548-80-1 Usage
Description
CHROMOTROPE 2B, also known as a chromotropic acid azo dye, is a dark green to dark purple crystalline powder that is soluble in water and exhibits a blue-ray red color. It is a groundwater pollutant that can be removed from the environment through photoelectrochemical mineralization.
Uses
Used in Dye Industry:
CHROMOTROPE 2B is used as a dye for its blue-ray red color, which is soluble in water and can be used to create yellow light red solutions.
Used in Reagent Industry:
CHROMOTROPE 2B is used as a reagent for boric acid or borates, due to its ability to react with these compounds.
Used in Environmental Remediation:
CHROMOTROPE 2B is used in the removal of groundwater pollutants through photoelectrochemical mineralization, helping to clean up contaminated water sources.
Chemical Properties:
CHROMOTROPE 2B is a dark green to dark purple crystalline powder that is soluble in water, creating a yellow light red solution. When mixed with strong sulfuric acid, it turns dark purple, and when hydrochloric acid is added to its water solution, it becomes yellow. The addition of sodium hydroxide to the solution results in a blue-ray red color.
Standard:
The light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater of CHROMOTROPE 2B are rated as follows:
Light Fastness: ISO 6-7
Soaping: 4
Perspiration Fastness: 4
Oxygen Bleaching: 4
Fastness to Seawater: 4-5
These ratings indicate the dye's performance and stability under various conditions, making it suitable for specific applications in the dye and reagent industries.
Preparation
4-Nitrobenzenamine diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling.
Standard
Light Fastness
Fading
Stain
ISO
6-7
Check Digit Verification of cas no
The CAS Registry Mumber 548-80-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,4 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 548-80:
(5*5)+(4*4)+(3*8)+(2*8)+(1*0)=81
81 % 10 = 1
So 548-80-1 is a valid CAS Registry Number.
InChI:InChI=1/C16H11N3O10S2.2Na/c20-12-7-11(30(24,25)26)5-8-6-13(31(27,28)29)15(16(21)14(8)12)18-17-9-1-3-10(4-2-9)19(22)23;;/h1-7,17,20H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b18-15-;;
