12238-94-7 Usage
Description
Neutral Brown Rl is a red light brown to black brown powder that is soluble in water, resulting in a black brown solution. It is a dye that is commonly used in the textile industry for various applications.
Uses
Used in Textile Industry:
Neutral Brown Rl is used as a dye for wool, silk, polyamide, PVA, and their blended fabrics. It is known for its good light fastness, soaping fastness, perspiration fastness, and oxygen bleaching fastness, making it a reliable choice for染色 (shǎirǎnyìng) or dyeing and printing.
Used in Leather Industry:
Neutral Brown Rl is also used for leather dyeing, providing a consistent and long-lasting color that is resistant to fading and staining.
Standard:
The standard for Neutral Brown Rl includes the following ratings for various fastness properties:
Light Fastness: ISO 7
Soaping Fastness: ISO 5
Perspiration Fastness: ISO 5
Oxygen Bleaching Fastness: ISO 4-5
Fastness to Seawater: ISO 4
Fading: ISO 4-5
Stain: ISO 5
These ratings indicate the performance and durability of Neutral Brown Rl in various conditions, making it a suitable choice for a range of applications in the textile and leather industries.
Preparation
2-Amino-4-nitrophenol diazo, and N-(2-hydroxy-5-methylphenyl)acetamide?coupling, and then turn it into 1:2 chromium complex.
Standard
Light Fastness
Fading
Stain
ISO
7
Check Digit Verification of cas no
The CAS Registry Mumber 12238-94-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,3 and 8 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 12238-94:
(7*1)+(6*2)+(5*2)+(4*3)+(3*8)+(2*9)+(1*4)=87
87 % 10 = 7
So 12238-94-7 is a valid CAS Registry Number.