This is also a particularly active super-speed accelerator that promotes even faster than the ammonium salt of dithiocarbamate. The vulcanization flat range is small. Generally used in latex and low temperature vulcanizate, only used in dry glue. A commonly used variety is zinc n-butyl xanthate, which is marketed as the accelerator ZBX. This product is white powder, has a special smell, non-toxic. The specific gravity is 1.40. Decomposes on heating. There is a tendency to slowly decompose during storage, so low temperature (below 10 ° C) storage is required. It is a super accelerator and does not pollute.