Vat Yellow 4
- Product Name
- Vat Yellow 4
- CAS No.
- 128-66-5
- Chemical Name
- Vat Yellow 4
- Synonyms
- NSC30987;C.I.59100;NSC 30987;NSC-30987;C.I.VATYELLOW4;Tinon Golden Yellow GK;Anthravat golden yellow;Amanthrene golden yellow;Vat yellow 4 (C.I. 59100);Arlanthrene golden yellow
- CBNumber
- CB0874915
- Molecular Formula
- C24H12O2
- Formula Weight
- 332.35
- MOL File
- 128-66-5.mol
Vat Yellow 4 Property
- Melting point:
- 385 °C
- Boiling point:
- 429.48°C (rough estimate)
- Density
- 1.1459 (rough estimate)
- refractive index
- 1.4891 (estimate)
- Stability:
- Stable. Combustible. Incompatible with strong oxidizing agents.
- CAS DataBase Reference
- 128-66-5
- IARC
- 3 (Vol. 48) 1990
- EPA Substance Registry System
- C.I. Vat Yellow 4 (128-66-5)
Safety
- Hazardous Substances Data
- 128-66-5(Hazardous Substances Data)
N-Bromosuccinimide Price
- Product number
- V099300
- Product name
- VatYellow4
- Packaging
- 50mg
- Price
- $950
- Updated
- 2021/12/16
- Product number
- DYE0000696
- Product name
- VAT YELLOW 4
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $503.67
- Updated
- 2021/12/16
Vat Yellow 4 Chemical Properties,Usage,Production
Chemical Properties
viscous orange liquid
Uses
Vat Yellow 4 is a commercial dye used in textiles. Polyaromatic hydrocarbon with potential carcinogenic activity.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.
Definition
ChEBI: Vat Yellow 4 is an ortho- and peri-fused polycyclic arene.
Preparation
(a) 3-Benzoylbenzanthrone?and Aluminium chloride and antioxidant for the closed-loop response; (b) 1,5-Dibenzoyl-2-naphthaene?in Aluminium chloride and sodium chloride were under existing closed-loop response.
General Description
Viscous orange liquid. Used for coloring of cotton, wool and cellulose acetate.
Air & Water Reactions
Water soluble.
Reactivity Profile
Vat Yellow 4 reacts very readily with reducing agents to give a colorless or nearly colorless product. Subsequent oxidation then restores the color.
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition Vat Yellow 4 emits acrid smoke and irritating fumes.
Fire Hazard
Vat Yellow 4 is probably combustible.
Synthesis
7,14-Dibenzpyrenequinone, Indanthren Golden Yellow GK, is prepared from 1,5-dibenzoylnaphthalene (itself prepared from naphthalene with benzoyl chloride – AlCl3) by fusion with AlCl3-NaCl at 160 ?C and aeration with oxygen , , .
Properties and Applications
red light yellow. Yellow brown powder. Soluble in nitrobenzene, four hydrogenated naphthalene and dimethyl benzene, slightly soluble in acetone, ethanol, benzene, chloroform, o-chlorophenol, Pyridine and toluene. The strong sulfuric acid to red light purple, orange after diluted precipitation, in alkaline insurance powder is in stock for purplish red color; In the acidic insurance powder also in stock for golden brown. Can be used for the discharge printing of cotton, mainly used in the winter sun often dark cotton print, also suitable for silk and polyamide fiber dyeing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4-5 | 4-5 | 5-6 | 5 | 4-5 | 3-4 | 4 |
| AATCC | 5 | 5 | 4-5 | 5 | 4 | ||