8003-57-4
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Basic information
- Product Name: Direct Black 56
- Synonyms: Direct Black 56;Direct Fast Greay RLN;C.I. Direct black 56;C.I.Direct Black 56;Pyrazol Grey RLN;Saturn Grey LRN;Solar Grey 2R;Direct black 56 (C.I. 34170)
- CAS NO:8003-57-4
- Molecular Formula: C36H22N7Na3O10S3
- Molecular Weight: 877.76509
- EINECS: N/A
- Product Categories: N/A
- Mol File: 8003-57-4.mol
- Article Data: 0
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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: Direct Black 56(CAS DataBase Reference)
- NIST Chemistry Reference: Direct Black 56(8003-57-4)
- EPA Substance Registry System: Direct Black 56(8003-57-4)
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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: 8003-57-4(Hazardous Substances Data)
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8003-57-4 Usage
Preparation
aniline diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.Properties and Applications
red light grey. Gray powder. Soluble in water for dark purple, not soluble in alcohol. The strong sulfuric acid in the green light for gray blue, diluted into purple. The dye solution to join strong hydrochloric acid have precipitation of dark; Add thick, hydrogen oxidation solution have dark purple precipitation. Cellulose fiber of dyeing, the dye well after sex is good, in the 80 ℃ temperature when the biggest affinity. Discharge sex is good, hard to sensitive. For the red light gray color. Dye in bath of copper, iron ion colored light basic unchanged, the SDC classification for a class B. Neutral and alkaline white are 5 levels. Mainly used for cotton, linen, silk, cellulose fiber fabrics such as glue the dyeing. Can also be used for leather, paper all the dyeing. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3 4 4-5 3 2 AATCC 3 5 5-6 3 4Standard
Acid ResistanceFading
StainISO
3AATCC
3Check Digit Verification of cas no
The CAS Registry Mumber 8003-57-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,0 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.Calculate Digit Verification of CAS Registry Number 8003-57:
(6*8)+(5*0)+(4*0)+(3*3)+(2*5)+(1*7)=74
74 % 10 = 4
So 8003-57-4 is a valid CAS Registry Number.
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Direct Black 56
