Vat Orange 21 is a yellow-orange dye that is insoluble in xylene. It exhibits various properties such as ironing fastness, chlorine bleach, light fastness, mercerized, oxygen bleach, and soaping. It has a strong sulfuric acid reaction that turns it red light brown, which then forms a brown precipitation upon dilution. In an alkaline solution, the hidden color reduction appears brown, while in an acidic solution, the hidden color reduction appears orange.
1328-39-8
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Basic information
- Product Name: Vat Orange 21
- Synonyms: Vat Orange 21
- CAS NO:1328-39-8
- Molecular Formula:
- Molecular Weight: 0
- EINECS: N/A
- Product Categories: N/A
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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: Vat Orange 21(CAS DataBase Reference)
- NIST Chemistry Reference: Vat Orange 21(1328-39-8)
- EPA Substance Registry System: Vat Orange 21(1328-39-8)
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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: 1328-39-8(Hazardous Substances Data)
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1328-39-8 Usage
Uses
Used in Textile Industry:Vat Orange 21 is used as a dye for coloring fabrics, providing a vibrant orange hue. Its properties such as ironing fastness, chlorine bleach, light fastness, and resistance to oxygen bleach and soaping make it a suitable choice for various textile applications.
Used in Color Fastness Testing:
Vat Orange 21 is used as a reference dye in color fastness testing, helping to determine the performance of other dyes and fabrics under various conditions, such as exposure to ironing, chlorine bleach, light, and oxygen bleach.
Used in Quality Control:
Vat Orange 21 can be used in quality control processes to ensure that fabrics and dyes meet industry standards for color fastness and resistance to various environmental factors.
Preparation
in a higher temperature, 2-Methylanthracene-9,10-dione (or some chlorine derivatives) and brimstone common heating, its product Sodium hypochlorite with treatment (with or without sulfuric acid pretreatment all but)Standard
Ironing FastnessFading
StainISO
5Check Digit Verification of cas no
The CAS Registry Mumber 1328-39-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,2 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.Calculate Digit Verification of CAS Registry Number 1328-39:
(6*1)+(5*3)+(4*2)+(3*8)+(2*3)+(1*9)=68
68 % 10 = 8
So 1328-39-8 is a valid CAS Registry Number.
1328-39-8Upstream product
1328-39-8Downstream Products
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Vat Orange 21
