2,6-dibromopyridine

2,6-dibromopyridine structural formula

Structural formula

Business number 06SV
Molecular formula C5H3Br2N
Molecular weight 236.89
label

None

Numbering system

CAS number:626-05-1

MDL number:MFCD00006223

EINECS number:210-926-9

RTECS number:210-926-9

BRN number:108922

PubChem number:24861142

Physical property data

1.      Appearance: slightly white powder.

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

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

4. Melting point (ºC): 118-119

5. Boiling point (ºC,Normal pressure): 255

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

7. Refractive Index: Undetermined

8. Flashpoint (ºC): 213

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): 85.6

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Oil and water (octanol/Log value of water) partition coefficient: Undetermined

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

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

19. Solubility: Insoluble in water.

Toxicological data

1, acute toxicity: mice (orally) LDLo: 320 mg/kg

Since the LD50 of table salt is 3,000 mg/kg, BPA The degree of acute toxicity is the same as that of table salt.

Ecological data

It is harmful to water. Do not let this product come into contact with groundwater, waterways and sewage systems. Even a small amount of this product seeping into groundwater will cause harm to drinking water and is toxic to organic substances in the water. Do not discharge material into the environment without government permission.

Molecular structure data

1. Molar refractive index:39.72

2, Molar volume (cm3/mol): 115.0

3. Isotonic specific volume (90.2K):302.4

4. Surface tension (dyne/cm): 47.7

5. Polarizability 10-24cm3):15.74

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 2.9

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 12.9

7. Number of heavy atoms: 8

8. Surface charge: 0

9. Complexity: 68.8

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 a sealed container and keep in a cool, dry place . The storage place must be locked and the key must be given to a technical expert and their assistants for safekeeping. Keep away from oxidizing agents.

Synthesis method

None yet

Purpose

None yet

Resource:allhdi.com

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/30993

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