Toluene diisocyanate manufacturer Knowledge Quinalizarin Quinalizarin

Quinalizarin Quinalizarin

Quinoalizarin structural formula

Structural formula

Business number 01SA
Molecular formula C14H8O6
Molecular weight 272.21
label

1,2,5,8-Tetrahydroxyanthraquinone

Numbering system

CAS number:81-61-8

MDL number:None

EINECS number:201-366-6

RTECS number:None

BRN number:None

PubChem ID:None

Physical property data

1. Character: red needle crystal


2. Density (g/mL,25/4℃): Unsure


3. relativeVapor density (g/mL,Air=1): Unsure


4. Melting point (ºC):> 275


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


6. Boiling point (ºC,5.2kPa): Unsure


7. Refractive index: Uncertain


8. Flash Point (ºC): Unsure


9. Specific optical rotation (º): Unsure


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


11. Vapor pressure (kPa,25ºC): Unsure


12. Saturated vapor pressure (kPa,60ºC): Unsure


<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 36pt; TEXT-INDENT: -18pt; TEXT-ALIGN: left; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt; mso-pagination: widow- orphan; mso-margi


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


19. Solubility:It is reddish purple when dissolved in alkaline aqueous solution, yellow in acetic acid, blue-violet in sulfuric acid, and produces a matte red precipitate when diluted. Soluble in ethanol, very slightly soluble in various organic solvents, insoluble in water

Toxicological data

1, acute toxicity


Rat caliberLD:>500 mg/kg;


2, teratogenicity


Salmonella: 50ug/plate

Ecological data

None yet

Molecular structure data

1. Molar refractive index: 66.19


2. Molar volume (m3/mol):152.7


3. isotonic specific volume (90.2K):495.7


4. Surface Tension (dyne/cm):110.8


5. Polarizability10-24cm3):26.24

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 2.5

2. Number of hydrogen bond donors: 4

3. Number of hydrogen bond acceptors: 6

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: 227

6. Topological molecular polar surface area 115

7. Number of heavy atoms: 20

8. Surface charge: 0

9. Complexity: 435

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

None yet

Storage method

This product should be sealed and stored in a dry and dark place.

Synthesis method

None yet

Purpose

Determination of trace amounts of beryllium, magnesium, calcium, aluminum, lanthanum, thorium, cerium, praseodymium, neodymium, zirconium and boron. Mordant dyes for cotton.

el2 lfo1; tab-stops: list 36.0pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto” align=left>2. Molar volume (m3/mol ): 152.7


3. isotonic specific volume (90.2K):495.7


4. Surface Tension (dyne/cm):110.8


5. Polarizability10-24cm3):26.24

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 2.5

2. Number of hydrogen bond donors: 4

3. Number of hydrogen bond acceptors: 6

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: 227

6. Topological molecular polar surface area 115

7. Number of heavy atoms: 20

8. Surface charge: 0

9. Complexity: 435

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

None yet

Storage method

This product should be sealed and stored in a dry and dark place.

Synthesis method

None yet

Purpose

Determination of trace amounts of beryllium, magnesium, calcium, aluminum, lanthanum, thorium, cerium, praseodymium, neodymium, zirconium and boron. Mordant dyes for cotton.

Determination of trace amounts of beryllium, magnesium, calcium, aluminum, lanthanum, thorium, cerium, praseodymium, neodymium, zirconium and boron. Mordant dyes for cotton.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/24710

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