Palmityl palmitate
Structural formula
| Business number | 05K1 |
|---|---|
| Molecular formula | C32H64O2 |
| Molecular weight | 480.85 |
| label |
Cetyl palmitate, Palmitic acid,cetyl ester, Cetyl palmitate, Hexadecanyl palmitate |
Numbering system
CAS number:540-10-3
MDL number:MFCD00053739
EINECS number:208-736-6
RTECS number:RT4750000
BRN number:1805188
PubChem ID:None
Physical property data
1. Properties: Pearly white translucent fat-like substance. Virtually odorless.
2. Density (g/cm3, 20/4℃): 0.989
3. Relative steam density (g/cm3, air=1): 0.938~0.944 4. Melting point (ºC): 54
5. Boiling point (ºC, normal pressure): 360
6. Boiling point (ºC, 8kPa): Undetermined
7. Refractive index (n70D): 1.4398
8. Flash point (ºC): 269.8
9. Specific rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (kPa, 25ºC): Undetermined
12. Saturated vapor pressure (kPa, 55.1ºC): Undetermined
13. Heat of combustion (KJ/mol) : Undetermined
14. Critical temperature (ºC): Undetermined
15. Critical pressure (KPa): Undetermined
16. Oil and water (octanol /water) logarithmic value of the distribution coefficient: Undetermined
17. Explosion upper limit (%, V/V): Undetermined
18. Explosion lower limit (%, V/V) : Undetermined
19. Solubility: Soluble in boiling ethanol, ether, chloroform, carbon disulfide and oils, slightly soluble in petroleum ether, insoluble in water and cold ethanol.
Toxicological data
1. Skin/eye irritation data: Standard Draize test rabbit direct contact with skin: 500mg/24HREACTION SEVERITY: Mild;
Ecological data
This substance may be harmful to the environment, and special attention should be paid to water bodies.
Molecular structure data
1. Molar refractive index: 152.07
2. Molar volume (cm3/mol): 560.2
3. Isotonic specific volume (90.2K ): 1329.9
4. Surface tension (dyne/cm): 31.7
5. Polarizability (10-24cm3): 60.28
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 15.2
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 2
4. Number of rotatable chemical bonds: 30
5. Number of tautomers: None
6. Topological molecule polar surface area 26.3
7. Number of heavy atoms: 34
8. Surface charge: 0
9. Complexity: 379
10. Number of isotope atoms: 0
11. Determine the atomic configuration Number of centers: 0
12. Uncertain number of atomic stereocenters: 0
13. Determined number of chemical bond stereocenters: 0
14. Uncertain Number of stereocenters of chemical bonds: 0
15. Number of covalent bond units: 1
Properties and stability
1. Use and store according to specifications. It will not decompose and avoid contact with oxides.
2. Exist in tobacco leaves and smoke.
Storage method
Stored in a cool, dry and well-ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The packaging is sealed. They should be stored separately from acids and food chemicals, and avoid mixed storage. Suitable materials should be available in the storage area to contain spills.
Synthesis method
None yet
Purpose
The base of the ointment. Egg yolk or almond oil emulsion. Make soap and mineral candles.