Direct Dub 19

Khoom Lub Npe: Direct Black 19 100%
Molecular Structure: Multi-azo class

Molecular Formula: C ₃₄H ₂₇N ₁₃Na ₂O ₇S ₂
Molecular Luj: 839.77
CAS Registry Number: 6428-31-5
Manufacturing Methods: 4-Nitrobenzenamine (2 Moore) diazo, one in acid tej yam kev mob, ib tug nyob rau hauv alkaline tej yam kev mob thiab 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid (1 Moore) coupling, thiab ces yuav cov nitro txo, diazotization, dua nrog Benzene-1,3-diamine (2 Moore) ua ke.
Khoom thiab Daim Ntawv Thov: ntsuab thiab dub.Cov hmoov dub.Soluble hauv dej rau lub teeb ntsuab dub, solubility ntawm 100 g / L (80 ℃), me ntsis soluble hauv ethanol thiab acetone.Lub zog sulfuric acid nyob rau hauv lub teeb ntsuab rau dub, dilute liab tom qab nag lossis daus dub;Nyob rau hauv nitric acid rau tsaus xim av.Dyes thiab microstructure ntawm sulfuric acid daws 10% liab;Ntxiv cov tshuaj sodium hydroxide tuab rau lub teeb ntsuab xiav.Copper ions hauv dyeing xim ntxoov ntsuab, hlau ion hloov me ntsis xim.Siv rau hauv viscose ntawm dyeing thiab luam ntawv.Hauv cov paj rwb knitwear, pam vov, flannelette, txhob lo lo ntxhuav, viscose, txhob lo lo ntxhuav uas cov ntaub, ntaub plaub / viscose fiber blend fabrics siv tau.Kuj tseem siv tau rau hauv tawv, ntawv thiab electrochemical aluminium xim.
Cov khoom txee: Levacell Black PN; Pergasol Black G; Hnub Ci Dub G; Sirius Dub G; Baycolor Dub B
Siv: rau ntaub plaub / viscose fiber ntau cov ntaub siv tau.Kuj tseem siv tau rau hauv tawv, ntawv thiab electrochemical aluminium xim.
Ntim: 25KG Carton