manganese(ii) sulfate
manganese(ii) sulfate
CAS: 7785-87-7
Molecular Formula: MnO4S
manganese(ii) sulfate - Names and Identifiers
| Name | manganese(ii) sulfate |
| Synonyms | C039798 Mangan(II)-sulfat manganese sulfate Manganese Sulphate manganese(ii) sulfate MANGANOUS(II)SULPHATE Manganese Sulphate Mono Manganese(II)sulfateanhydrous Manganous sulphate, anhydrous Sulfuric acid manganese(II) salt |
| CAS | 7785-87-7 |
| EINECS | 232-089-9 |
| InChI | InChI=1/Mn.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/p-2 |
manganese(ii) sulfate - Physico-chemical Properties
| Molecular Formula | MnO4S |
| Molar Mass | 151 |
| Density | 3.250 |
| Melting Point | 700°C |
| Boling Point | decomposes at 850℃ [HAW93] |
| Water Solubility | g/100g solution H2O: 34.6 (0°C), 39.2 (25°C), 26.1 (100.7°C); solid phase, MnSO4 · 7H2O (0°C), MnSO4 ·H2O (25°C, 100.7°C) [KRU93] |
| Vapor Presure | 0Pa at 20℃ |
| Appearance | white orthorhombic crystals |
| Storage Condition | Room Temprature |
| Physical and Chemical Properties | Boiling Point: 850 Melting Point: 700 |
| Use | Used as a microanalytical reagent, mordant and paint desiccant |
manganese(ii) sulfate - Risk and Safety
| Risk Codes | R48/20/22 - R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S22 - Do not breathe dust. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 1760 |
manganese(ii) sulfate - Upstream Downstream Industry
| Raw Materials | Sulfuric acid Manganese |
| Downstream Products | Manganous borate Manganese(II) carbonate 2-Ethylhexanoate manganese Ammonia Mancozeb |
manganese(ii) sulfate - Nature
Open Data Verified Data
light pink monoclinic fine crystals. The relative density was 2. 95. Soluble in water, insoluble in ethanol. When heated above 200 ° C., the crystal water begins to be lost, and most of the crystal water is lost at about 280 ° C. At 700 ° C, an anhydrous salt melt is formed. 850 degrees began to decompose, due to different conditions and the release of sulfur trioxide, sulfur dioxide or oxygen, the residual black insoluble manganese tetroxide is completely decomposed at about 1150.
Last Update：2024-01-02 23:10:35
manganese(ii) sulfate - Nature
Open Data Verified Data
light pink monoclinic fine crystals. The relative density was 2. 95. Soluble in water, insoluble in ethanol. When heated above 200 ° C., the crystal water begins to be lost, and most of the crystal water is lost at about 280 ° C. At 700 ° C, an anhydrous salt melt is formed. 850 degrees began to decompose, due to different conditions and the release of sulfur trioxide, sulfur dioxide or oxygen, the residual black insoluble manganese tetroxide is completely decomposed at about 1150.
Last Update：2024-01-02 23:10:35
manganese(ii) sulfate - Preparation Method
Open Data Verified Data
- pyrolusite method: the pyrolusite powder and the pulverized coal were mixed at a compounding ratio of l00:20 (mass ratio) and subjected to reduction roasting in a baking furnace at 800 ° C. To produce manganese oxide. Cool to room temperature under the condition of isolated air, conduct acid hydrolysis in 15% ~ 20% dilute sulfuric acid, use manganese dioxide powder as oxidant to make Fe2 -- a Fea --, control pH ≤ 5.2, through pressure filtration, to remove Fea +, aluminum and other acid insolubles, and to settle to further remove calcium impurities. The manganese sulfate fine filtrate was concentrated by evaporation, crystallized, centrifuged and dried by hot air.
- Two-ore roasting method: the pyrolusite and pyrite are dried and crushed respectively, then the ingredients are mixed, and the 500-1.Oh is roasted at 600~0.5 ℃, and the clinker is leached with dilute manganese sulfate solution, after separating the wet residue, fine filtration is carried out, followed by evaporation, concentration and centrifugal separation. The wet material is dried and pulverized to obtain manganese sulfate product.
- reduction leaching method: the pyrolusite, sulfuric acid and a certain amount of reducing agent mixed reaction, after aging, water leaching, filtering slag to obtain manganese sulfate solution, and then concentrated, crystallization, separation, the manganese sulfate product was obtained by drying. The reducing agent used in the reaction can be selected from ferrous sulfate, pyrite, iron chips, starch, wood chips and the like according to the conditions. At present, ferrous sulfate and pyrite are widely used. The manganese sulfate solution was directly prepared by leaching with water with pyrite as reducing agent.
- magnesite method: the magnesite is subjected to crushing and sulfuric acid leaching reaction, and the resulting manganese sulfate solution is filtered to remove slag, and the filtrate is heated and concentrated, cooled to crystallize, centrifuged and dried to obtain a manganese sulfate finished product. In order to promote the reduction of high-priced manganese and the oxidation of low-priced ferrous iron, a small amount of catalyst should be added and air should be passed to achieve this purpose when leaching magnesite with sulfuric acid, or the waste electrolytic solution of electrolytic manganese dioxide and sulfuric acid are used to leach the minerals, and then the iron is removed by neutralization and filtration to prepare manganese sulfate solution.
- hydroquinone by-product recovery method: a large amount of waste liquid containing manganese sulfate and ammonium sulfate is produced by the oxidation reaction of aniline and manganese dioxide to produce hydroquinone. The waste liquid is usually neutralized by lime milk to remove impurities, and then heated and deammoniated to obtain manganese sulfate solution, after concentration, crystallization, dehydration, separation and drying, manganese sulfate products were obtained.
Last Update：2022-01-01 11:02:10
manganese(ii) sulfate - Use
Open Data Verified Data
is one of the important trace element fertilizer, which can be used as base fertilizer, seed soaking, seed dressing, topdressing and foliar spraying, which can promote crop growth and increase yield. In animal husbandry and feed industry, used as feed additives, can make livestock and poultry develop well, and has the effect of fattening. It is also a raw material for processing paint and ink drying agent manganese naphthalate solution. It is used as a catalyst in the synthesis of fatty acids. In addition, it can also be used as raw materials for paper making, ceramics, printing and dyeing, ore flotation, electrolytic manganese production and other manganese salt production.
Last Update：2022-01-01 11:02:09
manganese(ii) sulfate - Safety
Open Data Verified Data
packed in woven bags lined with polyethylene plastic bags, each with a net weight of 50kg. Store in a ventilated, dry warehouse. Prevent weathering and moisture. Protection against rain and sun exposure during transport. When loading and unloading should be light to prevent packaging damage. The stacking height should be 5 packs. In case of fire, it can be suppressed by water, sand and all kinds of fire extinguishing. Toxicity and protection: see manganese metal.
Last Update：2022-01-01 11:02:10
manganese(ii) sulfate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Product description | Manganese sulfate (English: Manganese sulfate) is a light pink monoclinic fine crystal at room temperature. Soluble in water, insoluble in ethanol, heated to more than 200 ° C began to lose crystal water, about 280 ° C lost most of the crystal water, 700 ° C into anhydrous salt melt, 850 ° C began to decompose, sulfur trioxide, sulfur dioxide, or oxygen is released. manganese is an element of group VII of the periodic table of the elements, manganese is not found in the Free State in nature, and is generally present in animals and plants in the form of compounds. I have found that manganese is an essential trace element for animals, and a large number of studies have shown that manganese has an important nutritional role in the animal body. It is an important component of arginine kinase, proline peptidase, pyruvate, manganese ion and the role of activation of a variety of enzymes, is part of the hydrolase, de-slope enzyme. Activator of phosphorylase, ribozyme, etc. Manganese can promote growth, enhance immunity and improve animal reproductive performance. manganese sulfate is one of the important trace element fertilizers, which can be used as base fertilizer, seed soaking, seed dressing, topdressing and foliar spraying, which can promote the growth and increase the yield of crops. In animal husbandry and feed industry, used as feed additives, can make livestock and poultry develop well, and has the effect of fattening. Also processing paint, ink drying agent; Manganese acid solution of raw materials; Synthesis of fatty acids used as catalysts; In addition, can also be used for paper, ceramics, printing and dyeing, ore flotation; raw materials for the production of electrolytic manganese and other manganese salts. (Chemical Book) Quality Standard: industrial grade HG/T 2962-1986 feed grade HG/T 2936-1987 |
| properties | The hydrate of manganese sulfate is reddish rhombic crystal. Manganese sulfate is soluble in water, insoluble in ethanol, odorless, non-flammable, easy to deliquescence, high temperature decomposition, due to different degrees of heating, manganese sulfate can release SO3, SO2 or oxygen, the residue was manganese dioxide or trimanganese tetraoxide. |
| Application | manganese sulfate is an important basic inorganic salt with a wide range of downstream applications, manganese sulfate can be added as a trace element to fertilizer, feed, to increase production, manure, promote growth and other purposes; In the field of chemical industry, manganese sulfate is the raw material for the manufacture of manganese salt, in addition to its coating, paper, ceramics, electronics, textiles and other fields are also widely used. |
| purpose | used as a microanalytical reagent, mordant and paint desiccant used as microAnalytical reagent and mordant |
| category | pesticide |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50 2150 mg/kg; Oral-mouse LD50: 2330 mg/kg |
| flammability hazard characteristics | non-combustible; |
| storage and transportation characteristics | warehouse low temperature, ventilation, dry |
| extinguishing agent | water, carbon dioxide, dry powder, sand |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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