Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Fluorescent Brightener 32,C.I.40620

Molecular Structure: Stilbenes

C.I.Fluorescent Brightener 32,C.I.40620,CAS 1264-32-0,786.71,C32H24N10Na2O8S2,Fluorescent Brightener BF,Fluorwhitehao BC,Fluorwhitehao VBL

Molecular Formula:C₃₂H₂₄N₁₀Na₂O₈S₂

Molecular Weight: 786.71

CAS Registry Number:1264-32-0

Manufacturing Methods :at 0 ℃ will 2,4,6-Trichloro-1,3,5-triazine (2 Moore) acetone solution and sodium carbonate solution at the same time slowly add people to 1,2-Bis(4-amino-2-sulfophenyl)ethene(1 Moore) in aqueous, strictly controlling reaction conditions, do not make reaction medium is alkaline. Then reaction product in 12 ℃ with aniline (2 Moore) reaction, keep reaction medium for acid. At last we use the sodium carbonate reaction medium for alkaline, and heated to 97 ℃, with hydroxyl replace the rest of the chlorine atom.

Properties and Applications:blue light. Soluble in water have purple fluorescent. In neutral or weak acid dye bath used in cotton, protein fiber and nylon, and can also be used to discharge adhesive and insurance powder in bleaching liquid. Not only can be used for pulp can also be used to paper coating, coating or dip. The solution is sensitive to light.

List of Suppliers:

Fluorescent Brightener BF

Fluorwhitehao BC (Sinochem Tianjin Imp Exp Corp)

Fluorwhitehao BF (Sinochem Tianjin Imp Exp Corp)

Fluorwhitehao BL (Sinochem Tianjin Imp Exp Corp)

Fluorwhitehao VBL (Sinochem Tianjin Imp Exp Corp)

Hakkol OW-11( Kaseihin Kogyo Kyokai )

Hakkol PRL( Kaseihin Kogyo Kyokai )