Description References
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Barium manganate

Description References
Product Name
Barium manganate
CAS No.
7787-35-1
Chemical Name
Barium manganate
Synonyms
BARIUM MANGANATE;Bariummanganate,90%;BARIUM MANGANATE(VI);dioxido(dioxo)manganese;Bariummanganate,tech.90%;Barium manganate(VI),95%;Manganic acid barium salt;7787-35-1 Barium manganate;Bariummanganategraygreenxtl;BARIUM MANGANATE: TECH., 90%
CBNumber
CB3347908
Molecular Formula
BaH4MnO4
Formula Weight
260.29
MOL File
7787-35-1.mol
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Barium manganate Property

Density 
4.85 g/mL at 25 °C (lit.)
form 
Fine Crystalline Powder
Specific Gravity
4.85
color 
Blue to dark blue-black
Water Solubility 
Slightly soluble in water
Sensitive 
Moisture Sensitive
Merck 
14,981
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
EPA Substance Registry System
Manganic acid (H2MnO4), barium salt (1:1) (7787-35-1)
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Safety

Hazard Codes 
Xn,O
Risk Statements 
20/22-8
Safety Statements 
28-28A
RIDADR 
UN 1479 5.1/PG 2
WGK Germany 
1
21
TSCA 
Yes
HazardClass 
5.1
PackingGroup 
III
HS Code 
28416900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H272May intensify fire; oxidizer

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
210196
Product name
Barium manganate
Purity
technical grade, 90%
Packaging
5g
Price
$49.2
Updated
2024/03/01
Sigma-Aldrich
Product number
210196
Product name
Barium manganate
Purity
technical grade, 90%
Packaging
25g
Price
$130
Updated
2023/06/20
Alfa Aesar
Product number
L13172
Product name
Barium manganate, tech. 90%
Packaging
5g
Price
$27.65
Updated
2024/03/01
Alfa Aesar
Product number
L13172
Product name
Barium manganate, tech. 90%
Packaging
25g
Price
$79.65
Updated
2024/03/01
Strem Chemicals
Product number
56-7075
Product name
Barium manganate, 90%
Packaging
10g
Price
$86
Updated
2024/03/01
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Barium manganate Chemical Properties,Usage,Production

Description

Barium manganate (chemical formula BaMnO4) is a type of manganates in which the manganese is in a +6 oxidation state. It is obtained by heating manganese dioxide with barium carbonate or nitrate, or by precipitating potassium manganate with barium chloride.1 Barium manganate gives a green pigment, which was used to make manganese blue. Barium manganate can be used in the oxidation of a variety of functional groups efficiently and selectively: alcohols to carbonyls, alcohols to aldehydes, diols to lactones, thiols to disulfides, aromatic amines to azo-compounds, hydroquinone to p-benzoquinone, benzylamine to benzaldehyde, etc. 2,3

References

  1. N. Eastaugh, V. Walsh, T. Chaplin, R. Siddall, Pigment Compendium, 2008, ISBN: 978-0-7506-8980-9
  2. https://en.wikipedia.org/wiki/Barium_manganate
  3. http://reag.paperplane.io/00000118.htm

Chemical Properties

blue to dark blue-black fine crystalline powder

Uses

Useful for the selective oxidation of diols.

Uses

As pigment in fresco painting instead of Scheele's green because not so poisonous as latter. As mild oxidizing agent in organic synthesis.

Purification Methods

Wash the salt with conductivity H2O by decantation until the supernatant gives a faint test for Ba2+ . Remove excess H2O in a vacuum (IMPORTANT), then heat at 100o and the last traces of H2O are removed in a vacuum desiccator over P2O5. Store it over KOH. It disproportionates in hot H2O or dilute acid into Ba(MnO2)2 and MnO2, and is a mild oxidant. [Schlezinger & Siems J Am Chem Soc 46 1965 1924, Nyholm & Woolliams Inorg Synth XI 56 1968.]

Barium manganate Preparation Products And Raw materials

Raw materials

Preparation Products

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Barium manganate Suppliers

SIGMA-RBI
Tel
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Fax
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Country
Switzerland
ProdList
6896
Advantage
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7787-35-1, Barium manganateRelated Search:


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