INDIGO (C.I. VAT BLUE 1)

C.I. Vat Black 25 [Vat Olive T] CAS RN.:4395-53-3 COLOR INDEX:69525 FORMULA:C45H22N2O5 STRENGTH:100.0% ± 3.0% U$12/kg CFR by sea for 500kgs U$95/kg To door by EMS for 10kgs C.I. Vat Blue 1 [Indigo Blue] CAS RN.:482-89-3 COLOR INDEX:73000 FORMULA:C16H10N2O2 H.S CODE:3204.15.1000 CLASS:Indoline STRENGTH:100.0% ± 3.0% U$16/kg CFR by sea for 500kgs U$140/kg To door by EMS for 10kgs C.I. Vat Blue 4 [Vat Blue RSN] CAS RN.:81-77-6 COLOR INDEX:69800 FORMULA:C28H14N2O4 CLASS:Anthraquinone STRENGTH:100.0% ± 3.0% U$18/kg CFR by sea for 500kgs U$160/kg To door by EMS for 10kgs C.I. Vat Brown 1 [Vat Brown BR] CAS RN.:2475-33-4 COLOR INDEX:70800, 70802 FORMULA:C42H18N2O6 STRENGTH:100.0% ± 3.0% U$18.5/kg CFR by sea for 250kgs U$165/kg To door by EMS for 10kgs C.I. Vat Green 13 [Vat Green MW] CAS RN.:57456-28-7 FORMULA:C46H21IN2O5 STRENGTH:100.0% ± 3.0% U$25/kg CFR by sea for 250kgs U$180/kg To door by EMS for 10kgs C.I. Vat Orange 7 [Vat Orange GR] CAS RN.:4424-06-0 COLOR INDEX:71105 FORMULA:C26H12N4O2 H.S CODE:3204.15.9000 STRENGTH:100.0% ± 3.0% U$35/kg CFR by sea for 250kgs U$210/kg To door by EMS for 10kgs C.I. Vat Orange 9 [Vat Orange G] CAS RN.:128-70-1 COLOR INDEX:59700 FORMULA:C30H14O2 CLASS:Pyranthrenedione STRENGTH:100.0% ± 3.0% U$28/kg CFR by sea for 250kgs U$205/kg To door by EMS for 10kgs C.I. Vat Red 1 [Vat Pink R] CAS RN.:2379-74-0 COLOR INDEX:73360 FORMULA:C18H10Cl2O2S2 H.S CODE:3822.00.5090 STRENGTH:100.0% ± 3.0% U$40/kg CFR by sea for 200kgs U$240/kg To door by EMS for 5kgs C.I. Vat Red 13 [Vat Red 6B] CAS RN.:4203-77-4 COLOR INDEX:70320 FORMULA:C32H22N4O2 STRENGTH:100.0% ± 3.0% U$18.5/kg CFR by sea for 250kgs U$165/kg To door by EMS for 10kgs C.I. Vat Red 15 [Indanthrene Bordeaux] CAS RN.:4216-02-8 COLOR INDEX:71100 FORMULA:C26H12N4O2 STRENGTH:100.0% ± 3.0% U$18/kg CFR by sea for 250kgs U$160/kg To door by EMS for 10kgs C.I. Vat Red 31 [Vat Red F3B] CAS RN.:12227-47-3 COLOR INDEX:60030 FORMULA:C30H16N4O5 CLASS:Anthraquinone STRENGTH:100.0% ± 3.0% U$25/kg CFR by sea for 250kgs U$190/kg To door by EMS for 10kgs C.I. Vat Violet 1 [Vat Violet 2R] CAS RN.:1324-55-6 COLOR INDEX:60010 FORMULA:C34H16O2 H.S CODE:3822.00.5090 CLASS:Anthraquinone STRENGTH:100.0% ± 3.0% U$26/kg CFR by sea for 250kgs U$190/kg To door by EMS for 10kgs C.I. Vat Violet 3 [Anthramar Magenta B] CAS RN.:2379-75-1 COLOR INDEX:73395 FORMULA:C20H14Cl2O2S2 STRENGTH:100.0% ± 3.0% U$28/kg CFR by sea for 250kgs U$205/kg To door by EMS for 10kgs C.I. Vat Yellow 2 [Indanthrene Yellow GCN] CAS RN.:129-09-9 COLOR INDEX:67300 FORMULA:C28H14N2O2S2 OIL ABSORPTION:30-35 ml/100g U$28/kg CFR by sea for 250kgs U$210/kg To door by EMS for 10kgs C.I. Vat Yellow 33 [Vat Yellow F3GC] CAS RN.:12227-50-8 COLOR INDEX:65429 FORMULA:C54H32N4O6 STRENGTH:100.0% ± 3.0% U$55/kg CFR by sea for 150kgs U$350/kg To door by EMS for 5kgs

INDIGO
PRODUCT IDENTIFICATION
CAS NO.	482-89-3
EINECS NO.	207-586-9
FORMULA	C₁₆H₁₀N₂O₂
MOL WT.	262.26
H.S. CODE	3204.15.1000
TOXICITY	Mouse LD50 (Oral): > 32gm/kg
SYNONYMS	Indigo Blue; Indigotin; C.I. Vat Blue 1; C.I. 73000; C.I. Pigment Blue 66;
[delta(2,2')-Biindoline]-3,3'-dione; delta(2,2')Bipseudoindoxyl; 2-(1,3-Dihydro-3-oxo-2H-indol- 2-ylidene)-1, 2-dihydro -3H-indol-3-one; 2,2'-Bi(2,3-dihydro-3-oxoindolylidene); 2;2,3,2',3'-Tetrahydro-3,3'-dioxo-2,2'- biindolylidene; 2,3,2',3'-Tetrahydro-3,3'-dioxo-2,2'- biindolylidene; Other RN: 11129-41-2; 12000-74-7; 12626-73-2; 93660-98-1; 136797-30-3; 210488-46-3; 908005-94-7;
SMILES	C1(=C2\C(c3ccccc3N2)=O)\C(c2ccccc2N1)=O
CLASSIFICATION	Coloring Agent, Redox Indicators, Stains and Dyes
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	Dark blue powder or granule
MELTING POINT	390 - 392 C (Decomposes)
BOILING POINT
SPECIFIC GRAVITY
SOLUBILITY IN WATER	Practically insoluble (13.4 mg/l), Practically insoluble in dilute acids, alcohol and ether. Soluble in conc. H2SO4, aniline, nitrobenzene, chloroform and glacial acetic acid.
AUTOIGNITION
pH
VAPOR DENSITY
log Pow	3.72 (Octanol-water)
VAPOR PRESSURE	9.00E-13 (mmHg at 25 C)
HENRY'S LAW	5.01E-14 (atm-m3/mole at 25 C)
OH RATE	8.26E-11 (cm3/molecule-sec at 25 C Atmospheric )
NFPA RATINGS	Health Hazard: 2, Fire: 0, Reactivity Hazard: 0
REFRACTIVE INDEX
FLASH POINT
STABILITY	Stable under ordinary conditions
GENERAL DESCRIPTION & EXTERNAL LINKS
Indigo is a component of blue vat dye naturally obtained from plants like genus Indigofera and Isatis tinctoria. It is now produced synthetically. The key functional group in indigo is C₆H₄(NH)C(O=)C=, called indogen. It is insoluble in water but soluble in hot aniline and hot chloroform. It become water soluble and colorless form when reduced in the presence of an alkali, which makes easy to dye. Subsequent oxidation process is required to get the target color. Dying is the oxidation process of the fabric. After the fabric is dyed, the dye revert to water insoluble form. There is a solubilized water-soluble vat dye which does not need the presence of alkali, and thus can be applied to dye animal fibres like wool and silk. Vat dyes are applied particularly to cotton and and rayon where high wash and boil fastness required. Indigo is used in mainly for dyeing heavy blue to grayish purple blue shades for work clothes. It is also used in printing inks and paints. Examples of vat dyes are indigo, thioindigo, indanthrone. Wikipedia Linking: http://en.wikipedia.org/wiki/Indigo, http://en.wikipedia.org/wiki/Indigo_dye http://www.madehow.com/ Indigo, or indigotin, is a dyestuff originally extracted from the varieties of the indigo and woad plants. Indigo was known throughout the ancient world for its ability to color fabrics a deep blue. Egyptian artifacts suggest that indigo was employed as early as 1600 B.C. and it has been found in Africa, India, Indonesia, and China. The dye imparts a brilliant blue hue to fabric. In the dying process, cotton and linen threads are usually soaked and dried 15-20 times. By comparison, silk threads must be died over 40 times. After dying, the yarn may be sun dried to deepen the color. Indigo is unique in its ability to impart surface color while only partially penetrating fibers. When yarn died with indigo is untwisted, it can be seen that the inner layers remain uncolored. The dye also fades to give a characteristic wom look and for this reason it is commonly used to color denim. Originally extracted from plants, today indigo is synthetically produced on an industrial scale..... http://faculty.bennington.edu/ Indigo is a vat dye, meaning that the colorant itself (that is, pure indigo) is not soluble in water and therefore cannot be used directly to color fabric. This is because a dye must penetrate the fibers of a material in order to produce an effective color; they cannot be simply applied to the surface like a paint. So to use indigo to dye fabrics, it must in a converted to a compound that readily dissolves in water. In traditional dyeing procedures, the reaction to produce the soluble form of the dye took place in open vats, hence the term, vat dye....
SALES SPECIFICATION
APPEARANCE	Dark blue powder (or granule)
CONTENT	94.0% min
RESIDUE ON IGNITION	1.0% max
MOISTURE	0.8% max
IRON	0.5% max
PARTICLE SIZE	96.0% min (60 mesh)
TRANSPORTATION
PACKING
HAZARD CLASS	3 (6.1)
UN NO.	3079
SAFETY INFORMATION
HAZARD OVERVIEW	Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
GHS
SIGNAL WORD	Warning
PICTOGRAMS
HAZARD STATEMENTS	H315-H319-H335
P STATEMENTS	P261-P305 + P351 + P338
EC DIRECTIVES
HAZARD CODES
RISK PHRASES	36/37/38
SAFETY PHRASES	26-36