Manganese(II) carbonate
Manganese(II) carbonate
CAS: 598-62-9
Molecular Formula: CMnO3
Manganese(II) carbonate - Names and Identifiers
| Name | Manganese(II) carbonate |
| Synonyms | RHODOCHROSITE Manganous carbonate Manganese carbonate ManganeseCarbonateAr Manganese(Ⅱ)carbonate MANGANESE(+2)CARBONATE Manganese(II) carbonate Manganese(II) carbonate, tech. MANGANESE CARBONATE, FOR ANALYTICAL PURPOSE |
| CAS | 598-62-9 |
| EINECS | 209-942-9 |
| InChI | InChI=1/CH2O3.Mn/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 |
Manganese(II) carbonate - Physico-chemical Properties
| Molecular Formula | CMnO3 |
| Molar Mass | 114.95 |
| Density | 3.12g/mLat 25°C(lit.) |
| Melting Point | 350°C (dec.) |
| Water Solubility | Soluble in water(0.065g/L), dilute inorganic acids. Insoluble alcohol. |
| Solubility | Almost insoluble in water, slightly soluble in water containing carbon dioxide. Soluble in dilute inorganic acid, slightly soluble in ordinary organic acid, insoluble in alcohol and liquid ammonia. |
| Appearance | Pink to white-like powder |
| Specific Gravity | 3.125 |
| Color | Light brown to violet |
| 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 |
| Solubility Product Constant(Ksp) | pKsp: 10.63 |
| Merck | 14,5726 |
| Storage Condition | Room Temprature |
| Stability | Stable. Incompatible with strong acids, strong oxidizing agents. May be moisture senstive. |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00011116 |
| Physical and Chemical Properties | Characters rose-colored triangular rhomboid crystals or amorphous bright white brown powder. relative density 3.125 solubility is almost insoluble in water, slightly soluble in water containing carbon dioxide. Soluble in dilute inorganic acid, slightly soluble in common organic acids, insoluble in alcohol and liquid ammonia. |
| Use | Widely used as desulfurization catalyst, enamel pigment, manganese salt raw materials, also used in fertilizer, medicine, feed additives, electrode accessories |
Manganese(II) carbonate - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| RTECS | OM2470000 |
| TSCA | Yes |
Manganese(II) carbonate - Upstream Downstream Industry
Manganese(II) carbonate - Nature
Open Data Verified Data
rose-colored triangular rhombohedral or amorphous bright white brown powder. d 3. 125. Stable in dry air, wet easy oxidation, the formation of manganese dioxide and gradually become brown black soluble in dilute inorganic acid, slightly soluble in common organic acid, insoluble in liquid ammonia. Practically insoluble in water, but slightly soluble in CO2-containing water. Heating to 100 °c begins to decompose into carbon dioxide and manganese oxide (Mr12 ). Hydrolysis occurs when azeotropic with water.
Last Update：2024-01-02 23:10:35
Manganese(II) carbonate - Preparation Method
Open Data Verified Data
In the reactor, manganese sulfate is dissolved with water or steam, insoluble matters are removed by filtration, and purification is carried out with hydrogen sulfide to remove impurities such as heavy metals. After heating and boiling, the mixture is filtered. The obtained manganese sulfate solution and ammonium bicarbonate solution are subjected to metathesis reaction at 25~30 ℃ to generate manganese carbonate, which is then subjected to Suction filtration, washing and dehydration, drying may be performed at 80 to 90 °c. Alternatively, the soft manganese ore powder is mixed with coal powder, and the manganese sulfate solution is obtained by reduction roasting and sulfuric acid leaching. After filtration, the solution is neutralized with ammonium bicarbonate, and then vacuum filtered, dehydrated and dried.
Last Update：2022-01-01 09:02:18
Manganese(II) carbonate - Introduction
Oxidation in the air gradually pale brown. Soluble in dilute acid, insoluble in water and alcohol.
Last Update：2022-10-16 17:26:51
Manganese(II) carbonate - Use
Open Data Verified Data
The material of the telecommunication equipment component is used as a raw material for the production of ferrite. Manganese carbonate is widely used as a catalyst for desulfurization, enamel pigment, Varnish drier, manganese salt and raw material for catalyst manufacturing.
Last Update：2022-01-01 09:02:19
Manganese(II) carbonate - Safety
Open Data Verified Data
packed in polypropylene woven bags lined with three-layer polyethylene plastic bags, each with a net weight of 25kg or 50kg. Should be stored in a cool, ventilated, dry warehouse. Moisture, heat and deterioration should be prevented. Transport should be protected from rain and sun. When loading and unloading should be light to prevent packaging damage. When there is a fire, it can be suppressed by water, sand, and fire. Toxicity and protection: see manganese metal.
Last Update：2022-01-01 11:02:04
Manganese(II) carbonate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| solubility in water (g/100ml) | grams dissolved per 100ml of water: 4.877 × 10-5/20 ℃ |
| toxicity | see manganese metal. |
| Use | widely used as desulfurization catalyst, enamel pigment, manganese salt raw materials, also used in fertilizer, medicine, feed additives, electrode accessories, etc. for the preparation of manganese salt, also used as a material for telecommunication equipment components is a raw material for the production of soft magnetic ferrite for telecommunication equipment. Industrial manganese carbonate is widely used as a catalyst for desulfurization, an enamel pigment, a varnish drier, and a raw material for manufacturing other manganese salts. It is also used in medicine, mechanical parts and phosphating treatment. Agricultural use of manganese carbonate as a trace element fertilizer its content may be slightly lower. A manganese salt was prepared. Widely used as desulfurization catalyst, enamel pigment, manganese salt raw materials, also used in fertilizer, medicine, mechanical parts and phosphate treatment mainly used in the manufacture of communication equipment in the magnetic material, that is, high-performance manganese-zinc ferrite. |
| production method | The manganese metal is dissolved in nitric acid to react, and the resulting manganese nitrate solution is purified with hydrogen sulfide to remove heavy metals, after filtration, the manganese nitrate purified solution is subjected to metathesis reaction with ammonium bicarbonate to generate manganese carbonate, and the precipitate is washed, filtered, dehydrated and dried to obtain a high-purity manganese carbonate product. Its Mn 4HN03 → Mn(NO3)2 2NO2 2 h2mn (NO3)2 2NH4HCO3 → MnCO3 ↓ 2NH4NO3 CO2 · H2O double decomposition method to dissolve manganese sulfate with water or steam in the reactor, filtration to remove insoluble matter, and then purification of hydrogen sulfide to remove impurities such as heavy metals, heating boiling, while hot filtration, the preparation of pure manganese sulfate solution. And then in the reactor with ammonium bicarbonate solution at 25~30 deg C for double decomposition reaction, manganese carbonate is generated, and the precipitate after Suction filtration, washing, dehydration, hot air drying was carried out at 80~90 ℃ to prepare manganese carbonate product. Its MnSO4 2NH4HCO3 → MnCO3 ↓ (NH4)2SO4 co2↑h2o pyrolusite method of soft manganese ore powder mixed with coal powder, after reduction roasting, sulfuric acid leaching, manganese sulfate solution was obtained, after filtration, it was neutralized with ammonium bicarbonate, after vacuum filtration, dehydration and drying, manganese carbonate was obtained. Its MnO2 C → MnO COMnO2 CO → MnO CO2 ↑mno H2SO4 → MnSO4 H2OMnSO4 2NH4HCO3 → MnCO3 (NH4)2SO4 CO2 ↑h2o magnesite method to mix sulfuric acid solution and Manganite powder in a certain proportion for reaction, the generated manganese sulfate solution is purified and separated, neutralized with ammonium bicarbonate, and then washed, dehydrated and dried to obtain manganese carbonate product. Its MnCO3 H2SO4 → MnSO4 CO2 H2OMnSO4 2NH4HCO3 → MnCO3 (NH4)2SO4 CO2 δh2o manganese chloride method to prepare low heavy metal manganese carbonate from chloride, its manganese chloride source, it can be prepared by reacting concentrated hydrochloric acid with reduced roasted manganese monoxide or with magnesite, or by reacting slag or other manganese salt waste products after preparing manganese sulfate with hydrochloric acid. Under the condition of Ph ~ 5, the manganese chloride solution is added with sodium sulfide to remove heavy metal ions, and then the sedimentation agent is added to settle and filter to obtain manganese chloride purification liquid, the filtrate was neutralized by adding the calculated amount of solid ammonium bicarbonate. After filtration, washing and drying, the low heavy metal content manganese carbonate product was obtained. After neutralization, the mother liquor is ammonium chloride solution, which can be recovered by evaporation, concentration, crystallization, separation and drying. MnC12 2NH4HCO3 → MnCO3 2NH4Cl H2O CO2 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:53:21
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View History
Manganese(II) carbonate
2,6-Dihydroxypyridine-4-carboxaMide
Retapamulin Impurity 8
METHANESULFONIC ACID METHYL ESTER
2-[5-(4-FLUOROPHENYL)-1,3,4-OXADIAZOL-2-YL]PHENYL METHYL SULFIDE
magnesium DL-aspartate
N-[4-({2-[(2-isopropyl-5-methylphenoxy)acetyl]hydrazino}carbonyl)phenyl]butanamide
2-氨基-1-(2-氯苯基)乙醇
6-chloroimidazo[1,2-b]pyr...
HYDROXYPROPYLTRIMONIUM HYDROLYZED COLLAGEN
2,6-Dihydroxypyridine-4-carboxaMide
Retapamulin Impurity 8
METHANESULFONIC ACID METHYL ESTER
2-[5-(4-FLUOROPHENYL)-1,3,4-OXADIAZOL-2-YL]PHENYL METHYL SULFIDE
magnesium DL-aspartate
N-[4-({2-[(2-isopropyl-5-methylphenoxy)acetyl]hydrazino}carbonyl)phenyl]butanamide
2-氨基-1-(2-氯苯基)乙醇
6-chloroimidazo[1,2-b]pyr...
HYDROXYPROPYLTRIMONIUM HYDROLYZED COLLAGEN
Raw Materials for Manganese(II) carbonate
Downstream Products for Manganese(II) carbonate