MANGANESE(II) CHLORIDE 4H2O
Manganese(II) chloride tetrahydrate
CAS: 13446-34-9
Molecular Formula: Cl2H8MnO4
MANGANESE(II) CHLORIDE 4H2O - Names and Identifiers
MANGANESE(II) CHLORIDE 4H2O - Physico-chemical Properties
| Molecular Formula | Cl2H8MnO4 |
| Molar Mass | 197.91 |
| Density | 2,01 g/cm3 |
| Melting Point | 58°C(lit.) |
| Boling Point | 1190 °C |
| Water Solubility | 1980 g/L (20 ºC) |
| Solubility | Soluble in water (99 g/l at 20 °C), alcohol, and ethanol. Insoluble in ether. |
| Appearance | Crystallization |
| Specific Gravity | 2.01 |
| Color | Red |
| 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 |
| Maximum wavelength(λmax) | ['λ: 260 nm Amax: 0.01', , 'λ: 280 nm Amax: 0.01'] |
| Merck | 14,5728 |
| PH | 3.5-6 (50g/l, H2O, 25℃) |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable. Incompatible with moisture, strong acids, sodium, potassium, zinc. |
| Sensitive | Hygroscopic |
| MDL | MFCD00149792 |
| Physical and Chemical Properties | Trait rose-colored monoclinic crystals. melting point 58 ℃ relative density 2.01 solubility soluble in water, soluble in alcohol, insoluble in ether. |
| Use | Used as a catalyst for the chlorination of organic compounds, paint drying agent and gasoline anti-seismic agent of raw materials. It is used in the manufacture of feed auxiliaries, Analytical reagents, dyes and pigments, aluminum alloy smelting, Brown black brick and tile production, and pharmaceutical and dry battery manufacturing. In agriculture, it is also used as a trace element fertilizer, which can be used as acid soil base fertilizer, topdressing or root topdressing. It is mainly used as a catalyst for the chlorination of organic compounds, a raw material for gasoline anti-seismic agent and a paint desiccant, and also used in fertilizers, aluminum alloy smelting, pharmaceuticals and dry batteries, etc. |
MANGANESE(II) CHLORIDE 4H2O - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R52 - Harmful to aquatic organisms R48/22 - Harmful danger of serious damage to health by prolonged exposure if swallowed. |
| Safety Description | S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 1 |
| RTECS | OO9650000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 2827 39 85 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | LD 50 in rats (mmole/kg): 7.5 orally; 0.70 i.p. (Holbrook) |
MANGANESE(II) CHLORIDE 4H2O - Upstream Downstream Industry
| Raw Materials | Manganese(II) carbonate Hydrochloric acid |
MANGANESE(II) CHLORIDE 4H2O - Reference
| Reference Show more | 1. [IF=3.361] Jin Zhang et al."Time-dependent and Pb-dependent antagonism and synergism towards Vibrio qinghaiensis sp.-Q67 within heavy metal mixtures."Rsc Adv. 2018 Jul;8(46):26089-26098 2. [IF=4.155] Hong-shuang Liu et al."Sagittaria sagittifolia polysaccharide protects against six-heavy-metal-induced hepatic injury associated with the activation of Nrf2 pathway to regulate oxidative stress and apoptosis."J Inorg Biochem. 2022 Jul;232:111810 3. [IF=7.086] Xi Wang et al."Bioaccumulation of manganese and its effects on oxidative stress and immune response in juvenile groupers (Epinephelus moara ♀ × E. lanceolatus ♂)."Chemosphere. 2022 Jun;297:134235 |
MANGANESE(II) CHLORIDE 4H2O - Nature
Open Data Verified Data
light pink monoclinic translucent crystal. Deliquescence. The Crystal has two forms of a and p, a type is monoclinic columnar crystal, more stable; p type is monoclinic plate-like crystal, unstable. Melting point 58 C; d 2.01. Soluble in 0.7 water, soluble in ethanol, insoluble in ether. Water absorption, easy deliquescence. At 106 °c, one molecule of crystal water is lost, and at 200 °c, all of the crystal water is lost to form an anhydrate. When the anhydrous substance is heated in the air, HCI is released by the decomposition of water, and Mn 04 is generated.
Last Update：2025-06-10 22:55:16
MANGANESE(II) CHLORIDE 4H2O - Preparation Method
Open Data Verified Data
The crushed magnesite is reacted with excess hydrochloric acid in the reactor. After the reaction is completed, the excess hydrochloric acid is neutralized with lime to control the pH value to about 4, additional hydrogen peroxide was added to remove iron. Then, manganese sulfate is added to the solution to remove calcium, and the purified solution is evaporated, filtered, concentrated by evaporation, cooled and crystallized, and centrifuged.
Last Update：2025-06-10 22:55:16
MANGANESE(II) CHLORIDE 4H2O - Introduction
Easily soluble in water, soluble in alcohol, insoluble in ether. It has water absorption and is easy to deliquesce. It loses one molecule of crystal water at 106 ℃ and all crystal water at 198 ℃ to form anhydrous.
Last Update：2022-10-16 17:13:31
MANGANESE(II) CHLORIDE 4H2O - Application
Open Data Verified Data
analysis reagent for microanalysis of gallium and periodate. It can also be used as a catalyst for the chlorination of organic compounds, a raw material for gasoline anti-seismic agents and a drying agent for paints. It is also used in the manufacture of chemical fertilizers, feed AIDS, dyes and pigments, aluminum alloy smelting, Brown black brick and tile production, and pharmaceutical and battery industries.
Last Update：2025-08-19 16:24:40
MANGANESE(II) CHLORIDE 4H2O - Safety
Open Data Verified Data
rat oral LDs0:7.5mmol/kg; Intraperitoneal injection 0. 70mmol/kg; Subcutaneous injection of LDso in mice: 180~250mg/kg; Intravenous injection of LDso in dogs: 201. 6 mg/kg.
Last Update：2025-06-10 22:55:16
MANGANESE(II) CHLORIDE 4H2O - Reference Information
| pH indicator color change ph range | 4-6 |
| olfactory threshold (Odor Threshold) | Odorless |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | see metal manganese. |
| use | used as a catalyst for organic chlorination, a drier for paints and a raw material for gasoline anti-vibration agents. Used in the manufacture of feed aids, analytical reagents, dyes and pigments, aluminum alloy smelting, brown-black brick and tile production, and pharmaceutical and dry battery manufacturing. It is also used as trace element fertilizer in agriculture, and can be used as base fertilizer, topdressing or topdressing outside the root. used as catalyst for organic chlorination, paint desiccant used as microanalysis reagent and catalyst used as catalyst for organic chlorination, paint drier and raw material for gasoline anti-vibration agent. Used in the manufacture of feed aids, analytical reagents, dyes and pigments, aluminum alloy smelting, brown-black brick and tile production, and pharmaceutical and dry battery manufacturing. It is also used as trace element fertilizer in agriculture, and can be used as base fertilizer, topdressing or topdressing outside the root. It is mainly used as a catalyst for organic chlorination, a raw material for gasoline anti-vibration agent and a paint desiccant. It is also used for fertilizers, aluminum alloy smelting, pharmaceuticals and dry batteries. Used as an organic chlorination catalyst, paint drier and gasoline anti-vibration agent raw material. Used in the manufacture of feed aids, analytical reagents, dyes and pigments. Magnesium alloy, aluminum alloy smelting, brown-black brick and tile production, and pharmaceutical and dry battery manufacturing. It is also used as a trace element fertilizer in agriculture. Microdetermination of gallium and periodate. Chlorination catalyst. Purify natural gas. Linseed oil desiccant. |
| production method | the crushed rhodochrosite-hydrochloric acid method completely reacts with the excess hydrochloric acid in the reactor, then lime is added to neutralize the excess hydrochloric acid, Ph is controlled to be about 4, and hydrogen peroxide is added to remove iron. Then manganese sulfate is added to the solution to remove calcium, and the purified solution is evaporated, filtered, evaporated and concentrated, cooled and crystallized, and centrifuged to obtain a finished manganese chloride product. Its MnCO3 2HCI → MnCl2 H20 CO2Fe2 -e[H2O2]→ Fe3 CaC12 MnSO4 → MnC12 CaSO4 ↓ pyrolusite-hydrochloric acid method mixes pyrolusite with pulverized coal, reduces and roasts to generate manganese monoxide, or manganese ore directly reacts with hydrochloric acid, and is filtered to remove impurities, concentrated, cooled and crystallized, and centrifuged to obtain finished manganese chloride. Its MnO2 C → MnO COMnO2 CO → MnO CO2MnO 2HCl → MnCl2 H2O or MnO2 4HCl → MnC12 2H2O C12 ↑ |
| category | toxic substances |
| toxicity classification | poisoning |
| acute toxicity | oral administration-rat LD50 1484 mg/kg; Abdominal cavity-mouse LD50: 144 mg/kg |
| flammability hazard characteristics | non-combustible; toxic manganese smoke from the fire site |
| 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：2024-04-09 19:05:10
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