China Textile Auxiliary Agent Indigo Blue Vat 94% Granular Indigo Blue Dyes Price 

1.Product details
Product name:Indigo Blue
Colour Index: C.I. Vat Blue 1
Molecular formula: C16H10N2O2
Molecular weight:262
HS Coding: 32041510
Appearance:dark-blue uniform powder or granule
2. Simple introduction
This product is dark-blue uniform powdery or granular. It cannot be dissolved in water and common organic solvents such as ethanol and aether, but can be dissolved in hot aniline and melt phthalic anhydride. Its melting point in the closed capillary is 390-392°C, and it begins sublimating slowly at 290°C. It has very good sunburn endurance and application performance.
3.Vat DyesVat Yellow1,2,33Vat Orange1,2,7,9,11,15Vat Red1,10,13,14,15,29,31,41Shaft Vat Violet1Vat Blue1,4,6,18,20Vat Green1,3,8,13Vat Brown1,3,68,72Vat Black8,16,25,27,29
4.SpcificationCas No.482-89-3Colour IndexVat Blue 1AppearanceDark blue,Powder,GranularColour lightSimilar as the standard sampleContent≥93.0%,94.0%Moisture content≤1.0%StrengthEqual to 100 perHand Tools cent of the standard samplePH Range9.5-10.5Content of ferric ions≤200PPMPropertiesIt is insoluble iDemonstrational & Teaching Utensil n water an
5.Application
It is mainly used to dye cotton fibre .The pop "cowboy" clothes mostly are made by indigo blue dying longitudinal yarn and white yarn interweaving;It can be used with sulfurated coloring matter;Also we can get indigo white,bromized indigo blue from it,they are well used in food coloring matter,biochemistrTelecommunication & Broadcasting y etc.
6. Packing
25KG/BAG with inner aluminum foil bags, outer kraft paper bags or according to client's requirement7.Storage
TMeter for Electricity he product must be stored in shade, dry &well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.