Formyl hydrazide
Structural formula
| Business number | 06RG |
|---|---|
| Molecular formula | CH4N2O |
| Molecular weight | 60.06 |
| label |
hydrazine formate, Formic acid hydrazide, Formic acid hydrazide, Formic hydrazide, HCONHNH2 |
Numbering system
CAS number:624-84-0
MDL number:MFCD00007589
EINECS number:210-867-9
RTECS number:LQ8615000
BRN number:635759
PubChem number:24850161
Physical property data
1. Characteristics: white crystal.
2. Density (g/mL,25/4℃):
3. Relative vapor density (g/mL,Air=1): Undetermined
4. Melting point (ºC): 55-59
5. Boiling point (ºC,Normal pressure): Undetermined
6. Boiling point (ºC,5.2kPa): Undetermined
7. Refractive Index: Undetermined
8. Flash Point (ºC):>110
9. Specific optical rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (kPa,25ºC): Undetermined
12. Saturated vapor pressure (kPa,60ºC): Undetermined
13. Heat of combustion (KJ/mol): Undetermined
14. Critical temperature (ºC): Undetermined
15. Critical pressure (KPa): Undetermined
16. Oil and water (octanol/Log value of water) partition coefficient: Undetermined
17. Explosion upper limit (%,V/V ): Undetermined
18. Lower explosion limit (%,V/V): Undetermined
19. Solubility: soluble in water.
Toxicological data
1, acute toxicity: mice (peritoneal) LD50: 65mg/kg
Rat (subcutaneous)LD50: 120mg/kg
Since the LD50 of table salt is 3,000 mg/kg, the acute toxicity of BPA is the same as that of table salt.
Ecological data
For products that are slightly harmful to water, do not let large amounts of products come into contact with groundwater, waterways or sewage systems. Do not discharge materials into the surrounding environment without government permission.
Molecular structure data
1. Molar refractive index:13.99
2. Molar Volume (cm3/mol):54.8
3. isotonic ratio (90.2K）：137.8
4. Surface Tension (dyne/cm）：39.8
5. Polarization Rate（10-24cm3): 5.54
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 2
3. Number of hydrogen bond acceptors: 2
4. Number of rotatable chemical bonds: 0
5. Number of tautomers: 2
6. Topological molecule polar surface area 55.1
7. Number of heavy atoms: 4
8. Surface charge: 0
9. Complexity: 20
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. UnsureNumber of stereocenters of chemical bonds: 0
15. Number of covalent bond units: 1
Properties and stability
Keep away from oxides and moisture.
Storage method
Store in an airtight container in a cool, dry place. The storage place must be away from oxidants and water sources. Avoid contact with moisture and water.
Synthesis method
It is obtained by the reaction of ethyl formate and hydrazine hydrate. Carefully add 85% hydrazine hydrate to the solution of ethyl formate and 95% ethanol, and stir for 10 minutes. When the reaction eases, the reaction solution is heated to reflux for 18 hours, and most of the water and ethanol are evaporated under reduced pressure to obtain crude syrupy product, which is further refined to obtain the finished product of carboxyl hydrazide.
Purpose
Used in organic synthesis.