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

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.

Description

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.

Application

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.

Notes

mit-ivy

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

3.Supply sample

Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .