Caustic Calcined Magnesia (CCM) — MgO 85–95%
Caustic calcined magnesia (CCM) calcined at 700–1000 °C with high chemical activity. MgO grades 85%, 90%, 92%, 94% and 95%; custom mesh from 120 mesh powder to…
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Magnesium Sulphate Heptahydrate (Epsom Salt)
Magnesium Sulfate Heptahydrate (MgSO₄·7H₂O), commonly known as Epsom salt, is a high-purity inorganic crystalline compound with stable physical and chemical properties. It appears as colorless transparent crystals or white granular powder, odorless, slightly bitter, and features excellent water solubility with rapid dissolution in normal-temperature water. As a premium natural source of magnesium and sulfur elements, this product covers industrial grade, agricultural grade, feed grade and food g
Technical Specifications
| Specification | Value |
|---|---|
| Mesh size | 0.1-4mm,2-4mm |
| Whiteness | Crystals |
| Purity | 99.5 |
Size: 0.1-4mm
Purity: 99.5
MgSO4: 48.59
Water Soluble MgO: 16.27
PH Valure:5-8
High Purity & Low Impurity
: Strict production control ensures the product has extremely low insoluble matter and heavy metal content, stable component content, no pollution, and meets multi-industry high-standard usage requirements, avoiding quality fluctuations caused by impure raw materials.
Fast Water Solubility
: Compared with ordinary magnesium sulfate products, our magnesium sulfate heptahydrate dissolves quickly and completely in water without precipitation and residue, suitable for foliar spraying, drip irrigation, industrial liquid preparation and other scenarios, improving use efficiency.
Multi-scenario Universal Grade
: One product covers agricultural fertilization, industrial processing, feed addition and food auxiliary applications, with strong versatility, helping customers reduce procurement costs and simplify material management.
Stable Quality & Long Shelf Life
: Adopts sealed anti-moisture packaging technology, effectively preventing agglomeration and deterioration. The shelf life can reach 3–5 years under dry and ventilated storage conditions, with stable performance in long-term storage.
Factory Direct Supply
: Large-scale production capacity supports bulk orders and customized packaging (25kg bag, ton bag, customized specification), with fast delivery and flexible order cycle.
Agricultural Industry
: As a high-efficiency magnesium and sulfur fertilizer, it supplements essential trace elements for crop growth, promotes chlorophyll synthesis, improves crop photosynthesis efficiency, enhances plant disease resistance and stress resistance, effectively improves crop yield and quality, and solves crop yellowing, slow growth and other deficiency symptoms. Suitable for grain crops, fruits, vegetables, flowers and economic crops.
Industrial Manufacturing
: Used as raw materials for printing and dyeing industry, papermaking auxiliary, textile weighting agent, chemical reaction stabilizer and building material additive. It can also be used in water treatment projects to adjust water quality pH value and remove harmful impurities, widely applied in environmental protection and chemical industry production.
Feed Processing Industry
: As a high-quality feed additive, it supplements magnesium nutrition for livestock and poultry, promotes animal bone development and metabolic circulation, improves animal immunity, and reduces breeding diseases, compliant with international feed safety standards.
Food & Pharmaceutical Industry
: Food-grade magnesium sulfate heptahydrate can be used as food additive and nutritional fortifier; pharmaceutical-grade products meet USP/EP standards, applied in medical adjuvant preparation and daily health care fields, safe and reliable.
Related Products
Ultra-High Purity Electro-Fused Magnesia (MgO ≥ 98%)
Fused Magnesia, also known as Electro-Fused Magnesia, is a mainstream industrial refractory raw material processed by electric high-temperature smelting. With…
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Industries that use this grade
Further reading: definitions, comparisons, selection
Frequently Asked Questions
Which magnesia products do you supply?
Caustic calcined magnesia (CCM, MgO 85–95%), dead burnt magnesia (DBM, MgO 96–99%), electro-fused magnesia (MgO ≥ 98%), high purity magnesia sand, plus magnesium sulphate heptahydrate (99.5%) and monohydrate.
What is the difference between caustic calcined, dead burnt and fused magnesia?
CCM is calcined at 700–1000 °C and is chemically reactive, used for magnesium cement, desulphurisation and feed. DBM is sintered above 1600 °C for high density and is the base for refractory bricks. Fused magnesia is arc-melted above 2800 °C, giving the largest crystals and the best slag resistance.
Can I get custom MgO content and particle size?
Yes. MgO can be tailored across 85%, 90%, 92%, 94%, 95%, 96%, 97%, 98% and 99%, with powders from 120 mesh to granules of 0–1 mm, 1–3 mm, 3–5 mm or larger.
Do you provide third-party test reports?
Yes. We test every batch in-house and can arrange SGS or other third-party inspection on request, at the buyer's cost.
Need a custom specification?
Tell us your target mesh size, whiteness and application. We send samples and a quotation within 24 hours.