61724-04-7
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Basic information
- Product Name: Acid Brown 21
- Synonyms: Acid Brown 21;C.I.AcidBlack21;NEUTER BROWN BRL;Brown BRL;C.I.Acid Brown 21;Polfalan Brown TLN
- CAS NO:61724-04-7
- Molecular Formula: C19H18N4O5S
- Molecular Weight: 414.43
- EINECS: N/A
- Product Categories: N/A
- Mol File: 61724-04-7.mol
- Article Data: 0
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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: Acid Brown 21(CAS DataBase Reference)
- NIST Chemistry Reference: Acid Brown 21(61724-04-7)
- EPA Substance Registry System: Acid Brown 21(61724-04-7)
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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: 61724-04-7(Hazardous Substances Data)
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61724-04-7 Usage
Description
Acid Brown 21 is a red light brown colored dye, typically in the form of a brown powder. It exhibits different color shades and reactions when mixed with various chemicals, such as strong sulfuric acid, hydrochloric acid, nitric acid, and sodium hydroxide solution.Uses
Used in Textile Industry:Acid Brown 21 is used as a dye for loose hair, tops, and polyamide articles. It is often used in combination with other dyes for better colorfastness and performance.
Used in Dyeing and Printing:
Acid Brown 21 is used for dyeing and printing on PVA fabric, as well as for blending with cotton, wool, and rayon fabrics. It provides good colorfastness and is suitable for various dyeing processes.
Used in Leather Dyeing:
Acid Brown 21 is also used for leather dyeing, providing a consistent color and good fastness properties.
Standard:
The colorfastness properties of Acid Brown 21 are rated according to ISO standards, with light fastness rated at 6-7, soaping fastness at 5, perspiration fastness at 5, oxygen bleaching at 5, and fastness to seawater at 5. The fading and staining properties are rated between 4-5, indicating moderate to good performance in these areas.
Preparation
3-Amino-4-hydroxy-N-methylbenzenesulfonamide diazo, and N-(7-hydroxynaphthalen-1-yl)acetamide coupling, and the other will be 3-Amino-4-hydroxybenzenesulfonamide diazo, and 1-(4-Chlorophenyl)-3-methyl-1H-pyrazol-5(4H)-one?coupling, and then turn it into 1:2 chromium complex.Standard
Light FastnessFading
StainISO
6-7Check Digit Verification of cas no
The CAS Registry Mumber 61724-04-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,7,2 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.Calculate Digit Verification of CAS Registry Number 61724-04:
(7*6)+(6*1)+(5*7)+(4*2)+(3*4)+(2*0)+(1*4)=107
107 % 10 = 7
So 61724-04-7 is a valid CAS Registry Number.
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Acid Brown 21
