摘要 |
Particles of thiocarbonate salts, thioesters or complexes are stabilized by being isolated from contact with water, CO2 and oxygen and are encapsulated in a coating effective to prevent future contact of the particles with water, CO2 and oxygen. The particles are preferably prepared in an environment from which water, CO2 and oxygen are excluded. The coating may be a wax, a water-free oil or grease, sulfur or a natural or synthetic polymerizable resin. Various preparative and encapsulating techniques are disclosed. |