Manganous sulfate monohydrate
Manganese (II) Sulfate Monohydrate
CAS: 10034-96-5
Molecular Formula: H2MnO5S
Manganous sulfate monohydrate - Names and Identifiers
Manganous sulfate monohydrate - Physico-chemical Properties
| Molecular Formula | H2MnO5S |
| Molar Mass | 169.02 |
| Density | 2.95 |
| Melting Point | 700 °C |
| Boling Point | 850 °C |
| Water Solubility | 5-10 g/100 mL at 21 ºC |
| Solubility | Easily soluble in water, insoluble in ethanol. |
| Vapor Presure | 3.35E-05mmHg at 25°C |
| Appearance | Pink crystalline powder |
| Color | Pink |
| Exposure Limit | ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3OSHA: Ceiling 5 mg/m3NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3 |
| Merck | 14,5739 |
| PH | 3.0-3.5 (50g/l, H2O, 20℃) |
| Storage Condition | Store at +15°C to +25°C. |
| Sensitive | Hygroscopic |
| MDL | MFCD00149159 |
| Physical and Chemical Properties | Character light pink monoclinic fine crystal. density 2.95 melting point 700°C boiling point 850°C water-soluble 5-10g/100 mL at 21°C soluble in water, insoluble in ethanol. |
| Use | Used in fertilizer, medicine, paint, paper, ceramics, printing and dyeing, feed, mineral processing and other industries |
Manganous sulfate monohydrate - 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 3077 9/PG 3 |
| WGK Germany | 1 |
| RTECS | OP0893500 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 28332990 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 2150 mg/kg |
Manganous sulfate monohydrate - Upstream Downstream Industry
| Raw Materials | Manganese(IV) oxide Sulfuric acid Pyrite Manganese |
| Downstream Products | Manganous borate Manganese(II) carbonate 2-Ethylhexanoate manganese Ammonia Mancozeb |
Manganous sulfate monohydrate - Reference
| Reference Show more | 1. Jiang Qingling, Cong Meinan, Chen Haisheng, et al. Optimization of Culture Medium and Culture Conditions of Lactobacillus delericus Bulgarian Subspecies [J]. Journal of Jimei University: Natural Science Edition, 2016, 21(006):401-409. |
Manganous sulfate monohydrate - Nature
Open Data Verified Data
light red crystals. Monoclinic system. d 2. 95. Soluble in 1 cold water, 0.6 boiling water, insoluble in ethanol. When heated to 400~450 °c, the water is lost and completely decomposed at about 1150 °c. By high heat decomposition, release of toxic smoke.
Last Update：2025-06-10 22:55:16
Manganous sulfate monohydrate - Preparation Method
Open Data Verified Data
water is added to manganese dioxide, and sulfur dioxide is added under stirring until the black precipitate is changed to light gray. Manganese dioxide is added until the black precipitate no longer disappears, the filtrate was acidified with sulfuric acid. After being evaporated to dryness on a water bath, it was burned at 450 ° C. Until sulfur dioxide was no longer released, and manganese sulfate was obtained.
Last Update：2025-06-10 22:55:16
Manganous sulfate monohydrate - Introduction
Analysis of ammonium, silver, tellurium, chloride, bromide and periodate, preparation of iron body, haploid breeding preparation of various media, nitric acid test powder method for the determination of soil and plant nitrate nitrogen.
Last Update：2022-10-16 17:11:22
Manganous sulfate monohydrate - Application
Open Data Verified Data
Analytical reagents, microanalysis of ammonium, silver, tellurium, bromide, chlorate, bromate, periodate. It is also used as mordant, paint desiccant and manganese fortifier.
Last Update：2025-08-19 16:24:40
Manganous sulfate monohydrate - Safety
Open Data Verified Data
mice were injected intraperitoneally with ldso: 64mg/kg. Inhalation, ingestion or absorption through the skin is harmful to the body, with stimulating effect. Long-term inhalation of this product dust, can cause chronic manganese poisoning, stored in a cool, ventilated warehouse. Keep away from fire and heat source. Keep the container sealed. Moisture-proof, sunscreen. Should be stored separately from acids, edible chemical raw materials, etc.
Last Update：2025-06-10 22:55:16
Manganous sulfate monohydrate - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| solubility in water (g/100ml) | dissolution grams per 100ml of water at different temperatures (℃): 52.9g/0 ℃;59.7g/10 ℃;62.9g/20 ℃;62.9g/30 ℃;60g/40 ℃ 53.6g/60 ℃;45.6g/80 ℃;40.9g/90 ℃;35.3g/100 ℃ |
| toxicity | see metal manganese. |
| use | used as raw material for electrolytic manganese and other manganese salts, used for papermaking, ceramics, printing and dyeing, ore flotation, etc. used as microanalysis reagent, mordant and paint desiccant mainly used as feed additive, catalyst for plant synthesis of chlorophyll manganese sulfate is a nutrient fortifier for feed. is one of the important trace element fertilizers, which can be used as base fertilizer, seed soaking, seed dressing, top dressing and foliar spraying, which can promote crop growth and increase yield. In the animal husbandry and feed industry, it is used as a feed additive to make livestock and poultry develop well and have a fattening effect. It is also the raw material for processing paint and ink drier manganese naphthalate solution. Used as a catalyst when synthesizing fatty acids. In addition, it can also be used as raw materials for the production of papermaking, ceramics, printing and dyeing, ore flotation, electrolytic manganese and other manganese salts. Nutritional supplement (manganese fortifier). Manganese sulfate is a food fortifier that is allowed to be used. Our country stipulates that it can be used for infant food, and the usage amount is 1.32~5.26 mg/kg; 0.92~3.7 mg/kg in dairy products; 0.5~1.0 mg/kg in drinking liquid. Used as analytical reagents, mordants, additives, pharmaceutical excipients, etc. for fertilizer, medicine, paint, papermaking, ceramics, printing and dyeing, feed, mineral processing and other industries drip analysis of ammonium, silver, tellurium, chloride, bromide and periodate, preparation of iron bodies, haploid breeding preparation of various media, nitric acid test powder method for the determination of soil and plant nitrate nitrogen. |
| production method | manganese oxide is obtained by mixing pyrolusite with MnO2 content above 65% and white coal powder at a ratio of 100:20 (mass ratio) in a reduction roasting furnace at 700~850 ℃. The cooled MnO is acidolysis in 15% sulfuric acid, PH>5.2 is controlled, the acidolysis solution is adjusted to pH = 3~4, metered barium sulfide is added to remove heavy metals, hydroxide precipitate and slag are removed by pressure filtration, the filtrate is allowed to stand for 48 hours and then filtered again to remove impurities. The filtrate is finally concentrated, crystallized, separated, and dried by hot air to obtain manganese sulfate. 2MnO2 + C → 2MnO + CO2MnO + H2SO4 → MnSO4 + H2O Pyrolusite and pulverized coal are mixed in a certain proportion, reduced and roasted to obtain manganese oxide, and then acidolysis with sulfuric acid to remove impurities and purify. The waste liquid in the production of hydroquinone contains manganese sulfate and ammonium sulfate, and the waste liquid is obtained by deamination after being neutralized and removed from lime milk. the pyrolusite method mixes the soft manganese ore powder and the pulverized coal at an ingredient ratio of 100:20 (mass ratio), and is reduced and roasted in a roaster at 800 ℃ to generate manganese oxide. Cool to room temperature under isolated air conditions, acidolysis in 15% ~ 20% dilute sulfuric acid, use manganese dioxide powder as oxidant to make Fe2 → Fe3, control Ph ≤ 5.2, press filtration to remove Fe3, aluminum and other acid insoluble substances, and then settle to further remove calcium impurities. Manganese sulfate fine filtrate is evaporated, concentrated, crystallized, centrifuged and dried by hot air to obtain finished manganese sulfate products. Pyrolusite and pyrite are dried by MnO2 + C → MnO + COMnO2 + CO → MnO + CO2MnO + H2SO4 → MnSO4 + H2O roasting method, respectively pulverizing, then mixing ingredients, roasting at 500-600 ℃ for 0.5-1.0h, and clinker is leached with dilute manganese sulfate solution, after separating the wet slag, fine filtration is carried out, and then evaporated, concentrated, and centrifuged. The wet material is dried and crushed to obtain manganese sulfate products. Its 8MnO2+4Fe2S2+11O2 → 8MnSO4+2Fe2O3 reduction leaching method mixes pyrolusite, sulfuric acid and a certain amount of reducing agent for reaction, ripens, leach with water, filter and remove slag to obtain manganese sulfate solution, and then concentrate, crystallize, separate and dry to obtain manganese sulfate products. The reducing agent used in the reaction can be selected according to the conditions, such as ferrous sulfate, pyrite, iron filings, starch, sawdust, etc. At present, ferrous sulfate and pyrite are widely used. Pyrite is used as reducing agent, and manganese sulfate solution is directly prepared by leaching with water, and its FeS2 + H2SO4 + 6H2O → FeSO4 +2H2SO4+5H2 ↑ MnO2 + H2SO3 → MnSO4 + H2OH2 + H2SO4 + MnSO2 → MnSO4 +2H2O2FeSO4+2H2SO4 + MnO2 → MnSO4 + Fe2(SO4)3 + 2H2O rhodochrosite is crushed and leached with sulfuric acid, and the generated manganese sulfate solution is filtered to remove slag, the filtrate is heated and concentrated, cooled and crystallized, centrifuged and dried to produce finished manganese sulfate. When leaching rhodochrosite with sulfuric acid, 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, or the waste electrolyte of electrolytic manganese dioxide and sulfuric acid should be used to leach minerals, and then neutralize and filter to remove iron to obtain manganese sulfate solution. Its MnCO3 H2SO4 → MnSO4 H2O CO2 ↑ hydroquinone by-product recovery method produces a large amount of waste liquid containing manganese sulfate and ammonium sulfate when aniline and manganese dioxide are oxidized to produce hydroquinone, which is usually neutralized by lime milk to remove impurities, and then heated to deaminate to obtain manganese sulfate solution, and then concentrated, crystallized, dehydrated, separated, and dried to obtain manganese sulfate products. Its 2C6H5NH2+4MnO2+5H2SO4 → 2(OC6H4O)+4MnSO4 +(NH4)2SO4+4H2O(NH4)2SO4 + Ca(OH)2 → CaSO4 ↓ +2NH3 ↑ 2H2O pyrolusite with more than 65% MnO2 content and white coal powder are mixed in a ratio of 100:20 (mass ratio), and manganese oxide is roasted in a reduction roaster at 700-850 ℃. The cooled MnO is acidolysis in 15% sulfuric acid, the PH is controlled to <5.2, the acidolysis solution is adjusted to PH = 3-4, metered barium sulfide is added to remove heavy metals, hydroxide precipitate and slag are removed by pressure filtration, the filtrate is allowed to stand for 48 hours and then filtered again to remove impurities. The filtrate is finally concentrated, crystallized, separated, and dried by hot air to obtain manganese sulfate. |
| category | pesticide |
| toxicity classification | poisoning |
| flammability hazard characteristics | combustible, manganese is emitted from the fire site, and sulfur oxides are pungent to stimulate smoke |
| storage and transportation characteristics | warehouse low temperature, ventilation, drying |
| fire extinguishing agent | water, carbon dioxide, dry powder, sand |
| occupational standard | TWA 0.2 mg (manganese)/m3 |
Last Update：2024-04-10 22:29:15
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View History
Manganous sulfate monohydrate
rodol42
144584-29-2
4-Methylphenol
Alliin
534-22-5
70865-20-2
N-FLUOROBENZENESULFONIMIDE
Chlormadinone acetate
rodol42
144584-29-2
4-Methylphenol
Alliin
534-22-5
70865-20-2
N-FLUOROBENZENESULFONIMIDE
Chlormadinone acetate
Raw Materials for Manganous sulfate monohydrate
Downstream Products for Manganous sulfate monohydrate