Description
An inorganic manganese salt of sulfuric acid, supplied as the monohydrate (approximately 32 percent elemental manganese) or tetrahydrate (approximately 25 percent). The dominant commercial manganese source for fertilizer, feed, and battery applications.
Pale pink to pale rose crystalline powder, freely soluble in water yielding a slightly acidic solution. Functions as a manganese source for nutritional fortification, an agricultural micronutrient fertilizer, a feed supplement, and a precursor in lithium-manganese battery cathode production.
We supply food-grade, pharmaceutical-grade, feed-grade, agricultural-grade, and battery-grade Manganese Sulfate from manufacturers in China holding ISO, FSSC 22000, Halal, Kosher, and other certifications relevant to the product and production.
Common market grades include USP and EP pharmaceutical-grade monohydrate for human supplement and parenteral use, food-grade monohydrate for premix and fortification applications, agricultural-grade for fertilizer use, feed-grade for animal nutrition, and high-purity battery-grade for lithium-ion cathode precursor synthesis. Bulk and reduced-MOQ shipments with batch-level COA covering assay, elemental manganese, heavy metals, and microbiology.
Introduction
Manganese is an essential trace element and cofactor for several key enzymes including manganese superoxide dismutase (Mn-SOD), arginase, and pyruvate carboxylase. Manganese is required for bone development, antioxidant defense, and carbohydrate and amino acid metabolism.
Industrial production uses reaction of manganese oxide, carbonate, or sulfide ore with sulfuric acid, followed by purification (typically by sulfide precipitation of heavy metal contaminants), crystallization, and drying. Battery-grade material requires additional purification steps to meet sub-ppm limits on key impurities (iron, cobalt, nickel, lead).
Regulatory status includes USP, EP, JP, and BP monographs for pharmaceutical use, recognition as a permitted manganese source for food fortification under EU Regulation 1925/2006, GRAS notifications for specific commercial articles, and authorization as a feed additive under EU Regulation 1831/2003.
Bioavailability of manganese from sulfate is moderate (around 3 to 5 percent fractional absorption) and is the reference inorganic form. Manganese is tightly regulated by hepatic excretion and homeostatic mechanisms, with relatively narrow intake ranges between deficiency and the upper limit. Organic chelate forms (bisglycinate, ascorbate) are available for premium positioning but show smaller bioavailability advantages than for other minerals.
Where it is used
- Manganese supplementation in capsules, tablets, and multivitamins
- Pharmaceutical parenteral manganese supplementation
- Agricultural micronutrient fertilizer for manganese-deficient soils
- Animal feed manganese fortification (poultry, swine, ruminants)
- Aquaculture feed manganese supplementation
- Bone health and connective tissue formulations
- Antioxidant enzyme cofactor supplements (SOD)
- Lithium-ion battery cathode precursor (battery grade)
- Ceramic glaze and pigment production
Technical data
| Item | Specification |
|---|---|
| Appearance | Pale pink to pale rose crystalline powder |
| Assay (monohydrate basis) | ≥ 99.0% (pharmaceutical grade) |
| Elemental manganese (monohydrate) | 32 to 33% w/w |
| pH (5% solution) | 3.7 to 5.5 |
| Iron | ≤ 50 mg/kg (food/pharma grade) |
| Heavy metals (as Pb) | ≤ 10 mg/kg |
| Arsenic | ≤ 2 mg/kg |
| Cadmium | ≤ 1 mg/kg |
| Mercury | ≤ 0.1 mg/kg |
| Insoluble matter | ≤ 0.01% |
| Loss on drying (105 °C) | ≤ 12.0% (monohydrate) |
| Microbiology | Meets pharmacopoeial limits for food/pharmaceutical grade |
| Shelf life | 36 months from manufacture under recommended storage |
| Storage | Cool, dry, sealed; protect from humidity |
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