Room temperature closed and protected from light, ventilated and dry place. Strictly prevent toxic pollution, rain and moisture in storage and transportation.

1. Light yellow powder, easy to deliquescence in humid air, turn into brown solution. Decomposes at 480 °C to generate iron oxide and sulfur trioxide. There are many hydrates, the common ones are nonahydrate Fe2(SO4)3·9H2O, molecular weight 562.01. It is yellow in color and has a density of 2.1 g/cm3. It has strong oxidation in acidic solution and can dissolve iron, copper, etc.

2. The staff should do a good job of protection, if accidentally touching the skin and eyes, should immediately rinse with running water. The working environment should have good ventilation conditions. Store in an airtight container in a cool, ventilated place. It has strong hygroscopicity and can be dissolved in water, but dissolves slowly and hydrolysis.

1. Molar refractive index: none available

2. Molar volume (cm³/mol): None available

3. Isotonic specific volume (90.2K): none available

4. Surface tension (dyne/cm): none available

5. Dielectric constant: none available

6. Polarizability (10^-24cm³): None available

7. Single isotopic mass: 399: 725069 Da

8. Nominal mass: 400 Da

9. Average mass: 399.8778 Da

1. Hydrophobic parameters calculation reference value (XlogP): none

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond receptors: 12

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: None

6. Topological molecular polar surface area 266

7. Number of heavy atoms: 17

8. Surface charge: 0

9. Complexity: 62.2

10. Number of isotope atoms: 0

11. Determine the number of atomic stereoscopic centers: 0

12. Uncertain number of atomic stereoscopic centers: 0

13. Determine the number of chemical bond stereotactic centers: 0

14. Uncertain number of chemical bond stereotactic centers: 0

15. Number of covalent bond units: 5

1. Properties: The liquid is a reddish-brown viscous liquid, and the solid is a light yellow granule.

2. Density (g/mL, 25°C): 3.097

3. Relative vapor density (g/mL, air = 1): not determined

4. Melting point (ºC): 480

5. Boiling point (ºC, normal pressure): not determined

6. Boiling point (ºC, 5.2kPa): not determined

7. Refractive index: not determined

8. Flash point (ºC): Not determined

9. Specific optical rotation (º): not determined

10. Spontaneous ignition point or ignition temperature (ºC): not determined

11. Vapor pressure (kPa, 20ºC): 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 oil-water (octanol/water) partition coefficient: not determined

17. Upper limit of explosion (%, V/V): Not determined

18. Lower explosion limit (%, V/V): not determined

19. Solubility: soluble in water. The aqueous solution reacts acidicly. Slightly soluble in ethanol, insoluble in acetone, ethyl acetate, concentrated sulfuric acid.