china Factory supply H acid; 1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid cas 90-20-0 chemical high quality
Factory supply H acid; 1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid cas 90-20-0 with high quality
1,Quick details for 1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid
|Product name||1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid|
|1-AMINO-8-NAPHTHOL-3,6-DISULFONIC ACID;4-AMINO-5-HYDROXY-2,7-NAPTHALENEDISULFONIC ACID;4-AMINO-5-HYDROXY-2,7-NAPHTHALENEDISULFONIC ACID;8-AMINO-1-NAPHTHOL-3,6-DISULFONIC ACID;1-Amino-8-naphthol-3,6-disulphonicacid;kyselina8-amino-1-naftol-3,6-disulfonova;kyselinah;4-amino-5-hydroxynaphthalene-2,7-disulphonic acid|
|Apperance||White to grey crystalline powder|
2,Useage for 1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid
Important intermediates of nitrogen dyes
3,storage for 1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid
In a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.
Appearance: Grey-white powder
Content (341 ) : 85% min.
Content (319 ) : 80% min.
Chromotropic acid: 0.5% max.
W acid: 0.15%max.
T acid: 0.25%max.
K acid: 0.05%max.
Total organic insoluble matter: 1.5% max.
Alkali insoluble matter: 0.1% max.
Packing: 25kg /bag
CAS: 90-20-0 EINECS: 201-975-7
|Appearance||White crystal powder|
The disodium salt and caustic soda concentrated solution of Koch acid (1-naphthylamine-3 mine6 and 8-trisulfonic acid) were heated and melted in a pressure heater at about 180-190 ℃, then the melts were dissolved in water and then acidified and precipitated.Slightly soluble in cold water, soluble in alkaline solutions such as soda ash and caustic soda.
With ferric chloride solution was brown red. The acid salt has a bluish red fluorescence, and becomes reddish purple after adding alkali. H acid products are generally paste or powder.
H-acid monosodium salt is mainly used to produce acidic, direct and reactive dyes, such as acid magenta 6B, acid red G, acid black 10B, direct black, reactive brilliant red K-2BP, reactive purple K-3R, active soluble blue More than 90 kinds, these dyes are used for dyeing wool and cotton fabrics. Can also be used to produce drugs.
1.More than 10 years chemical exporting experience
We have produced chemical more than fifteen years., 80% products are for export .
More than 10 years chemical exporting experience. Good and stabilized factory price.
2.Strict quality control system
We has passed through the ISO9001:2015 Quality System Certificate, we have strict quality control system
Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .