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Chemicals Division, Oriental Int'l Enterprises Co., Ltd.

Preponderant Dyestuff for Different Uses

Preponderant Intermediates

Chemicals Division, Oriental Int'l Enterprises Co., Ltd.
[China]

Address:
ROOM 104, Unit 71, 995 JUFENG ROAD, PUDONG NEWLY DISTRICT Shanghai Shanghai 201208 China

Phone:
86-21-65174500

Contact name:
Andrew Lu

Chemicals Division, Oriental Int'l Enterprises Co., Ltd.

Preponderant Intermediates

	DSD Acid

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DSD ACID
1.Chemical Name:4,4'-Diaminostibene-2,2'-Disulfonic Acid
2.Commodity Name:DSD Acid
3.Structural Formula:

4.Molecular Formula:C14H14N206S2
5.Molecular Weight:370.4
6.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 .
7.Specifications:

Items Index of Quality
Appearance Light Yellow Paste or Power

Contents of Amino(on total paste basis) 45%Min
Contents of Dry Products(on total paste basis) 95%Min
Insoluble in Alkali(on total paste basis) 0.05%Max
Insoluble in Alkali (on bais of dried sample) 0.08%Max
Benzyl Value(on basis of total sample) 0.25%Max

8.Main Usage:
　　 Used in manufacture of fluorescent whitening agent.
　　 Direct Chrysophenine G.
　　 Direct yellow R and used as insect preventive ect.
9.Packing:
　　For Powders: 25kg net poly-woven bags or as the customers requirements.
　　For Paste: 40kg net poly-woven bags or as the customers requirements.