Epoxy curing agent Knowledge 1-methyl-2-pyridone

1-methyl-2-pyridone

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1-methyl-2-pyridone structural formula

Structural formula

Business number 07AE
Molecular formula C6H7NO
Molecular weight 109.13
label

heterocyclic compounds,

Organic synthetic raw materials

Numbering system

CAS number:694-85-9

MDL number:MFCD00006520

EINECS number:211-777-2

RTECS number:UV1148100

BRN number:107805

PubChem number:24897190

Physical property data

1. Character: liquid.


2. Density (g/mL,25/4): 1.129


3. Relative vapor density (g/mL,AIR=1): Undetermined


4. Melting point (ºC): 30-32


5. Boiling point (ºC,Normal pressure): 249-251


6. Boiling point (ºC,5.2kPa): Undetermined


7. Refractive index: 1.569


8. Flash point (ºC): Undetermined


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/Logarial value of the partition coefficient of water: undetermined


17. Explosion limit (%,V/V): Undetermined


18. Lower explosion limit (%,V/V): Undetermined


19. Solubility: Undetermined .

Toxicological data

1, acute toxicity: Quail (oral) LD50: 421 mg/kg
Since the LD50 of table salt is 3,000 mg/kg, BPA is The degree of acute toxicity is the same as that of table salt.

Ecological data

If it is slightly harmful to water, do not Allow undiluted or large amounts of product to come into contact with groundwater, waterways or sewage systems. Do not release material into the environment without government permission.

Molecular structure data


1. Molar refractive index: 30.67


2. Molar Volume m 3/mol100.5


3. isotonic ratio90.2K247.3


4. Surface Tensiondyne/cm36.5


5. Dielectric constant:


6. Dipole moment10 -24cm3)


7. Polarizability: 12.15


Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): None

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 1

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: none

6. Topological molecule polar surface area 20.3

7. Number of heavy atoms: 8

8. Surface charge: 0

9. Complexity: 158

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

Keep away from oxides.

Storage method

Store in an airtight container and place Store in a cool, dry place. Store away from oxidizing agents.

Synthesis method

React pyridine and dimethyl sulfate to form a salt, add potassium ferricyanide solution and sodium hydroxide solution, the adding temperature does not exceed10℃, place5h, the temperature rises to room temperature. Add anhydrous sodium carbonate with stirring until 1-Methyl-2-The pyridone salts out from the reaction mixture. Separate the precipitated oil layer to 65-70% The yield of the finished product is obtained.


Purpose


Used in organic synthesis.

Resource:allhdi.com

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