Physical and chemical properties of yttrium oxide
Density 5.01
Boiling point 81-83ºC
Melting point 2410ºC
Molecular formula O3Y2
Molecular weight 225.81000
Flash point 12 °C
Exact mass 225.79600
PSA 43.37000
Appearance white powder
Storage conditions
Keep receptacle tightly closed, store in a cool, dry place, and ensure good ventilation or exhaust in the workplace.
Packed in double-layer PVC bags, each bag has a net weight of 5kg or 10, sealed with an iron drum, and each drum has a net weight of 25kg or 50kg.
stability
If used and stored according to the specifications, it will not decompose, there is no known dangerous reaction, avoid air, acid. Insoluble in water and alkali, soluble in acid. It is easy to absorb carbon dioxide and water when exposed to the air. Easy to absorb CO2 in the air, soluble in dilute acid.
Water Solubility Insoluble
Molecular Structure
1. Molar refractive index: no available
2. Molar volume (cm3/mol): no available
3. Isotonic specific volume (90.2K): no available
4. Surface tension (dyne/cm): no available
5. Dielectric constant: no available
6. Polarizability (10-24cm3): no available
7. Monoisotope mass: 225.796442 Da
8. Nominal mass: 226 Da
9. Average mass: 225.8099 Da
computational chemistry
1. Hydrophobic parameter calculation reference value (XlogP):
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 3
4. Number of rotatable chemical bonds: 0
5. Number of tautomers:
6. Topological molecular polar surface area (TPSA): 43.4
7. Number of heavy atoms: 5
8. Surface charge: 0
9. Complexity: 34.2
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of stereocenters of chemical bonds: 0
14. Uncertain number of chemical bond stereocenters: 0
15. Number of covalent bond units: 1
More
1. Properties: white or light brown powder, body-centered cubic, a=10.605A (1A=0.1nm, the same below).
2. Density (g/mL, 25/4°C): 5.03
3. Relative vapor density (g/mL, air=1): not determined
4. Melting point (°C): 2439
5. Boiling point (ºC, normal pressure): 4300
6. Boiling point (ºC, 5.2kPa): not determined
7. Refractive index: not determined
8. Flash point (°C): 12
9. Specific rotation (º): not determined
10. Autoignition point or ignition temperature (ºC): not determined
11. Vapor pressure (kPa, 25ºC): not determined
12. Saturated vapor pressure (kPa, 60ºC): not determined
13. Heat of combustion (KJ/mol): not determined
14. Critical temperature (ºC): not determined
15. Critical pressure (KPa): not determined
16. Logarithmic value of the oil-water (octanol/water) partition coefficient: Not determined
17. Explosive upper limit (%, V/V): Undetermined
18. Lower explosion limit (%, V/V): not determined
19. Solubility: Soluble in dilute acid, almost insoluble in water.
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