94% Textile Dye Factory Spot Supply Indigo Blue Powder Granular

94% textile dye factory spot supply indigo blue powder granular
Specification:
IndigoProducts nameIndigo(C.I Vat Blue 1#)constitutional formulamolecular formulaC16H10N2O2molecular weight262natureThis 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.test conditionHG/T 2750-1996appearancedark-blue uniform powder or granule(1)original powdercontent%≥94.0particbe size(60mesh)%≥96.0moisture%≤1.0Fe3+<200PPM(2)pelletingcontent%≥94.0moisture%≤1.0Fe3+<200PPM(3)Promotercontent%≥93.0moisture%≤0.8Fe3+<200PPMuseReducing indigo to be dyestuff, which can be mainly used in dyeing cotton fabric, and otherwise can be made to 5.5'-7.7'- tetrabromo indigo, and then be used in biochemical and indicators, etc.
1. C.I. NO. 73000
2. CAS NO. 482-89-3
3. APPEARANCE: BLUE POWDER OR GRANULAR
4. STRENGTH: 80%~94%
5. MOISTURE:about0.45%
6. DETERMEINE:103PPM~112PPM
7.MF: C16H10N2O2
8. EINECS No.: 207-586-9
9. Type: Vat Dye
10.HSCoding:32041510
11.Relativemolecularweight:262.27(accordingtotheInternationalmolecularweightof1983
Use:Itismainlyusedtodyecottonfibre.Thepop"cowboy"clothesmostlyaremadebyindigoblue
dyinglongitudinalyarnandwhiteyarninterweaving;Itcanbeusedwithsulfuratedcoloringmatter;
Alsowecangetindigowhite,bromizedindigobluefromit,theyarewellusedinfoodcoloringmatter,
biochemistryetc.
Packages:25KG Plastic-Woven Bag with double polyester liner
Storage & Transportation:The 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.