XRD Chemical is a professional Magnesium Sulfate Heptahydrate manufacturer and supplier in China, offering high-purity Epsom salt (MgSO₄·7H₂O, 99% min) for agriculture, animal feed, pharmaceutical, and personal care applications.
Magnesium sulfate heptahydrate, commonly known as Epsom salt, is a white, odorless, crystalline solid with a molecular weight of 246.47 g/mol . It is highly soluble in water (approximately 710 g/L at 20°C) and its aqueous solution is neutral. The heptahydrate form is the most common and widely used grade of magnesium sulfate, valued for its versatility and ease of handling .
In agriculture, Epsom salt is widely used as a magnesium and sulfur fertilizer to correct magnesium deficiency in crops such as potatoes, tomatoes, peppers, and roses . In animal feed, it provides bioavailable magnesium for livestock nutrition. Pharmaceutical-grade magnesium sulfate heptahydrate meets USP and BP standards for use as an electrolyte replenisher. It is also a popular ingredient in bath salts, foot soaks, and personal care products for soothing sore muscles. Other applications include tofu coagulation, textile manufacturing, and paper production .
Why Choose XRD Magnesium Sulfate Heptahydrate:
• 99% purity, white crystalline form (Epsom salt)
• Highly soluble in water (710 g/L at 20°C) — fast dissolution
• Essential magnesium and sulfur source for correcting crop deficiencies
• Feed grade, pharmaceutical grade, and industrial grade available
• Also suitable for bath salts, personal care, and tofu coagulation
• 20,000-ton annual capacity ensures supply stability
• Free samples available for evaluation
• COA and MSDS documents available for download
