Polyether_Polyether Polyol Knowledge 5,8-dihydroxy-1,4-naphthoquinone

5,8-dihydroxy-1,4-naphthoquinone

5,8-dihydroxy-1,4-naphthoquinone structural formula

Structural formula

Business number 0519
Molecular formula C10H6O4
Molecular weight 190.16
label

Naxi,

1,4-dihydroxynaphthoquinone,

5,8-Dihydroxy-1,4-naphthalenedione,

Naphthazarin

Numbering system

CAS number:475-38-7

MDL number:MFCD00001685

EINECS number:207-495-4

RTECS number:QL7970000

BRN number:880561

PubChem number:24851613

Physical property data

1. Character:Undetermined


2. Density (g/ m3,25/4): Undetermined


3. Relative vapor density (g/cm3,AIR=1): Undetermined


4. Melting point (ºC):220-230


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


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


7. Refractive index : Undetermined


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/Water) logarithmic value of the partition coefficient: undetermined


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


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


19. Solubility: Undetermined

Toxicological data

Mutagenicity data: microbial organismsTESTSystemic mutation: bacteriaSalmonella Typhimurium:100ug/Tablet

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:46.66


2 Molar Volumem3/mol)119.4


3 Isotonic specific volume (90.2K): 360.9


4 Surface tensiondyne/cm)83.5


5 Polarizability(10-24cm318.50

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 1.8

2. Number of hydrogen bond donors: 2

3. Number of hydrogen bond acceptors: 4

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: 6

6. Topological molecule polar surface area 74.6

7. Number of heavy atoms: 14

8. Surface charge: 0

9. Complexity: 277

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

Use and store according to specifications, will not decompose, and avoid contact with oxides

Storage method

Save in a sealed manner and place it in a ventilated and dry place to avoid contact with other oxides.

Synthesis method

None

Purpose

None

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.polyether-factory.com/archives/19890

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