Polyether_Polyether Polyol Knowledge 2,3-Dichloro-1,4-naphthoquinone

2,3-Dichloro-1,4-naphthoquinone

2,3-Dichloro-1,4-naphthoquinone structural formula

Structural formula

Business number 0398
Molecular formula C10H4Cl2O2
Molecular weight 227.05
label

2,3-Dichloro-1,4-naphthalenedione,

2,3-Dichloro-1,4-naphthalenedione,

fungicides,

fungicides,

Antifungal agent

Numbering system

CAS number:117-80-6

MDL number:MFCD00001677

EINECS number:204-210-5

RTECS number:QL7525000

BRN number:1073511

PubChem number:24862118

Physical property data

1. Characteristics: Yellow needle Crystal-like, odorless.


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


3. Relative vapor density (g/mL,Air=1 ): 7.8


4. Melting point (ºC): 193195


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


6. Boiling point (ºC, 0.27KPa):275


7. Refractive index: Undetermined


8. Flashpoint (ºC): Undetermined


9. Specific optical rotation (º): Undetermined


10. Autoignition point or ignition temperature (ºC): Undetermined


11. Vapor pressure (mmHg, ºC): Undetermined


12. Saturated vapor pressure (kPa, ºC): 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 the partition coefficient for water: undetermined


17.3, Isotonic specific volume (90.2K):400.9


4, Surface Tension (dyne/cm):55.3


5 Polarizability (10-24cm3):20.84

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: 2

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: none

6. Topological molecule polar surface area 34.1

7. Number of heavy atoms: 14

8. Surface charge: 0

9. Complexity: 301

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

Stable at room temperature and pressure, avoid contact with strong oxidants and strong alkali.

Storage method

Stored in a cool, ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The packaging is sealed. They should be stored separately from oxidants, alkalis, and food chemicals, and avoid mixed storage. Equipped with the appropriate variety and quantity of fire equipment. Suitable materials should be available in the storage area to contain spills.

Synthesis method

Obtained from the chlorination of 1,4- naphthoquinone. The chlorination operation is carried out in acetic anhydride or dinitrobenzene or alcohols, phenols, hydrocarbon solvents, and the catalyst is bromine or iron powder and ferric chloride. It can also be prepared from 1, 4- amino naphthalene sulfonic acid diluted in 50% In sulfuric acid solution, using iron as a catalyst, family: 宋体”>℃Obtained by chlorination.

Purpose

Used as agricultural fungicide.

�� and stability

Stable at room temperature and pressure, avoid contact with strong oxidants and strong alkali.

Storage method

Stored in a cool, ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The packaging is sealed. They should be stored separately from oxidants, alkalis, and food chemicals, and avoid mixed storage. Equipped with the appropriate variety and quantity of fire equipment. Suitable materials should be available in the storage area to contain spills.

Synthesis method

Obtained from the chlorination of 1,4- naphthoquinone. The chlorination operation is carried out in acetic anhydride or dinitrobenzene or alcohols, phenols, hydrocarbon solvents, and the catalyst is bromine or iron powder and ferric chloride. It can also be prepared from 1, 4- amino naphthalene sulfonic acid diluted in 50% In sulfuric acid solution, using iron as a catalyst, family: 宋体”>℃Obtained by chlorination.

Purpose

Used as agricultural fungicide.

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/18332

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