Physical and chemical properties of barium sulfide

Density 4.25

Melting point 1200ºC

Molecular formula BaS

Molecular weight 169.392

Precise mass 169.877319

PSA 32.09000

LogP 0.64820

Appearance Colorless crystal, or white to gray-brown powder

Vapor pressure 12600mmHg at 25°C

Storage conditions

Store in a cool, dry, well-ventilated room. Keep away from fire and heat sources. The package must be sealed and must not be exposed to moisture. It should be stored separately from oxidizing agents, acids and edible chemicals, and should not be mixed. It should not be stored for a long time to avoid deterioration. Equipped with corresponding varieties and quantities of fire-fighting equipment. The storage area should be equipped with suitable materials to shelter leaks.

Stability

1. Oxidized to yellow or even orange in dry air. Decompose in wet air and produce H2S, and decompose faster in acid. Solubility in 100g of water is 9.0g (25℃) and 60g (100℃).

2. Stability Stable

3. Prohibited substances Strong oxidizer, water vapor, acid

4. Avoid contact conditions Humid air

5. Polymerization hazard No polymerization

Water solubility: 2.88g/0℃;4.89g/10℃;7.86g/20℃;10.4g/30℃;14.9g/40℃ 27.7g/60℃;49.9g/80℃;67.3g/90℃;60.3g/100℃

Molecular structure

1、Molar refractive index：None available

2、Molar volume (cm3/mol): not available

3、Isotropic specific volume (90.2K): not available

4、Surface tension (dyne/cm): not available

5、Dielectric constant: not available

6、Polarization rate (10-24cm3): not available

7、Single isotope mass: 169.877312 Da

8、Nominal mass: 170 Da

9、Average mass: 169.392 Da

Calculated chemistry

1、Reference value for hydrophobic parameter calculation (XlogP).

2、Number of hydrogen bond donor：0

3、Number of hydrogen bond acceptors: 1

4、Number of rotatable chemical bonds: 0

5、Number of reciprocal isomers.

6、Topological molecular polar surface area (TPSA): 0

7、Number of heavy atoms: 2

8、Surface charge: 0

9、Complexity: 0

10、Number of isotope atoms: 0

11、Number of determined atomic structure centers: 0

12、Number of uncertain atomic structure centers: 0

13、Determined number of chemical bonding structure centers: 0

14、Number of indeterminate chemical bonding structure centers: 0

15、Number of covalent bonding units: 2

More

1.Properties: white or off-white crystalline powder, industrial product is light brown black powder, also in block form, easy to absorb moisture hydrolysis.

2. Melting point (℃): 1200

3. Relative density (water=1): 4.25 (15℃)

4. Solubility: soluble in water.

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