Magnesium sulfate, also known as sulfur bitter, bitter salt, epsomite, epsom salt, industrial magnesium sulfate generally refers to the magnesium sulfate heptahydrate. It is white and comes in small oblique shape or oblique columnar crystal, odourless, bitter in taste and has the relative density of 1.68 g/cm3. Soluble in water, slightly soluble in ethanol and in the air (dry) for easy weathering powder.It is a kind of magnesium compound. 1mt bag, 25kg bag .We can also produce the bags according to customers' request. The 20' container can be packed about 24ton goods.