4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt is an organic compound characterized by its navy blue color. It is soluble in water, resulting in a dark purple solution, and slightly soluble in alcohol, which gives a deep navy blue color. 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt exhibits various properties, such as light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater, making it suitable for various applications.
6222-42-0
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Basic information
- Product Name: 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
- Synonyms: 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt;C.I.17185;C.I.Acid Blue 6
- CAS NO:6222-42-0
- Molecular Formula:
- Molecular Weight: 0
- EINECS: N/A
- Product Categories: N/A
- Mol File: 6222-42-0.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt(CAS DataBase Reference)
- NIST Chemistry Reference: 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt(6222-42-0)
- EPA Substance Registry System: 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt(6222-42-0)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 6222-42-0(Hazardous Substances Data)
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6222-42-0 Usage
Uses
Used in Dye Industry:4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt is used as a dye for its navy blue color. Its solubility in water and alcohol makes it suitable for coloring various materials, including fabrics and plastics.
Used in Textile Industry:
In the textile industry, 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt is used as a colorant for fabrics. Its light fastness, soaping, and perspiration fastness properties ensure that the color remains vibrant and resistant to fading and staining under various conditions.
Used in Plastics Industry:
4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt is used as a colorant for plastics. Its navy blue color and solubility in water and alcohol make it an ideal choice for coloring various types of plastics.
Used in Analytical Chemistry:
In analytical chemistry, 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt can be used as an indicator or reagent due to its color-changing properties in the presence of strong acids and bases. For example, it turns red when mixed with strong hydrochloric acid and navy blue when mixed with strong sodium hydroxide solution.
Used in Water Treatment:
4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt can be used in water treatment processes, particularly for the removal of heavy metals and other contaminants. Its strong sulfuric acid property allows it to react with contaminants, making them easier to remove from water.
Preparation
N-(4-amino-3-nitrophenyl)acetamide?diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?in acid conditions coupled, then acetaminophen hydrolysis.Standard
Light FastnessFading
StainISO
3Check Digit Verification of cas no
The CAS Registry Mumber 6222-42-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,2 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.Calculate Digit Verification of CAS Registry Number 6222-42:
(6*6)+(5*2)+(4*2)+(3*2)+(2*4)+(1*2)=70
70 % 10 = 0
So 6222-42-0 is a valid CAS Registry Number.
InChI:InChI=1/C16H13N5O9S2.2Na/c17-8-1-2-10(11(5-8)21(23)24)19-20-16-13(32(28,29)30)4-7-3-9(31(25,26)27)6-12(22)14(7)15(16)18;;/h1-6,22H,17-18H2,(H,25,26,27)(H,28,29,30);;/q;2*+1/p-2
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4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
