CAS No: 10034-99-8 (MgSO47H2O)
Molecular formula: MgSO47H2O
Relative molecular mass: 246.47
Magnesium sulfate heptahydrate, also known as sulfur bitter, bitter salt, epsomite, or Epsom salt, is a magnesium-containing compound.In the air (drying), it is easy to be weathered into powder, and when heated, the crystal water is gradually removed to become anhydrous magnesium sulfate.
Project | Magnesium sulfate heptahydrate |
(1) Appearance | Colorless or white crystals, no lumps |
(2) The mass fraction of water-soluble magnesium (calculated as Mg) / % ≥ | 9.5 |
(3) The mass fraction of water-soluble sulfur (calculated as S) / % ≥ | 12.5 |
(4) Mass fraction of chloride ion (calculated as Cl-) / % ≤ | 2.5 |
(5) Mass fraction of free water*/% ≤ | 6.0 |
(6) Mass fraction of water-insoluble matter / % ≤ | 0.5 |
(7) Particle size (2.00mm—4.00mm) / % ≥ | — |
(8) PH value | 5.0~9.0 |
Note: The "—" in the index indicates that this item is not required in the technical requirements of this category of products. | |
* The mass fraction of free water is subject to the factory inspection |
In agriculture and horticulture, magnesium sulfate is used in soils that are deficient in magnesium (magnesium is one of the nutrient elements necessary for crop growth and the core element of chlorophyll, which plays a very important role in the photosynthesis of plants, Equivalent to the "artificial sun" in vegetable greenhouses) is usually used for potted plants or magnesium-deficient crops, such as tomatoes, potatoes, roses, etc. The advantage over other fertilizers is higher solubility.
25kg or 50kg bags, the inner layer of plastic film, the outer layer of woven bags or determined according to user needs, the product is stored in a dry, ventilated and cool place indoors.