... powder form magnesium sulphate hepta is white crystal ,soluble in water,also called epsom salt, it has granular and ... crystal powder formWe are an ISO9001 certified company in China.We supply magnesium sulphate hepta (epsom salt, magnesium ... :10ppm max, Water insoluble:0.05%maxPackage in 25kg bags, 1000kg bags, or jumbo bags as client neededPrompt shipmentWe also have magnesium sulphate ...