Does anyone you if the type of sulphur I can buy at the feed store can be sprinkled on dogs and cats also?

I'm asking because I read on the internet about "Flowers of Sulphur" which indicated it can be purchased at old time pharmacies and at organic grocery stores. Since I already have a sack of HiYield dusting sulphur from the local feed store, I'm trying to understand whether there is a difference in the chemistry of the two types of sulphur. Thanks so much.