Complex sentence: When applied at a rate of 20mg of potassium iodate per 1000mg of table salt, the chemical is beneficial in preventing goiter, while iodine intakes of 1200-9500mg in one dose have been known to cause death Agency for Toxic Substances & Disease Registry.
Split into simpler sentences: When applied at a rate of 20mg per 1000mg of table salt the chemical is beneficial in preventing goiter. On the other hand, iodine intakes of 1200-9500mg in one dose have been known to cause death Agency for Toxic Substances & Disease Registry.