Nippon Brown BK is a red light brown dye that is soluble in water, turning the solution red light brown. It exhibits various reactions when exposed to different chemicals, such as turning red light purple in strong sulfuric acid and forming a brown precipitate when diluted. When added to a dye solution, the introduction of strong hydrochloric acid results in brown precipitation, while the addition of a thick sodium hydroxide solution does not cause any change.
6473-06-9
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Basic information
- Product Name: Nippon Brown BK
- Synonyms: C.I.35060;C.I.Direct Brown 39;Direct Brown BC;Direct Brown BX;Nippon Brown BK;Symulon Direct Brown BC
- CAS NO:6473-06-9
- Molecular Formula: C44H32N12Na2O6S2
- Molecular Weight: 934.91122
- EINECS: N/A
- Product Categories: N/A
- Mol File: 6473-06-9.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: Nippon Brown BK(CAS DataBase Reference)
- NIST Chemistry Reference: Nippon Brown BK(6473-06-9)
- EPA Substance Registry System: Nippon Brown BK(6473-06-9)
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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: 6473-06-9(Hazardous Substances Data)
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6473-06-9 Usage
Uses
Used in Textile Industry:Nippon Brown BK is used as a dye in the textile industry for coloring fabrics. Its properties make it suitable for various applications, including:
1. Acid Resistance: Nippon Brown BK exhibits good acid resistance, with a rating of 3 on the ISO scale, making it suitable for use in acidic environments or processes.
2. Alkali Resistance: The dye also demonstrates good alkali resistance, with a rating of 4 on the ISO scale, allowing it to maintain its color even in alkaline conditions.
3. Light Fastness: Nippon Brown BK has a light fastness rating of 2, indicating that it can withstand exposure to light without significant color fading.
4. Soaping: The dye has a soaping rating of 1-2 on the ISO scale, suggesting that it can be effectively removed from fabrics during the soaping process, which is essential for maintaining the color and quality of the fabric.
5. Water: Nippon Brown BK has a water rating of 1, indicating that it is easily soluble in water, making it suitable for dyeing processes that involve water as a solvent.
6. Fading: The dye has a fading rating of 1, which means it maintains its color well over time and is resistant to fading.
7. Stain: Nippon Brown BK has a stain rating of 1, suggesting that it is less likely to cause staining on fabrics, ensuring a clean and even color application.
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid diazo, and Benzene-1,3-diamine coupled to a single accidentally nitrogen compounds (2 Moore) coupled.Standard
Acid ResistanceFading
StainISO
3Check Digit Verification of cas no
The CAS Registry Mumber 6473-06-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,7 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.Calculate Digit Verification of CAS Registry Number 6473-06:
(6*6)+(5*4)+(4*7)+(3*3)+(2*0)+(1*6)=99
99 % 10 = 9
So 6473-06-9 is a valid CAS Registry Number.
6473-06-9Upstream product
6473-06-9Downstream Products
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Nippon Brown BK
