Barium manganate
- CAS NO.：7787-35-1
- Empirical Formula: BaH4MnO4
- Molecular Weight: 260.29
- MDL number: MFCD00011514
- EINECS: 232-109-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:17:48
What is Barium manganate?
Chemical properties
blue to dark blue-black fine crystalline powder
The Uses of Barium manganate
As pigment in fresco painting instead of Scheele's green because not so poisonous as latter. As mild oxidizing agent in organic synthesis.
The Uses of Barium manganate
Useful for the selective oxidation of diols.
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.]
Properties of Barium manganate
| 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) |
Safety information for Barium manganate
| Signal word | Danger |
| Pictogram(s) |
 Flame Over Circle Oxidizers GHS03  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H272:Oxidising liquids;Oxidising solids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for Barium manganate
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