Basic magnesium sulfate powder, method for producing basic magnesium sulfate powder, resin composition containing basic magnesium sulfate powder, masterbatch pellet and molded article

摘要

A basic magnesium sulfate powder according to the invention has a surface which is at least partially coated with an inorganic phosphorus compound. The basic magnesium sulfate powder preferably has a phosphorus content of 0.001 to 5.0 mass%.