Magnesium sulfate granulesⅠ
| TEST ITEMS | MgSO4 · 7H2O | MgSO4 · H2O | MgSO4 |
| MAIN CONTENT | ≥99.0% | ≥99.0% | ≥98.0% |
| MAGNESIUM SULPHATE(MgSO4) | ≥48.59% | ≥86.00% | ≥98.00% |
| MAGNESIUM OXIDE(MgO) | ≥16.24% | ≥28.69% | ≥32.66% |
| MAGNESIUM(Mg) | ≥9.80% | ≥17.21% | ≥19.6% |
| FERRON(Fe) | ≤0.0015% | ≤0.0015% | ≤0.0015% |
| CHLORIDE(Cl) | ≤0.014% | ≤0.014% | ≤0.014% |
| HEAVY METAL(Pb) | ≤0.0006% | ≤0.0008% | ≤0.0008% |
| ARSENIC(As) | ≤0.0002% | ≤0.0002% | ≤0.0002% |
Magnesium Sulfate Heptahydrate is a moderately water and acid soluble Magnesium source for uses compatible with sulfates. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. Organometallic forms are soluble in organic solutions and sometimes in both aqueous and organic solutions. Metallic ions can also be dispersed utilizing suspended or coated nanoparticles and deposited utilizing sputtering targets and evaporation materials for uses such as solar energy materials and fuel cells.
The role of magnesium sulfate in industrial applications:
1.In the leather industry, magnesium sulfate is used as a filling reinforcement agent to enhance heat resistance.
2.In printing and dyeing applications, magnesium sulfate can be used as a fabric dyeing agent, weighting agent, and mordant to ensure uniform dyeing with a pH value between 6 and 7.
3. In the application of fireproof materials, magnesium sulfate is used as a flame retardant for plastics such as acrylic resin.
4. In the field of papermaking, magnesium sulfate is used as a synthetic additive for ABS and PVC resins.
5. In organic chemicals, magnesium sulfate can be used as a desiccant and dehydrating agent, used in printing and dyeing of thin cotton cloth and silk, as well as as as a weighting agent for cotton silk and a filler for kapok products.
6. In the electroplating industry, magnesium sulfate is used as a conductive salt to improve the conductivity of the plating solution and make the coating white and soft; Magnesium sulfate is used as an additive in aluminum smelting to color the surface of aluminum.
7. In terms of environmental protection, magnesium sulfate is used for industrial wastewater treatment to coagulate and settle waste water, making it meet the discharge standards.
Magnesium sulfate granulesⅡ
| Grade | Magnesium Sulphate Heptahydrate | Magnesium Sulphatemonohydrate | Magnesium Sulphate anhydrous |
| Item | MgSO4 @ 7H2O | MgSO4 @ H2O | MgSO4 |
| Appearance | White Crystal | White power and granule | White powder and granule |
| Assay %min | 99.5 | 99 | 98 |
| MgSO4 %min | 48.59 | 86 | 98 |
| MgO %min | 16.20 | 28.60 | 32.60 |
| Mg %min | 9.80 | 17.21 | 19.6 |
| pH(5% Solution) | 5.0-7.5 | 5.0-9.2 | 5.0-10.0 |
| Heavy metal(as Pb)%max | 0.0006 | 0.0008 | 0.0008 |
| (As)%max | 0.0002 | 0.0008 | 0.0008 |
The role of magnesium sulfate in agricultural applications:
1. In the field of fertilizers, magnesium sulfate can be directly used as base fertilizer, topdressing, and foliar fertilizer.
2. Magnesium sulfate is a high-quality dual nutrient fertilizer that can increase crop yield, improve fruit taste, and loosen soil.
3. Magnesium in magnesium sulfate is an important component of chlorophyll and pigments, and a metal element in chlorophyll molecules. It can promote photosynthesis, promote the formation of carbohydrates, proteins, and fats, and promote metabolism in crops. It can also improve the disease resistance of crops and prevent the invasion of pathogens, thereby improving the quality of fruits, vegetables, and other crops.
4. Magnesium sulfate has the advantage of higher solubility compared to other fertilizers and is commonly used for potted plants or magnesium deficient crops, such as tomatoes, potatoes, roses, etc. It plays an important role in improving productivity and agricultural yield.
