| Identification | More | [Name]
Manganese(II) sulfate hydrate | [CAS]
10034-96-5 | [Synonyms]
MANGANESE (II) SULFATE
MANGANESE(II) SULFATE-1-HYDRATE
MANGANESE(II) SULFATE HYDRATE
MANGANESE(II) SULFATE MONOHYDRATE
Manganese (II) sulfate monohydrated
MANGANESE(II) SULFATE POLYHYDRATE
MANGANESE (II) SULPHATE 1H20
MANGANESE(II) SULPHATE 1-HYDRATE
MANGANESE(II) SULPHATE MONOHYDRATE
MANGANESE SULFATE
MANGANESE SULFATE, MONOHYDRATE
MANGANESE SULPHATE, MONOHYDRATE
MANGANOUS SULFATE
MANGANOUS SULFATE, MONOHYDRATE
MANGANOUS SULPHATE 1-HYDRATE
MANGANOUS SULPHATE H2O
Sulfuric acid manganese(2+) salt (1:1)
WINKLER'S SOLUTION NO 1
WINKLER'S SOLUTION NO 2
manganese(2+)sulfatemonohydrate | [EINECS(EC#)]
232-089-9 | [Molecular Formula]
H2MnO5S | [MDL Number]
MFCD00149159 | [Molecular Weight]
169.02 | [MOL File]
10034-96-5.mol |
| Chemical Properties | Back Directory | [Appearance]
Pink crystalline powder | [Melting point ]
700 °C | [Boiling point ]
850 °C | [bulk density]
1000-1200kg/m3 | [density ]
2.95 | [refractive index ]
1.508-1.522 | [storage temp. ]
Store at RT. | [solubility ]
5-10 g/100 mL at 21°C | [form ]
Solid | [color ]
Pink | [Odor]
Odorless | [PH]
3.0-3.5 (50g/l, H2O, 20℃) | [Water Solubility ]
5-10 g/100 mL at 21 ºC | [Sensitive ]
Hygroscopic | [Merck ]
14,5739 | [Exposure limits]
ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3
OSHA: Ceiling 5 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3 | [InChI]
1S/Mn.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2 | [InChIKey]
ISPYRSDWRDQNSW-UHFFFAOYSA-L | [SMILES]
O.[Mn++].[O-]S([O-])(=O)=O | [LogP]
-1.031 (est) | [Uses]
Manganese Sulfate is a source of manganese that functions as a nutrient and dietary supplement. It exists as a powder which is readily soluble in water. | [CAS DataBase Reference]
10034-96-5(CAS DataBase Reference) | [EPA Substance Registry System]
10034-96-5(EPA Substance) |
| Safety Data | Back Directory | [Symbol(GHS) ]
  
GHS05,GHS08,GHS09 | [Signal word ]
Danger | [Hazard statements ]
H318-H373-H411 | [Precautionary statements ]
P260-P273-P280-P305+P351+P338-P314-P391 | [Hazard Codes ]
Xn,N | [Risk Statements ]
R48/20/22:Harmful: danger of serious damage to health by prolonged exposure through inhalation and if swallowed .
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S22:Do not breathe dust .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 3077 9/PG 3
| [WGK Germany ]
1
| [RTECS ]
OP0893500
| [F ]
3 | [TSCA ]
Yes | [HazardClass ]
9 | [PackingGroup ]
III | [HS Code ]
28332990 | [Storage Class]
13 - Non Combustible Solids | [Hazard Classifications]
Aquatic Chronic 2
Eye Dam. 1
STOT RE 2 Inhalation | [Toxicity]
LD50 orally in Rabbit: 2150 mg/kg |
| Hazard Information | Back Directory | [General Description]
Odorless pale red slightly efflorescent crystals or light pink powder. pH (5% solution) 3.7. | [Reactivity Profile]
MANGANESE(II) SULFATE MONOHYDRATE(10034-96-5) is incompatible with aluminum and magnesium. | [Air & Water Reactions]
Water soluble. Hygroscopic. | [Fire Hazard]
Flash point data for this chemical are not available; however, MANGANESE(II) SULFATE MONOHYDRATE is probably combustible. | [Chemical Properties]
Pale pink crystalline powder, slightly hygroscopic | [Electrical Conductivity ]
| Concentration |
0.50% |
1% |
2% |
5% |
10% |
15% |
20% |
25% |
30% |
40% |
50% |
| mS/cm |
6.2 |
10.6 |
21.6 |
34.5 |
43.7 |
47.6 |
– |
– |
– |
– |
– |
| [Definition]
ChEBI: Manganese(II) sulfate monohydrate is a hydrate that is the monohydrate form of manganese(II) sulfate. It has a role as a nutraceutical. It is a hydrate, a manganese molecular entity and a metal sulfate. It contains a manganese(II) sulfate. | [Biochem/physiol Actions]
Manganese sulfate has various industrial applications such as dyeing, porcelain glazing, and the manufacture of fertilizers and boiling oils. MnSO4 is used as a source of manganese ion in biological research, such as in culturing of Bacillus licheniformis and the induction of chromosomal abnormalities in plants. MnSO4 has been utilized to investigate the enzyme dependent glycosylation of endogenous glycoproteins in human skeletal muscle. | [Purification Methods]
Crystallise it from water (0.9mL/g) at 54-55o by evaporating about two-thirds of the water. It dehydrates above 400o. | [Toxics Screening Level]
The molecular weight adjusted initial threshold screening level (ITSL) of MnSMH is 0.9 μg/m3, with an annual average. |
| Questions and Answers (Q&A) | Back Directory | [Uses]
Manganese(II) sulfate is used to produce manganese by an electrolytic process. The compound is used for dyeing textiles; for producing red glazes on porcelain; in varnish driers; in fertilizers; and in animal feeds to provide manganese as an essential trace element.
| [Preparation]
Manganese(II) sulfate is prepared by prolonged heating of any manganese salt with concentrated sulfuric acid. The compound is produced commercially from pyrolusite (MnO2) or rhodochrosite (MnCO3). Either mineral is dissolved in sulfuric acid and the solution evaporated:
MnO2 + H2SO4 → MnSO4 + H2O + ½ O2
Alternatively, manganese dioxide is heated strongly with dehydrated iron(II) sulfate:
2MnO2 + 2FeSO4 → 2MnSO4 + Fe2O3 + ½ O2
Manganese(II) sulfate, prepared by methods involving evaporation of manganese salt with sulfuric acid, is the tetrahydrate, MnSO4•4H2O. The tetrahydrate on gentle heating produces monohydrate, MnSO4•H2O.
Also, manganese(II) sulfate is a by-product in the manufacture of hydroquinone. The process involves reaction of aniline with manganese dioxide in sulfuric acid, followed by the removal of quinone by steam distillation under vacuum.
2C6H5NH2 (aniline) + 5H2SO4 + 4MnO2 → 2C6H4O2 + 4MnSO4 + 2C6H4O2 + 4MnSO4(quinone)
The unreacted acid is neutralized by lime, treated with water, and the solution filtered to separate any excess MnO2 and insoluble residues. Evaporation of the filtrate yields a crude product containing about 80% MnSO4 and 15% (NH4)2SO4.
Manganese(II) sulfate also may be produced by the action of sulfur dioxide with manganese dioxide:
MnO2 + SO2 → MnSO4
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