10034-96-5

Basic information

• Product Name: Manganese(II) sulfate monohydrate
• Synonyms: Manganese(II) sulfate monohydrate, extra pure, USP, BP;Manganese(II) sulfate monohydrate, reagent grade, ACS;Manganese Sulfate (1 g) (AS);Manganese Sulfate ((AS);Manganese(II) Sulphate Hydrate 99.9%;EMPROVE(R) Manganese(II) Sulfate, Monohydrate, Spray Dried, USP, Ph Eur, FCC;Manganous Sulfate, Monohydrate, Reagent, ACS;Manganese(II) sulfate Monohydrate, 99+%, extra pure
• CAS NO: 10034-96-5
• Molecular Formula: H2MnO5S
• Molecular Weight: 169.02
• EINECS: 232-089-9
• Product Categories: Manganese Salts;Materials Science;Metal and Ceramic Science;Salts;food additive;Catalysis and Inorganic Chemistry;Chemical Synthesis;Manganese;Cell Culture;Miscellaneous Reagents and Supplements;Reagents and Supplements;Analytical Reagents for General Use;M-N, Puriss p.a. ACS;Puriss p.a. ACS;ACS GradeSynthetic Reagents;Essential Chemicals;Inorganic Salts;Others;Routine Reagents
• Mol File: 10034-96-5.mol

Chemical Properties

• Melting Point: 700 °C
• Boiling Point: 850 °C
• Appearance: Pink/Solid
• Density: 2.95
• Vapor Pressure: 3.35E-05mmHg at 25°C
• Storage Temp.: Store at RT.
• Solubility: 5-10 g/100 mL at 21°C
• Water Solubility: 5-10 g/100 mL at 21 ºC
• Sensitive: Hygroscopic
• Merck: 14,5739
• CAS DataBase Reference: Manganese(II) sulfate monohydrate(CAS DataBase Reference)
• NIST Chemistry Reference: Manganese(II) sulfate monohydrate(10034-96-5)
• EPA Substance Registry System: Manganese(II) sulfate monohydrate(10034-96-5)

Safety Data

• Hazard Codes: Xn,N
• Statements: 48/20/22-51/53
• Safety Statements: 22-61
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 1
• RTECS: OP0893500
• F: 3
• TSCA: Yes
• HazardClass: 9
• PackingGroup: III
• Hazardous Substances Data: 10034-96-5(Hazardous Substances Data)

Usage

Air & Water Reactions

Water soluble. Hygroscopic.

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 + ? O2 Alternatively, manganese dioxide is heated strongly with dehydrated iron(II) sulfate: 2MnO2 + 2FeSO4 → 2MnSO4 + Fe2O3 + ? 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

Fire Hazard

Flash point data for Manganese(II) sulfate hydrate are not available; however, Manganese(II) sulfate hydrate is probably combustible.

Purification Methods

Crystallise it from water (0.9mL/g) at 54-55o by evaporating about two-thirds of the water. It dehydrates above 400o.

Reactivity Profile

Manganese(II) sulfate hydrate is incompatible with aluminum and magnesium.

Chemical Properties

Pale pink crystalline powder, slightly hygroscopic

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.

Uses

Manganese sulfate monohydrate 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.

General Description

Odorless pale red slightly efflorescent crystals or light pink powder. pH (5% solution) 3.7.

InChI:InChI=1/Mn.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2

Upstream product

• 1313-13-9 Manganese dioxide 
• 123-31-9 Hydroquinone 
• 1344-43-0 MANGANESE (II) OXIDE 
• 7782-63-0 Ferrous sulfate heptahydrate 

Downstream Products

• 1849-52-1 3-METHOXYISONICOTINALDEHYDE 
• 8018-01-7 Mancozeb 
• 598-62-9 Manganese carbonate 
• 39021-62-0 1-METHYL-1H-IMIDAZOLE-5-CARBOXALDEHYDE 
• 18718-07-5 Manganous dihydrogen phosphate 
• 15956-58-8 MANGANESE OCTOATE