Iron(II) disulfide (isometric)

Details:

Density 4.9~5.2g/cm3
Molecular formula S8
Molecular weight 256.52000
Accurate quality 255.77700
PSA 202.40000
LogP 5.18560
Appearance: Solid bulk
Refractive index 3.08
Storage conditions
Keep the storage container sealed and stored in a cool and dry place, ensuring good ventilation or exhaust in the workplace
Stability: If used and stored according to specifications, it will not decompose and there are no known hazardous reactions to avoid acid Has weak conductivity, insoluble in water and dilute hydrochloric acid, soluble in nitric acid and with sulfur precipitation. When burned on a fire, it produces a blue flame and emits a pungent sulfur dioxide odor. Pyrite is the most widely distributed sulfide in the earth's crust, which can form in various geological processes; Mineral deposits can be formed separately in limestone, volcanic rocks, and coal seams; It often coexists with non-ferrous metals such as copper, lead, and zinc, forming polymetallic sulfide iron deposits. During the underground mining process of pyrite, it is necessary to strengthen ventilation and dust prevention management, keep track of the concentration of harmful gases such as SO2, CO, and H2S in the mining site at all times, and pay attention to discovering pyrite blocks that are prone to spontaneous combustion fires
Molecular structure
1. Molar refractive index: 65.29
2. Molar volume (cm3/mol): 137.7
3. Isometric volume (90.2K): 444.3
4. Surface tension (dyne/cm): 108.2
5. Dielectric constant: None available
6. Polarization rate (10-24cm3): 25.88
7. Single isotope mass: 255.77656 Da
8. Nominal mass: 256 Da
9. Average mass: 256.52 Da
Computational Chemistry
1. Number of hydrogen bond donors: 0
2. Number of hydrogen bond receptors: 0
3. Number of rotatable chemical bonds: 0
4. Topological molecular polarity surface area (TPSA): 0
5. Number of heavy atoms: 3
6. Surface charge: 0
7. Complexity: 18.3
8. Number of Isotope Atoms: 0
9. Determine the number of atomic structure centers: 0
10. Number of uncertain atomic construction centers: 0
11. Determine the number of chemical bond stereocenters: 0
12. Number of uncertain chemical bond stereocenters: 0
13. Number of covalent bond units: 1
More
1. Character: Light brass or golden yellow, with green black or black stripes, metallic luster, brittle nature, and uneven fracture surface
2. Density (g/mL, 20 ℃): 4.9-5.2
3. Relative vapor density (g/mL, air=1): Undetermined
4. Melting point (º C): Undetermined
5. Boiling point (º C, atmospheric pressure): Undetermined
6. Boiling point (º C, 0.05mmHg): Undetermined
7. Refractive index (n20/D): 3.08
8. Flash point (º C): Undetermined
9. Specific rotation (º): Undetermined
10. Self ignition point or ignition temperature (º C): Not determined
11. Vapor pressure (mmHg, 2