3682-47-1 Usage
Description
FAST SULPHON BLACK F is a complexometric indicator, primarily used for titrations. It is a black powder that exhibits various color changes when interacting with different chemicals, making it a valuable tool in the field of analytical chemistry.
Uses
Used in Analytical Chemistry:
FAST SULPHON BLACK F is used as a complexometric indicator for titrations, particularly with EDTA. It helps in determining the end point of the titration process by changing colors. The indicator may appear purple when complexed with copper and turns green upon the addition of EDTA.
Used in Staining:
FAST SULPHON BLACK F is also used as a stain due to its green and black color properties. It is soluble in water, ethanol, and slightly soluble in soluble fiber elements. The stain exhibits good light fastness, soaping fastness, perspiration fastness, oxygen bleaching fastness, and fastness to seawater, making it suitable for various staining applications.
Chemical Properties:
FAST SULPHON BLACK F is a black powder that shows different color variations when interacting with various chemicals. In a strong sulfuric acid solution, it appears as a dark blue light in purple, while in a diluted solution, it presents an olive color. When 10% sulfuric acid is added to its water solution, it discoloration occurs, and the addition of 10% sodium hydroxide solution results in a dark blue light red color.
Standard:
The standard for FAST SULPHON BLACK F includes the following ratings for various fastness properties:
Light Fastness: ISO 4, AATCC 4-5
Soaping: ISO 4, AATCC 3
Perspiration Fastness: ISO 4, AATCC 3
Oxygen Bleaching: ISO 3-4
Fastness to Seawater: ISO 4
These ratings indicate the performance and reliability of FAST SULPHON BLACK F in different conditions and applications.
Preparation
4-Aminonaphthalene-1-sulfonic acid diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, its product to diazo, and Naphthalen-2-ol coupling.
Standard
Light Fastness
Fading
Stain
ISO
4
AATCC
7
Check Digit Verification of cas no
The CAS Registry Mumber 3682-47-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,8 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3682-47:
(6*3)+(5*6)+(4*8)+(3*2)+(2*4)+(1*7)=101
101 % 10 = 1
So 3682-47-1 is a valid CAS Registry Number.
InChI:InChI=1/C30H20N4O11S3/c35-24-11-9-16-5-1-2-6-19(16)28(24)33-32-23-15-18(46(37,38)39)13-17-14-26(48(43,44)45)29(30(36)27(17)23)34-31-22-10-12-25(47(40,41)42)21-8-4-3-7-20(21)22/h1-15,31-32H,(H,37,38,39)(H,40,41,42)(H,43,44,45)/b33-28-,34-29-
