. Boiling point (ºC 20mmHg): Not determined
  7. Refractive index (nD20): not determined
  8. Flash point (ºC): Not determined
  9. Specific rotation (): Not determined
  10. Spontaneous ignition point or ignition temperature (ºC): not determined
  11. Vapor pressure (Pa, 25ºC): Not determined
  12. Saturated vapor pressure (kPa, 20ºC): Not determined
  13. Heat of combustion (KJ/mol): Not determined
  14. Critical temperature (ºC): not determined
  15. Critical pressure (KPa): Not determined
  16. Logarithm of oil-water (octanol/water) partition coefficient: not determined
  17. Upper explosion limit (%, V/V): Not determined
  18. Lower explosion limit (%, V/V): Not determined
  19. Solubility: not decomposable



White powder, insoluble in water, soluble in strong acid aqueous solution such as hydrochloric acid, sulfuric acid, nitric acid

This product is mainly used for the production of PVC heat stabilizers, catalysts for the production of polyester resins for powder coatings, and catalysts for the production of some antioxidant products


Storage and transportation:

Should be sealed and stored in a dry, cool and ventilated warehouse



200KG/drum Storage: It is recommended to store in a dry and cool area with proper ventilation. After the original packaging, please fasten the packaging cover as soon as possible to prevent the water and other substances from mixing into the product and affecting its performance. Store in a cool, dry place, keep the container sealed and avoid contact with oxides. Do not breathe dust, avoid skin and mucous membrane contact. Smoking, eating and drinking are prohibited in the workplace. After work, shower and change clothes. Store contaminated clothing separately and wash it before reuse. Maintain good hygiene habits.

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