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Synonym(s):
Epsom salts, Magnesium sulfate heptahydrate
Linear Formula:
MgSO4 · 7H2O
CAS Number:
l Product Description
Magnesium sulfate heptahydrate is a white or colorless acicular or oblique columnar crystal, odorless, cool and slightly bitter.
1. Widely used in industry for the production of anhydrous magnesium sulfate, fertilizer, gel, leather, printing and dyeing, catalyst,
Manufacture of paper, plastics, pigments, and fireproof materials, printing and dyeing weights and fillers for kapok products.
2. Magnesium sulfate is a mineral nutrient commonly used as a feed additive. Animals get magnesium sulfate from their food, but sometimes they need additional magnesium sulfate to meet their nutritional needs. The main effect of magnesium sulfate on animal health is to stabilize the rumen and promote the absorption of nutrients from other substances. In addition, magnesium sulfate can also promote the absorption and utilization of other important minerals such as calcium and phosphorus.
3. Magnesium sulfate heptahydrate is used in light industry to produce fresh yeast, MSG, beverages, mineral water; In the food industry for lactic acid, MSG, etc. In food additives, it is used as a nutritional supplement, curing agent, flavor enhancer, processing aid, etc.
l Technical Parameters
1. Magnesium Sulfate Heptahydrate
Test Item | Specification | Analysis Results |
MgSO4.7H2O | 99.50% min | 99.55% |
MgSO4 | 48.59%min | 48.64% |
MgO | 16.20%min | 16.26% |
Mg | 9.8%min | 9.86% |
Fe(Iron) | 0.0015%max | 0.0014% |
Cl(Chlorid) | 0.015%max | 0.014% |
Pb(Heavy metal) | 0.0006%max | 0.0001% |
S | 13.00%min | 13.62% |
As(Arsenic) | 0.0002%max | 0.0001% |
PH | 5-9 | 6.2 |
Cd | 0.0002%max | 0.0001% |
Hg | 0.0001%max | 0.0001% |
Insoluble matter | 0.05%MAX | 0.01% |
Particle Size | 0.1-1mm, 1-3mm, 2-4mm | |
2. Magnesium Sulfate Heptahydrate Feed Grade
ITEMS | STANDARD | RESULT |
APPEARANCE | Colorless or white crystalline powder | White crystal |
Magnesium sulfate net content (after burning)% | 99.82 | |
Magnesium content (Mg)% | ≥9.7 | 9.9 |
Lead(Pb) mg/kg | ≤2 | 0.02 |
Arsenic ( As) mg/kg | 0.3 | |
Mercury(Hg) mg/kg | ≤0.2 | 0.03 |
Chloride (as Cl)% | ≤0.1 | 0.02 |
Clarity test | Clear | Clear |
Loss on ignition% | 40.0-52.0 | 50.64 |
Particle Size | 0.1-1mm, 1-3mm, 2-4mm | |
3. Magnesium Sulfate Heptahydrate Food Grade
ITEMS | STANDARD | RESULT |
Magnesium sulfate content after burning% | ≥99.0 | 99.2 |
Lead(Pb) mg/kg | ≤2 | 0.03 |
Selenium(Se) mg/kg | ≤30 | <30 |
PH (50g/L aqueous solution) | 5.0-7.5 | 6.6 |
Chloride (as Cl)% | ≤0.03 | <0.03 |
Arsenic ( As) mg/kg | ≤3 | 0.0038 |
Iron (Fe)% | ≤20 | 0.75 |
Loss on ignition% | 40.0-52.0 | 50.7 |
Heavy metal (as Pb) mg/kg | ≤10 | <10 |
APPEARANCE | Colorless or white;crystal or powder | White crystal |
Particle Size | 0.1-1mm, 1-3mm, 2-4mm | |
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