Acid Yellow\Red\Blue\Black

1-amino-2-naphthol-4-sulfonic acid
Chemical name:
1-amino-2-naphthol-4-sulfonic acid
CAS NO. [116-63-2]
Structure formula:
Properties:
(1)Yellow humidity product, slightly soluble in water. Recrystallization will be produced in saturation solution, easily soluble in alkali liquor.
(2)The product easily burns, explosion will happen when heating.
Specification:
Appearance: yellow humidity product
Content: ≥75% ≥70%
Insoluble matter： ≤0.1%


WEAK ACID DARK BLUE 5R
C.I.ACID BLUE 113
1.Structure formula

2.Molecule formula: C32H23N5O6S2
3.Molecule weight: 637.65
4.CAS No 3351-05-1
Major usage: used for dyeing fibres of wool, silk and polyamide fibre; Also used with direct dye for dyeing mixed fabrics of wool /viscose rayon fibre in a same bath ,for printing on fabrics of wool, silk, polyamide and viscose rayon fibre, and coloring leather.
Dyeing fastness on wool:
lightperspirationsoaping
6~755

Tianjin Sanhuan Chemical Co.Ltd is invested by Tianjin Hongcheng Group Co.Ltd. We makes dyes and intermediates. The total assets of the company is REB 80 million. The total area of land is 54000 square kilometers, the construction areais 18000 square kilometers.We have rich technical force, advanced technology and machinery and modern workshop designing rational. Our company has passed the certification of ISO 9002 Quality Guarantee System and Safety Guarantee System and Environment Guarantee System and was awarded the honorable title of famous brand.The annual yield of dyes and intermediates reaches to 1000 tons. We have five series and more than 30 kinds of products including basic dyes, acid dyes, acid mordant dyes, direct dyes and so on. The 80% of our products are exported abroad and have been well received and appreciated by customers both at home and abroad.We warmly welcome customers from home and abroad coming to Tianjin to talk business over with us.