Tetraethyl diphosphate Tetraethyl diphosphate
Structural formula
| Business number | 02VD |
|---|---|
| Molecular formula | C8H20O7P2 |
| Molecular weight | 290.19 |
| label |
Tetraethylpyrophosphate, Tepp, Bladan, Tetrastigmine, Vapotone, Fosvex, Tetraethyl pyrophosphate, Organophosphorus pesticides |
Numbering system
CAS number:107-49-3
MDL number:MFCD00055459
EINECS number:203-495-3
RTECS number:UX6825000
BRN number:1714017
PubChem number:24862556
Physical property data
1. Properties: colorless, odorless, hygroscopic liquid.
2. Density (g/mL, 25℃): 1.185
3. Relative vapor density (g/mL, air=1): Undetermined
4. Melting point (ºC): Undetermined
5. Boiling point (ºC, normal pressure):
6. Boiling point (ºC, 0.133kPa): 124
7. Refractive index (D20): Not determined
8. Flash point (ºC): Not determined
9. Specific rotation (ºC): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (mmHg, 20ºC): Undetermined
12. Saturated vapor pressure (kPa, 20ºC): 0.206×10-4
13. Heat of combustion (KJ/mol): Undetermined
14. Critical temperature (ºC): Undetermined
15. Critical pressure (KPa): Undetermined
16. Log value of oil-water (octanol/water) partition coefficient: Undetermined
17. Explosion upper limit (%, V/V): Undetermined
18. Explosion lower limit (%, V/V): Undetermined
19. Solubility: miscible with water and most organic solvents.
Toxicological data
1. Acute toxicity: Rat oral LD5O: 0.5mg/kg
Rabbit transdermal LD5O: 2.4mg/kg
Mouse oral LD5O: 0.5mg/ kg
Ecological data
This substance may be harmful to the environment and it is recommended not to let it enter the environment.
Molecular structure data
1. Molar refractive index: 61.58
2. Molar volume (cm3/mol): 240.6
3. Isotonic specific volume (90.2K ): 592.9
4. Surface tension (dyne/cm): 36.8
5. Polarizability (10-24cm3): 24.41
p>
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 0.4
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 7
4. Number of rotatable chemical bonds: 10
5. Number of tautomers: none
6. Topological molecule polar surface area 80.3
7. Number of heavy atoms: 17
8. Surface charge: 0
9. Complexity: 246
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 chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
Avoid contact with strong alkali, water, and humid air.
Storage method
Stored in a cool, dry and well-ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The packaging must be sealed and protected from moisture. They should be stored separately from alkalis, edible chemicals, etc., and avoid mixed storage. Equipped with the appropriate variety and quantity of fire equipment. The storage area should be equipped with emergency release equipment and suitable containment materials. The “five pairs” management system for extremely toxic substances should be strictly implemented.
Synthesis method
None
Purpose
Used as agricultural aphidicide and acaricide.