BARIUM CHROMATE AR
BARIUM CHROMATE AR, BARIUM CHROMATE
Barium, as a metal or when alloyed with aluminium, is used to remove unwanted gases (gettering) from vacuum tubes, such as TV picture tubes.
The barium mineral, benitoite (barium titanium silicate), occurs as a very rare blue fluorescent gemstone, and is the official state gem of California.
Barium is a soft, silvery-white metal, with a slight golden shade when ultrapure.[5]: 2 The silvery-white color of barium metal rapidly vanishes upon oxidation in air yielding a dark gray layer containing the oxide.
|
Physical state at 20 °C :
|
Solid. |
| Odour threshold : | No data available. |
| pH value : | Not applicable. |
| Melting point [°C] : | 210 °C |
| Decomposition point [°C] : | N/A |
| Critical temperature [°C] : | N/A |
| Auto-ignition temperature [°C] : | N/A |
| Flammability (solid, gas) : | N/A |
| Flash point [°C] : | N/A |
| Boiling point [°C] : | N/A |
| Initial boiling point [°C] : | N/A |
| Final boiling point [°C] : | N/A |
| Evaporation rate : | N/A |
| Vapour pressure [20°C] : | N/A |
| Vapour pressure mm/Hg : | N/A |
| Vapour density : | N/A |
| Density [g/cm3] : | 4.498 |
| Relative density, gas (air=1) : | N/A |
| Relative density, liquid (water=1) : | N/A |
| Solubility in water [% weight] : | Slightly soluble |
| Solubility in water : | N/A |
| Log Pow octanol / water at 20°C : | No data available. |
| Solubility : | N/A |
| Viscosity at 40°C [mm2/s] : | N/A |
| Explosive properties : | N/A |
| Explosion limits - upper [%] : | N/A |
| Explosion limits - lower [%] : | N/A |
| Oxidising properties : | No data available. |
Barium is a soft, silvery-white metal, with a slight golden shade when ultrapure.[5]: 2 The silvery-white color of barium metal rapidly vanishes upon oxidation in air yielding a dark gray layer containing the oxide.