VAT BLUE 4

Synonyms. Vat Blue 4; 6,15-Dihydro-5,9,14,18-anthrazinetetrone; C.I. Pigment Blue 60; C.I. 69800; Indanthrene; Anthraquinone Blue; Benzadone Blue RS; Bleu solanthrene; Blue O; Blue anthraquinone pigment; C.I. 1106; Indanthrene Blue; Indanthrone; L-Blau 1; Lake Fast Blue BS; Pigment Blue Anthraquinone; Pigment Blue Anthraquinone V; Vat Blue O; Vat Fast Blue R; Indanthrone blue; Vat Blue RSN;

VAT BLUE 4

 

PRODUCT IDENTIFICATION

CAS RN

81-77-6

EINECS RN

 201-375-5

FORMULA

 C28H14N2O4

MOLE WEIGHT

 442.42

H.S CODE

  

SMILES

 c12c3c([nH]c4c5c(c(c6ccccc6c5=O)=O)ccc4[nH]3)ccc1c (c1ccc cc1c2=O)=O

CLASSIFICATION

 Anthraquinone

EXTRA NOTES

  

OTHER RN

11098-09-2, 11129-81-0, 39280-72-3, 50814-33-0, 50926-10-8, 67418-33-1, 88507-35-1, 111116-33-7, 113255-69-9, 128281-88-9, 192588-24-2, 790240-41-4

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE.

powder

MELTING POINT

485 C

BOILING POINT

 

DENSITY

1.6

SOLUBILITY IN WATER

3.24E-05 mg/l

SOLVENT SOLUBILITY  

VAPOR DENSITY

 

log P(octanol-water)

 7.73

VAPOR PRESSURE

  

AUTOIGNITION TEMP

  
pH

 

REFRACTIVE INDEX

 

FLASH POINT

 

 
STABILITY AND REACTIVITY
STABILITY Stable under normal conditions.

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 2,Flammability:1, Reactivity: 0

 

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Indanthrone blue

Google Scholar Search - Indanthrone blue

Drug Information Portal (U.S. National Library of Medicine) - Indanthrone blue

PubChem Compound Summary - Solvent Yellow 33

KEGG (Kyoto Encyclopedia of Genes and Genomes) - Indanthrone blue

http://www.ebi.ac.uk/ - Indanthrone blue

http://www.ncbi.nlm.nih.gov/ - Indanthrone blue

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank - Indanthrone blue

http://www.colorantshistory.org/
Dowanone Blue BCS was indanthrone, discovered by the German chemist Rene Bohn in 1901. This was the first vat dye of the anthraquinone series. It can be synthesized by the fusion of 2-aminoanthraquinoe, with a mixture of sodium and potassium hydroxides and an oxidizing agent such as sodium nitrite. Indanthrone is less important today because of its sensitivity to bleaching. Dowanone Blue GCD was the dichloro derivatve of indanthrone and had a greener shade and better resistance to bleach. Dowanone Yellow GN was flavanthrone, also discovered by Bohn in the early 1900s. Bohn fused 2-aminoanthraquinone with potassium hydroxide to obtain the dye. Due to poor lightfastness, this dye was mainly used with blue vat dyes to obtain green shades.The Ciba dye range produced at Midland included halogenated indigo and thioindigo derivatives: Ciba Scarlet G was made by condensing thioindoxyl (oxythionaphthene) with acenaphthenequinone: Bromination of Ciba Scarlet G yielded Ciba Red R.

http://www1.eere.energy.gov/
We have been investigating the use of organic pigments as semiconductor photocatalysts in a dual stage water decomposition scheme that would ultimately use solar energy to generate hydrogen from water. We have shown that by employing a combination of simple screening procedures on prospective compounds, such as semiempirical molecular orbital calculations and thin film voltammetry, we can quickly determine whether a compound will be capable of O2 or H2 evolution. A number of fused heteroaromatic compounds were identified as possible photocatalysts for O2 evolution; we subsequently verified that various perylene, indanthrone, and quinacridone compounds do indeed evolve O2 under Xe lamp illumination. A number of phthalocyanine compounds were shown to evolve H2. Using a perylene diimide derivative as the O2-evolving photocatalyst and copper phthalocyanine as the H2-evolving photocatalyst, respective oxidative and reductive water decomposition was observed using the same IO3 -/I- redox electrolyte, demonstrating that continuous closed cycle dual bed photocatalytic water-splitting is feasible. 

 

SALES SPECIFICATION

APPEARANCE

blue powder or granular

STRENGTH

100.0% ± 3.0%

Fe

200ppm max

FASTNESS

Light (3-4), Wash (4)

MOISTURE

1.0% max

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

Not known

HAZARD CLASS

  
PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

May be harmful if inhaled. May cause respiratory tract irritation. May be harmful if absorbed through skin. May cause skin irritation. May cause eye irritation.May be harmful if swallowed.

GHS

  

SIGNAL WORD

Warning

PICTOGRAMS

HAZARD STATEMENTS

H440-H413

P STATEMENTS

P273

 

PACKING