| Customization: | Available |
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| CAS No.: | 12045-88-4 |
| Formula: | B4h14na2o17 |
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Magnesium sulfate heptahydrate, widely recognized by various names such as sulfur bitter, bitter salt, and laxative salt, holds the chemical formula MgSO4-7H2O. This remarkable compound presents itself as white or colorless needle-like or oblique columnar crystals, exuding no odor and possessing a cool, slightly bitter taste. With exposure to heat, it transforms by gradually losing its crystallization water, eventually becoming anhydrous magnesium sulfate. Its versatile applications span across industries-fertilizer, tanning, printing and dyeing, catalyst, papermaking, plastics, porcelain, pigments, matches, explosives, and fireproof materials. Furthermore, it serves as an essential agent in the textile industry for printing and dyeing thin cotton and silk, acting as a weighting agent for cotton silk and a filler for kapok products. In the medical field, it is cherished as a laxative salt.
Appearance and properties: This extraordinary compound belongs to the rhombohedral crystal system and exhibits tetragonal granular or rhombic crystals. It manifests as colorless and transparent structures with an aggregate that can display a white, rose, or green glassy luster. Its form varies from fibrous and needle-like to granular or powder. It is characterized by its odorless nature and a distinct bitter taste.
Solubility: This compound boasts impressive solubility in water, while being slightly soluble in ethanol and glycerol, making it a versatile ingredient for numerous applications.
1.Foodstuffs
Serving as a premium food fortifier, magnesium sulfate heptahydrate plays a pivotal role in enhancing nutritional value. In accordance with China's regulations, it is effectively utilized in dairy products at a concentration of 3-7g/kg. Its application extends to drinking liquids and milk beverages, where it is used at 1.4-2.8g/kg, and in mineral beverages, it is applied at a maximum of 0.05g/kg.
2.Industry
In industrial applications, this compound finds its niche when combined with calcium salt in brewer's water. By adding 4.4g/100l of water, it significantly enhances hardness by 1 degree. However, caution is advised, as excessive usage can result in a bitter taste and hydrogen sulfide odor.
Beyond its role in the brewing industry, magnesium sulfate heptahydrate is crucial in tanning, explosives, paper making, porcelain, fertilizers, and medical applications as oral laxatives and mineral water additives.
3.Agriculture
In the realm of agriculture, magnesium sulfate shines as a fertilizer due to its constituent magnesium, a vital chlorophyll component. It's especially beneficial for potted plants and magnesium-deficient crops like tomatoes, potatoes, and roses. Its superior solubility over other fertilizers gives it an edge. Moreover, its use as a bath salt is noteworthy.
| Alias | Sodium Tetraborate Pentahydrate;Boraxa Pentahydrate Sodium Tetraborate |
| Chemical formula | Na2B4O7·5H2O |
| Molecular weight | 291.3 |
| CAS | 12045-88-4 |
| Melting point | 75 °C |
| Water solubility | Water soluble |
| Density | 1.815 g/cm³ |
| Appearance | White or colorless needle-like or oblique columnar crystals |
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