3838-30-0 Usage
Uses
Used in Textile Industry:
6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt is used as a dye in the textile industry for coloring fabrics. Its ability to produce vibrant colors and its solubility in water make it a suitable choice for dyeing various types of textiles.
Used in Analytical Chemistry:
6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt is also used in analytical chemistry as a reagent for the detection and quantification of certain metal ions, such as iron, due to its reaction with concentrated hydrochloric acid to form an orange-brown precipitate.
Used in Quality Control:
6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt is utilized in the assessment of various fastness properties of textiles, such as ironing fastness, light fastness, perspiration fastness, soaping, water, alkali, and acid resistance. 6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt's ability to form different colored precipitates under specific conditions helps in evaluating the durability and performance of textile materials.
Standard:
6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt adheres to the ISO standards for textile testing, with ratings of 4 to 6 for ironing fastness, light fastness, and perspiration fastness, and a rating of 4-5 for water, alkali, and acid resistance. These ratings indicate the level of performance and durability expected from textiles treated with 6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt.
Preparation
2-Amino-4,6-dinitrophenol diazotization, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.
Standard
Ironing Fastness
Alkali
Acid
ISO
4
Check Digit Verification of cas no
The CAS Registry Mumber 3838-30-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,3 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3838-30:
(6*3)+(5*8)+(4*3)+(3*8)+(2*3)+(1*0)=100
100 % 10 = 0
So 3838-30-0 is a valid CAS Registry Number.
InChI:InChI=1/C16H10N4O9S/c21-14-4-1-8-5-10(30(27,28)29)2-3-11(8)15(14)18-17-12-6-9(19(23)24)7-13(16(12)22)20(25)26/h1-7,17,22H,(H,27,28,29)/b18-15-
