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Magnesium Sulphate Heptahydrate

    Magnesium Sulphate Heptahydrate

     GradePurity(%min)MgSO4(%min)MgO(%min)Mg(%min)PH(5% H2O)Crystal size(≥90%)mmAAA989832.619.85.0-7.50.1-11-31-4AA9948.4816.239.75.0-7.5A9847.99169.65.0-7.5B95461595.0-7.51. Structural DescriptionThe unique structure of Magnesium Sulphate Heptahydrate underpins its high solubility and stability.1.1 Chemical StructureChemical Formula: MgSO₄·7H₂OMolecular Weight: 246.47 g/molHydration: Contains seven water molecules per magnesium sulfate unit, contributing to crystal stability and solubility.1.2 Physical AppearancePropertyDescriptionFormColorless or white crystalline powder or granulesSolubili...
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 Grade


Purity

(%min)


MgSO4

(%min)


MgO

(%min)


Mg

(%min)


PH

(5% H2O)


Crystal size

(≥90%)mm

AAA

98

98

32.6

19.8

5.0-7.5

0.1-1

1-3

1-4

AA

99

48.48

16.23

9.7

5.0-7.5

A

98

47.99

16

9.6

5.0-7.5

B

95

46

15

9

5.0-7.5


1. Structural Description

The unique structure of Magnesium Sulphate Heptahydrate underpins its high solubility and stability.

1.1 Chemical Structure

  • Chemical Formula: MgSO₄·7H₂O

  • Molecular Weight: 246.47 g/mol

  • Hydration: Contains seven water molecules per magnesium sulfate unit, contributing to crystal stability and solubility.

1.2 Physical Appearance

PropertyDescription
FormColorless or white crystalline powder or granules
SolubilityHighly soluble in water, insoluble in alcohol
OdorOdorless
TasteSlightly bitter
Crystal SystemOrthorhombic

1.3 Crystal Structure Explanation

  • The heptahydrate form ensures a stable lattice with water molecules bound to Mg²⁺ ions.

  • This hydration enhances solubility, making it ideal for rapid magnesium supplementation in agricultural or pharmaceutical applications.

  • The orthorhombic crystal system contributes to mechanical stability during storage and transport.


2. Technical Specifications

Technical parameters ensure consistency and suitability for industrial and commercial applications.

2.1 Key Technical Indicators

ParameterSpecificationTest Method
MgSO₄ Content≥99%Titration
Magnesium (Mg)9.8–10.5%ICP-OES / Atomic Absorption
Water Insoluble Matter≤0.05%Gravimetric
Heavy Metals (Pb, Cd, Hg)≤10 ppmICP-MS
pH (1% Solution)5–7pH Meter
Loss on Drying12–13%Thermogravimetric Analysis

2.2 Quality Assurance

  • Each batch is accompanied by a Certificate of Analysis (CoA).

  • Random sampling ensures compliance with pharmaceutical, food, or industrial-grade standards.

  • Continuous monitoring of moisture content prevents caking or degradation.


3. Environmental Standards

Magnesium Sulphate Heptahydrate is widely recognized for its eco-friendly properties, making it suitable for sustainable applications.

3.1 Environmental Compliance

StandardRequirementRelevance
REACHRegistration, Evaluation, Authorization, Restriction of ChemicalsEnsures safe chemical handling in Europe
RoHSRestriction of Hazardous SubstancesConfirms absence of heavy metals for safe industrial use
ISO 14001Environmental Management SystemPromotes sustainable production and handling practices

3.2 Environmental Advantages

  • Biodegradable and non-toxic, safe for soil and water systems.

  • Low heavy metal content minimizes environmental contamination.

  • Complies with agricultural and pharmaceutical environmental regulations.


4. Customer Feedback

Customer feedback highlights the practical performance, quality, and reliability of Magnesium Sulphate Heptahydrate.

4.1 Agricultural Industry

  • Farmers report improved crop yield and magnesium content in soil.

  • Water-soluble crystals dissolve quickly, facilitating foliar and soil applications.

4.2 Pharmaceutical Applications

  • Used as a raw material in medicines and dietary supplements.

  • High purity ensures consistency and regulatory compliance.

4.3 Industrial Feedback

  • Industries using MgSO₄·7H₂O for chemical processing or pH adjustment note excellent solubility and stability.

  • Suppliers providing certified batches improve operational efficiency and reduce batch-to-batch variability.

Customer Feedback Summary Table:

IndustryFeedbackKey Benefit
AgricultureRapid dissolution, improved soil MgIncreased crop yield
PharmaceuticalHigh purity, consistent qualityRegulatory compliance
Chemical IndustryStable solubility and compositionEfficient process control
Food IndustrySafe additive, tastelessProduct quality assurance

5. Applications

Magnesium Sulphate Heptahydrate has versatile applications across multiple industries.

5.1 Agriculture

  • Corrects magnesium deficiency in soil.

  • Promotes chlorophyll formation and photosynthesis.

  • Can be applied via soil amendment or foliar spray.

5.2 Pharmaceutical and Food

  • Used in laxatives, mineral supplements, and food additives.

  • Provides essential magnesium for human nutrition.

5.3 Industrial Applications

  • Serves as a neutralizing agent in chemical processes.

  • Used in water treatment, cement additives, and chemical synthesis.


6. Handling and Storage

Proper handling preserves crystal integrity and chemical effectiveness.

6.1 Storage Guidelines

  • Store in a cool, dry, ventilated area.

  • Keep containers tightly closed to prevent moisture absorption.

  • Avoid contamination with acids, metals, or other chemicals.

6.2 Handling Precautions

  • Use protective gloves and dust masks.

  • Avoid inhaling fine powders.

  • Ensure safe handling to prevent caking or loss of efficacy.


7. Advantages

  • High Purity: Ensures consistent chemical performance.

  • Eco-Friendly: Compliant with environmental standards.

  • Highly Soluble: Rapid dissolution in water for agricultural and industrial use.

  • Versatile: Suitable for agriculture, pharmaceuticals, food, and chemical industries.

  • Certified Quality: Accompanied by CoA and batch testing.


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