Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Product Description
Magnesium sulfate is an inorganic salt compound, commonly existing in anhydrous form and hydrated forms (such as heptahydrate: MgSO?·7H?O). It appears as white crystalline powder or colorless crystals, odorless, with good water solubility. It is non-toxic, chemically stable, and widely used in pharmaceutical, agricultural, food, and industrial fields.
Uses
Pharmaceutical Field: Used as a laxative to relieve constipation; as an anticonvulsant for the treatment of eclampsia and preeclampsia during pregnancy; used to correct magnesium deficiency in the body and as an adjuvant treatment for hypertension and arrhythmia.
Agricultural Field: Important magnesium fertilizer and sulfur fertilizer, used to supplement magnesium and sulfur elements required for crop growth, improving crop yield and quality, suitable for various crops such as fruits, vegetables, and grains.
Food & Industrial Field: Used as a food additive (emulsifier, stabilizer, nutrient fortifier); used in water treatment, papermaking, textile, and cosmetic industries; also used as a drying agent and analytical reagent in laboratory.
Molecular Formula & Structure
- Molecular Formula (Anhydrous): MgSO?; Molecular Formula (Heptahydrate): MgSO?·7H?O
- Molecular Weight (Anhydrous): 120.37 g/mol; (Heptahydrate): 246.47 g/mol
- IUPAC Name (Anhydrous): Magnesium sulfate; (Heptahydrate): Magnesium sulfate heptahydrate
- Synonyms: Epsom salt (heptahydrate); Magnesium sulphate;
- EC Number: 231-298-2
- SMILES Code (Anhydrous): [Mg+2].[O-]S(=O)(=O)[O-]
- Chemical Structure: Inorganic ionic compound, composed of magnesium ions (Mg2?) and sulfate ions (SO?2?); hydrated forms contain crystal water, which is easy to lose when heated.
Physical & Chemical Properties
- Appearance (Anhydrous): White crystalline powder; (Heptahydrate): Colorless transparent crystals or white crystalline powder, odorless.
- Density (Anhydrous): 2.66 g/cm3; (Heptahydrate): 1.68 g/cm3 (25 °C); Melting Point (Anhydrous): 1124 °C (decomposes); (Heptahydrate): 150 °C (loses crystal water).
- Solubility: Highly soluble in water (25.5 g/100 mL at 20 °C); slightly soluble in ethanol; insoluble in acetone and ether.
- Boiling Point: Decomposes at high temperature (above 1124 °C) to produce magnesium oxide and sulfur oxides; Flash Point: Not flammable.
- Stability: Stable under normal temperature and dry conditions; anhydrous magnesium sulfate is hygroscopic; heptahydrate loses crystal water when heated to 150 °C, decomposes when heated to 450 °C.
- Toxicity: Non-toxic in normal use; excessive intake may cause gastrointestinal discomfort (diarrhea, nausea); no obvious irritation to skin and eyes.
Synthesis & Storage
- Synthesis: 1. Natural extraction: Obtained from natural mineral deposits (such as kieserite, epsomite); 2. Chemical synthesis: Prepared by the reaction of magnesium oxide, magnesium hydroxide or magnesium carbonate with sulfuric acid; 3. By-product recovery: Recovered from the by-products of chemical production (such as titanium dioxide production).
- Storage: Anhydrous form: Sealed in airtight, moisture-proof containers, stored in a cool, dry, well-ventilated place, avoid moisture absorption; Heptahydrate: Sealed in airtight containers, stored in a cool, dry place, avoid high temperature and direct sunlight; shelf life is 2–3 years when unopened.
- Safety: Operate in a well-ventilated place; wear gloves and goggles when handling large quantities; avoid inhalation of dust; if in contact with eyes, rinse with plenty of water; keep away from food and feed; dispose of waste in accordance with relevant regulations.
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