Product Specifications
Product Description
1. Chemical name: 4, 4'-Diaminostibene
2, 2'-disulfonic acid
2. Commodity name: DSD Acid
3. Molecular Formula: C14H14N2O6S2
4. Molecular Weight: 370.4
5. Physical and chemical properties:
1) Light yellow paste or powder, soluble in alcohol and either; Insoluble in water, readily soluble in alkali
2) Easily be oxidized to red in air, it has properties of aromatic acid and aromatic amine
Items Specifications
(1) Appearance Light yellow powder
(2) Contents 95%min
(3) Gardner color for regular product; 9 max; For refined; Product 6 max
(4) Insoluble in Alkali 0.1%max
(5) Benzyl value 0.25%max
Cangzhou Huayu Chemical Co.,Ltd., located 4kms south of Dongguang County, Hebei, covers an area of 820 mu in which only 300 mu are being utilized now, leaving the rest part for further development. With the state's 104th highway and Jin-pu railway on its west side, Xingang port 240kms on its north, the company enjoys convenient transportation conditions.
With fixed assets of 80 million yuan, the company had 610 staff members and workers, including 336 of various engineers and specialists.
The company's production capacity of leading products are:
Dsd acld(4, 4-diaminostllbene-2, 2disulfonic acid) 6000t/year
Ansd acld(4-nitro-4'-aminostilbene-2, 2-disulfonic acid) 1000t/year
Dinitro acld(4, 4-dinitrostilbene-2, 2disulfonic acid) 4000t/year
P-nitro toluene-o-sulfonic acid 2500t/year.
Authorized to do import and export business,the company has exported 90% of its products to America, Latin America, Europe, Japan and Southeast Asia gaining credits and prestige from domestic and overseas customers on stable quality, advanced process and after sale service.
