Physical and chemical properties of dioctyl phthalate
Density 1.0±0.1 g/cm3
Boiling point 384.9±10.0 °C at 760 mmHg
Melting point -50 °C
Molecular formula C24H38O4
Molecular weight 390.556
Flash point 207.2±0.0 °C
Exact quality 390.277008
PSA 52.60000
LogP 8.71
Appearance traits transparent liquid
Vapor density >16 (vs air)
Vapor pressure 0.0±0.9 mmHg at 25°C
Refractive index 1.489
Storage conditions
Store in a cool, ventilated warehouse. Keep away from fire and heat. Protect from direct sunlight. Keep the container sealed. It should be stored separately from oxidants and acids, and should not be mixed. Equipped with the appropriate variety and quantity of fire equipment. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.
Packed in iron drums with a specification of 200kg/barrel. Storage should pay attention to cool and ventilated, prevent leakage into the barrel, and transport according to the general dangerous goods regulations. Storage temperature 2~8oC
Stability
1. Normal temperature and pressure are stable, avoid contact with strong oxidants and acids. Soluble in most organic solvents, insoluble in water, good resistance to water, light and cold. It has good compatibility with polyvinyl chloride, cellulose acetate, polystyrene, etc., but has poor compatibility with cellulose acetate and polyvinyl acetate. Combustible. The chemical properties are very stable and difficult to hydrolyze.
2. The toxicity of this product is low, and the animal oral LD50>30000mg/kg. France, Britain, Japan, Germany and other countries allow this product to be used for contact with food (except fatty foods) plastic products. The United States allows this product to be used for cellophane, paint, adhesives and rubber products. 20
In the 1980s, there was a debate about whether DOP could cause cancer. Although there is no clear evidence to prove it, countries are looking for substitutes for DOP.
3. Exist in mainstream smoke.
4. Irritating to eyes and mucous membranes.
Water solubility Negligible
Freezing point <-60°C
Molecular Structure
1, molar refractive index: 114.57
2, molar volume (cm3 / mol): 397.0
3, isotonic capacity (90.2K): 968.7
4. Surface tension (dyne/cm): 35.4
5. Polarization rate (10-24cm3): 45.42
Computing chemistry
1. Hydrophobic parameter calculation reference value (XlogP): none
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 4
4. Number of rotatable chemical bonds: 16
5. Number of tautomers: none
6. Topological molecular polarity surface area 52.6
7. Number of heavy atoms: 28
8. Surface charge: 0
9. Complexity: 394
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertainty of the number of atomic stereocenters: 2
13. Determine the number of chemical bond stereocenters: 0
14. Uncertain chemical bond number of stereocenters: 0
15. Number of covalent bond units: 1
More
1. Properties: colorless or light yellow viscous liquid, slightly odorous.
2. Relative density (g/mL, 20/4 °C): 0.986
3. Relative vapour density (g/mL, air = 1): >16
4. Melting point (oC): -55
5. Boiling point (oC, atmospheric pressure): 384
6. Boiling point (oC, 0.6666KPa): 230
7. Refractive index (20oC): 1.4859
8. Flash point (oC, opening): 109
9. Self-ignition point or ignition temperature (oC): 241
10. Vapor pressure (kPa, 200oC): 0.16
11. Vapor pressure (kPa, 20oC): <0.0013
12. Lower explosion limit (%, V/V): 0.3
13. Viscosity (mPa·s, 20oC): 81
14. Conductivity (S/m, 25oC): 7.4×10-13
15. Solubility: Insoluble in water, miscible with common organic solvents. Highly soluble in cellulose acetoacetate, nitrocellulose, polymethyl methacrylate, synthetic rubber, dammar resin, coumarone resin, styrene-vinyl chloride-vinyl acetate copolymer and vinyl chloride. ability. Polyvinyl acetate and shellac are difficult to dissolve.
16. Liquid standard hot melt (J·mol-1·K-1): 704.7
China (Mainland)
