Vat Blue 19 is a red light navy blue dye that is used for cotton fabric dyeing. It has a high direct sex for cotton and can be used for cotton direct printing, resist printing, and discharge printing. It can also be used for dyeing viscose and silk fabrics.

1328-18-3

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Basic information
1. Product Name: Vat Blue 19
2. Synonyms: Vat Blue 19;Anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione, bromo derivs.;C.I.VATBLUE19;Vat blue 19 (C.I. 59805);Navy Blue BF;C.I.59805;Indanthrene Navy Blue BF;Palanthrene Navy Blue BF
3. CAS NO:1328-18-3
4. Molecular Formula: MW:
5. Molecular Weight: 0
6. EINECS: 215-516-3
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: 1.65[at 20℃]
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. Water Solubility: 0.004ng/L at 25℃
10. CAS DataBase Reference: Vat Blue 19(CAS DataBase Reference)
11. NIST Chemistry Reference: Vat Blue 19(1328-18-3)
12. EPA Substance Registry System: Vat Blue 19(1328-18-3)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 1328-18-3(Hazardous Substances Data)

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Uses

Used in Textile Industry:
Vat Blue 19 is used as a dye for cotton, viscose, and silk fabrics for dyeing. It provides a red light navy blue color and has a high direct sex for cotton, making it suitable for cotton direct printing, resist printing, and discharge printing.
Standard:
Vat Blue 19 has the following standard ratings:
Ironing Fastness: 4-5
Chlorine bleach: 4-5
Light Fastness: 7
Mercerized: 3
Oxygen bleach: 4
Soaping: 4-5
Fading: 4-5
Stain: 4-5
ISO: 4-5

Preparation

Dinaphtho[1,2,3-cd:3′,2′,1′-lm]perylene-5,10-dione in Nitrobenzene or Chlorosulfonic acid, in fuming sulfuric acid and sulfur presence bromination.

Standard

Ironing Fastness

Fading

Stain

ISO

4-5

Check Digit Verification of cas no

The CAS Registry Mumber 1328-18-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,2 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1328-18:
(6*1)+(5*3)+(4*2)+(3*8)+(2*1)+(1*8)=63
63 % 10 = 3
So 1328-18-3 is a valid CAS Registry Number.

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