• head_banner_01

Offer Direct Black EX At Good Price

Short Description:

Product Name:DIRECT BLACK EX
C.I.NO. Direct Black 38
CAS NO.1937-37-7
EINECS:217-710-3
Molecular formula:C34H27N9O7S2
Molecular weight:737.7643
InChI:
InChI=1/C34H27N9O7S2/c35-22-10-15-27(26(36)18-22)41-38-24-11-6-19(7-12-24)20-8-13-25(14-9-20)40-42-32-28(51(45,46)47)16-21-17-29(52(48,49)50)33(34(44)30(21)31(32)37)43-39-23-4-2-1-3-5-23/h1-18,39H,35-37H2,(H,45,46,47)(H,48,49,50)/b41-38+,42-40+,43-33-

Product Detail

Product Tags

Synonyms:disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate;C.I. 30235; C.I. Direct Black 38; C.I. Direct Black 38, disodium salt; C.I. Direct Black 38, disodium salt (8CI); Azo black; disodium (3Z)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate; disodium (3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate; (3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonic acid

Appearance:Black powder.
Density:1.61g/cm3

Application:
It is mainly used for dyeing cellulose fibers and fabrics such as cotton, hemp and viscose, as well as silk, nylon and their blended fabrics. It can also be used for chemical Book dyeing of leather, biology and wood, coloring of plastics and raw materials for red ink. Direct black BN is a common black dye, which is mostly used alone for black, and often combined with brown to form various coffee colors.
Quality guarantee period: 24 months.
Packing: 25kgs iron drum.
Storage:Store in a cool and ventilated room and prevent moisture and heat.


  • Previous:
  • Next:

  • Write your message here and send it to us