Manganese sulfate cas 7785-87-7 Best Price

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Manganese sulfate

Products Description

Name: Manganese sulfate

Cas: 7785-87-7

Purity: 99%min


Basic Info:

CAS No.:






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Brand Name

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Product Introduction:

Manganese sulfate (formula MnSO4, formula weight 151.00), its monohydrate is red orthorhombic crystals, with a relative density of 3.50 and a melting point of 700°C, easily soluble in water and insoluble in ethanol. It exists in various hydrate forms.

Manganese sulphate begins to decompose at 850°C and due to the different degrees of heating it can release SO3, SO2 or oxygen, the residue being manganese dioxide or trimanganese tetraoxide. When manganese sulfate crystal hydrate is heated to 280°C, it loses crystal water and becomes anhydrous.

Manganese sulfate is a trace element necessary for crops that synthesize fatty acids, so it can be used as a fertilizer or applied to the soil to increase production. The addition of manganese sulfate to animal feed has a fattening effect. Manganese sulfate is also a raw material and analytical reagent for the manufacture of other manganese salts. Manganese sulfate is also used in industrial production such as electrolytic manganese, dyes, papermaking and ceramics.

Because it is deliquescent, the scope of application is limited. Manganese sulfate is non-flammable and irritating. Inhalation, ingestion or transdermal absorption is harmful and has an irritating effect. Long-term inhalation of product dust can cause chronic manganese poisoning. Initially, there are mainly neurasthenic syndrome and nerve dysfunction, end-stage tremor palsy syndrome. It is harmful to the environment and can contaminate water bodies.

In addition, manganese sulfate has various hydrates such as manganese sulfate monohydrate and manganese sulfate tetrahydrate.

Product Nature:

  • Melting point: 700°C
  • Boiling point: decomposes at 850℃ [HAW93]
  • Density: 3.250
  • Form: white orthorhombic crystals


Product NameManganese sulfate
CAS No.7785-87-7
Appearance white orthorhombic crystals
Content99. min
Shelf Life2 years
Packing1kg/bag,25kg/bag or as your requirements

Physical and chemical properties:

  • Anhydrous manganese sulfate is a white orthorhombic crystal with a density of 3.25 g/cm3 and a melting point of 700°C, and is readily soluble in water.
  • Manganese sulfate monohydrate is a pale pink monoclinic crystal system with a density of 2.95 g/mL (25 °C), a melting point of 700 °C and a boiling point of 850 °C. It is unstable at room temperature and pressure. Easily soluble in water, solubility 5-10 g/100 mL (21°C), insoluble in ethanol.
  • When heated above 200°C, it begins to lose water of crystallization, loses most of the water of crystallization at about 280°C, and becomes anhydrous salt melt at 700°C. It begins to decompose at 850°C, releasing sulfur trioxide, sulfur dioxide, or oxygen depending on various conditions, while the remaining black insoluble manganese tetraoxide decomposes completely at about 1150°C.
  • Manganese sulfate tetrahydrate is soluble in water as translucent pale rose-colored crystals with a density of 2.107 g/mL (25°C).
  • It begins to decompose at 850°C and due to different degrees of heating it can release sulfur trioxide, sulfur dioxide or oxygen, the residue being manganese dioxide or trimanganese tetraoxide. Manganese sulfate can form hydrates containing 1, 2, 3, 4, 5, and 7 water of crystallization, and when heated above 280°C, it loses all water of crystallization and becomes anhydrous.

The main functions and uses:

  1. In the inorganic industry, it is used in the production of electrolytic manganese and in the manufacture of various manganese salts. It is used in the coating industry as a phosphating agent for metal products, in dryers and in the production of linseed manganese oleate, etc. It is an important trace element fertilizer in agriculture and a catalyst for chlorophyll synthesis by plants. Applying an appropriate amount of manganese sulfate solution can help a variety of economical crops grow and increase yields.
  2. Expected Effects of Manganese Sulfate Seed Dressing: Seed dressing with manganese sulfate solution can increase millet weight and increase yield by 10% to 15%.
  3. Seed dressing method: Before planting, dissolve 0.2 kg of manganese sulfate in 0.9 kg of water, then mix with 50 kg of wheat seeds.
  4. As one of the important trace element fertilizers, it can be used as a basic fertilizer, seed soaking, seed dressing, top dressing, and leaves, so that it can promote the growth of crops and increase the yield.
  5. It can be used as feed additive for livestock and poultry to develop well in livestock and feed industry, and has a fattening effect.
  6. It is also a dryer for handling paints and inks.
  7. It can also be used in papermaking, ceramics, printing and dyeing, ore flotation, electrolytic manganese production raw materials and other raw materials for manufacturing manganese salts.
  8. Also used in batteries, smelting catalysts, analytical reagents, mordants, additives, pharmaceutical excipients, etc.
  9. It is mainly found as a component of various enzymes in the pituitary, liver, pancreas, and bone mitochondria. Manganese participates in the body’s hematopoietic processes, promotes the oxidation of fats in cells, prevents atherosclerosis. A lack of manganese can lead to growth retardation, osteoporosis, and dyskinesia.

Related knowledge collation:

  • Toxicological information
    • Health Hazards: Harmful and irritating by inhalation, ingestion or dermal absorption. Long-term inhalation of product dust can cause chronic manganese poisoning, mainly in the early stages of neurasthenic syndrome and nerve dysfunction, and in the late stages of tremor palsy syndrome.
    • Environmental Hazards: Harmful to the environment and may contaminate water bodies.
    • Explosion Hazard: This product is non-flammable and irritating.
  • First aid measures
    • After skin contact: Remove contaminated clothing and rinse with running water.
    • In case of eye contact: Immediately lift eyelids and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.
    • Inhalation: Leave the site quickly with fresh air. Do not obstruct the airway. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. Seek medical attention.
    • Ingestion: Rinse mouth with water and drink milk or egg white. Seek medical attention.
  • Handling and storage
    • Operating Precautions: Closed operation, local exhaust. Prevent the release of dust into the workplace air. Operators must receive special training and must strictly follow work procedures.
    • It is recommended that workers wear self-priming filter dust masks, chemical safety goggles, toxic ingress protection overalls, and rubber gloves. Avoid dust formation. Avoid contact with acids. Equipped with leaky first aid equipment. Empty containers can be hazardous residues.
    • Storage Precautions: Store in a cool, well-ventilated warehouse. Keep away from fire and heat sources. Avoid direct sunlight. The package is sealed. Store separately from acids and avoid mixed storage. Storage areas must be equipped with materials suitable to contain leaks.


  •  Reidies, Arno H. “Manganese Compounds”. Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH.
  • ^ Wildner, M.; Giester, G. (1991). “The Crystal Structures of Kieserite-type Compounds. I. Crystal Structures of Me(II)SO4*H2O (Me = Mn, Fe, Co, Ni, Zn) (English translation)”. Neues Jahrbuch für Mineralogie – Monatshefte: 296-p306.
  • Wikipedia


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1. ≤50kg, it is recommended to use express delivery, usually called DDU service.

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