Magnesium sulfate anhydrous CAS：139939-75-6
High Solubility: Magnesium sulfate dissolves rapidly in water, which enables its application in a broad range of chemical manufacturing and industrial operations.
Hygroscopic Nature: It displays deliquescent characteristics, readily absorbing moisture from the air, making it suitable for use as a drying agent in temperature-controlled environments.
Stable and Safe: The compound maintains stability under normal handling conditions and poses minimal hazards, guaranteeing secure utilization across various industrial scenarios.
Versatile Form: Supplied in both powdered and crystalline formats, magnesium sulfate can be easily processed to meet the requirements of agricultural, pharmaceutical, and general industrial applications.
Anhydrous magnesium sulfate, commonly referred to as Epsom salt, bitter salt, or sulfur bitter, is a magnesium-based chemical compound. It typically presents as colorless or white hygroscopic crystals, or a fine white powder. This material is odorless, has a distinct bitter-salty taste, and exhibits deliquescent properties.
When in its heptahydrate form, magnesium sulfate loses six water molecules at 150°C and becomes completely anhydrous when heated to 200°C. The anhydrous form has a density of 2.66, melts at 1124°C, and decomposes at this temperature. It is highly soluble in water, moderately soluble in alcohol, ether, and glycerol, and insoluble in acetone.
Application of Magnesium sulfate
Magnesium sulfate is suitable for sensitive molecular biology applications. It used as a component of bath salts and beauty product. It is utilized by the athletes to soothe sore muscles and effective in the removal of splinters. It is commonly used as a desiccant in organic synthesis due to its affinity for water. It acts as a brewing salt in beer production to adjust the ion content of the brewing water as well as enhance enzyme action. It plays a vital role as an antidote for barium chloride poisoning. . It is useful in controlling seizures associated with epilepsy, glomerulonephritis, or hypothyroidism.
Magnesium sulfate is used widely in several industries including fertilizer, cement, textile, chemicals, and medicine. In the cement industry, it is used in manufacturing oxysulfate cement. In medicine, it is an analgesic and cathartic. An important application of anhydrous magnesium sulfate in the laboratory involves drying organic solvents required for syntheses and GC analysis.
In the textile industry, magnesium sulfate is used in finishing composition for dressing cotton; for weighting and sizing silk; as a mordant for fixing basic dyestuffs on wool; and in fireproofing fabrics. It also is a component of certain types of electrolytic plating baths; of various photographic solutions; of cosmetic lotions. It is a catalyst carrier; a dietary supplement in cattle feed; a coagulant for rubber and plastic; and is used in making citric acid and several magnesium salts, such as magnesium stearate.
Parameter
| Melting point | 1124 °C |
| density | 1.07 g/mL at 20 °C |
| bulk density | 600kg/m3 |
| vapor density | <0.01 (vs air) |
| vapor pressure | <0.1 mm Hg ( 20 °C) |
| storage temp. | no restrictions. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | powder (very fine) |
| Specific Gravity | 2.66 |
| color | slightly gray |
| Odor | at 100.00 %. odorless |
| PH | 7.9 (50g/l, H2O, 25℃) |
| Odor Type | odorless |
| Water Solubility | Soluble in water. Slightly soluble in alcohol, glycerol. Insoluble in acetone. |
| Sensitive | Hygroscopic |
| λmax | λ: 260 nm Amax: 0.03 |
| λ: 280 nm Amax: 0.02 | |
| Merck | 145,691 |
| Dielectric constant | 8.2（Ambient） |
| Stability: | Stable. Hygroscopic. |
| LogP | -1.031 (est) |
| CAS DataBase Reference | 7487-88-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Magnesium sulfate(7487-88-9) |
| EPA Substance Registry System | Magnesium sulfate (7487-88-9) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 22-24/25-36-26 |
| WGK Germany | 1 |
| RTECS | OM4500000 |
| F | 3 |
| TSCA | Yes |
| HS Code | 28332100 |
| Hazardous Substances Data | 7487-88-9(Hazardous Substances Data) |
