Superiority:
1,Best Quality:
Our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us.
2, Payment method: for example T/T, Westerm Union,other
3, Excellent Service: Best service and after-sales service to all clients.
1)We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment..
2)We will ship the goods that you order from us by DHL, UPS, TNT and EUB.We will decided to choose which courier depend on different countries.To find the best way to delivery the goods for you.
3)As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact us immediately.
4,Fast and safe delivery:
Sample Order : As usual you can get the goods within 4-7days. We can send it via HKems, HK Air Post, DHL or other methods.
We have a professional and stable logistics, and we can deliver the package smoothly around 3 to 5 days.
Bulk Order: Shipped via sea or air, it's according to your requirement, delivery time is 7-15days after payment.
If you have any other questions to consult me,please not hesitate to contact me any times.
Details:
O-xylene physicochemical properties
Density 0.9±0.1 g/cm3
Boiling point 145.9±10.0 °C at 760 mmHg
Melting point -26--23 °C (lit.)
Molecular formula C8H10
Molecular weight 106.165
Flash point 32.2 ± 0.0 °C
Exact mass 106.078247
LogP 3.14
Appearance traits colorless liquid
Steam density 3.7 (vs air)
Vapor pressure 6.0±0.1 mmHg at 25°C
Refractive index 1.500
Storage conditions
Storage precautions Store in a cool, ventilated warehouse. Keep away from fire and heat. The temperature should not exceed 37 °C. Keep the container sealed. should be kept away from oxidizer, do not store together. Explosion-proof lighting and ventilation facilities are used. It is forbidden to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.
Stability
1. Dilute nitric acid to form o-toluic acid. Oxidation of potassium permanganate gives phthalic acid and o-methylbenzoic acid. Vanadium pentoxide was used as a catalyst to vapor phase oxidize at 480 ° C to form phthalic anhydride. The xylene is boiled under photocatalysis and chlorine gas is introduced to form chloroxylene (CH3C6H4CH2Cl); when chlorine is continuously passed, the hydrogen on both sides of the chain may be sequentially substituted by chlorine.
2. Stability Stable
3. Incompatible materials Strong oxidizing agents, halogens
4. Polymerization hazard does not polymerize
Molecular Structure
1, molar refractive index: 35.90
2, molar volume (cm3 / mol): 121.9
3, isotonic capacity (90.2K): 282.5
4. Surface tension (dyne/cm): 28.7
5. Polarization rate (10-24cm3): 14.23
Computing chemistry
1. Hydrophobic parameter calculation reference value (XlogP): none
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 0
4. Number of rotatable chemical bonds: 0
5. Number of tautomers: none
6. Topological molecular polarity surface area 0
7. Number of heavy atoms: 8
8. Surface charge: 0
9. Complexity: 56.4
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertainty of the number of atomic stereocenters: 0
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 transparent liquid with a smell similar to toluene.
2. Melting point (°C): -25
3. Boiling point (°C): 144.4
4. Relative density (water = 1): 0.88
5. Relative vapor density (air = 1): 3.66
6. Saturated vapor pressure (kPa): 1.33 (32 ° C)
7. Heat of combustion (kJ/mol): -4845.3
8. Critical temperature (°C): 359
9. Critical pressure (MPa): 3.7
10. Octanol / water partition coefficient: 3.12
11. Flash point (°C): 16 (CC)
12. Ignition temperature (°C): 463
13. Upper explosion limit (%): 7
14. Lower explosion limit (%): 0.9
15. Solubility: Insoluble in water, soluble in most organic solvents such as ethanol, ether and chloroform.
16. Viscosity (mPa·s, 25oC): 0.754
17. Randian (oC): 495.5
18. Heat of evaporation (KJ/mol, 101.3 kPa): 36.84
19. Heat of evaporation (KJ/mol, 0.889 kPa): 43.463
20. Heat of fusion (KJ/mol, 101.3 kPa): 13.607
21. Heat of formation (KJ/mol, 25oC, gas): 19.008
22. Heat of formation (KJ/mol, 25oC, liquid): -24.455
23. Heat of combustion (KJ/mol, 25oC, gas): 4459.36
24. Heat of combustion (KJ/mol, 25oC, liquid): 4555.90
25. Specific heat capacity (KJ/(kg·K), 25oC, constant pressure): 1.26
26. Thermal conductivity (×10-4 W/(m·K), 16<t<91oC): (0.1320~1.6979)×10-4t
27. Relative density (20 ° C, 4 ° C): 0.8801
28. Normal temperature refractive index (n20): 1.5055
29. Critical density (g·cm-3): 0.287
30. Critical volume (cm3·mol-1): 370
31. Critical compression factor: 0.263
32. Eccentricity factor: 0.303
33.Lennard-Jones parameters (A): 15.06
34.Lennard-Jones parameters (K): 169.9
35. Solubility parameter (J·cm-3) 0.5: 18.453
36.van der Waals area (cm2·mol-1): 8.840×109
37.van der Waals volume (cm3·mol-1): 70.660
38. Gas phase standard combustion heat (焓) (kJ·mol-1): -4596.29
39. Gas phase standard claims heat (焓) (kJ·mol-1): 19.08
40. Gas phase standard entropy (J·mol-1·K-1): 353.94
41. Gas phase standard generation free energy (kJ·mol-1): 122.1
42. Gas phase standard hot melt (J·mol-1·K-1): 132.31
43. Liquid standard burning heat (焓) (kJ·mol-1): -4552.86
44. Liquid phase standard claims heat (焓) (kJ·mol-1): -24.35
45. Liquid standard entropy (J·mol-1·K-1): 246.61
46. ??Liquid phase standard generation free energy (kJ·mol-1): 110.46
47. Liquid standard hot melt (J·mol-1·K-1): 187.65
