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Tianjin Ailike Chemical Co.,Ltd.
 
 
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Professional Supply Dsd Acid 95% 

  产品分类 : 化學->化工原料

     
Professional Supply Dsd Acid 95%
         

  产品规格
 
Model No:    95%
  Country  CN
  Brand  alk
  Materials  chemical
  Size  powder    
  Color  light yellow
  Packing  Packed into 25/500 kg PP/craft bag
  Minimum Order  1FCL
  Payment Term  50%Tt in Advance,50% Against The B/L Copy

 

  产品描述
   
  1. Product name:
DSD Acid
4, 4'-Diaminostilbene-2
2'-disulfonic acid
2. CAS No.: 81-11-8
3. EINECS NO.: 201-325-2
4. Molecular Formula: C14H14N206S2
5. Molecular Weight: 370.4
6. HS Code: 2922210000
7. Appearance: Light yellow paste or powder

8. Physical and chemical properties:
1)Light yellow paste or powder, soluble in alcohol and ether; Insoluble in water, easily dissolved in alkaline solution.
2)Easily oxidated to red in air, it has properties of aromatic acid and amine.

9. Usage: DSD Acid is the key intermediates for synthesis of optical brightener and direct chrysophenine G, direct yellow R.
Used in manufacture of fluorescent whitening agent.
Direct Chrysophenine G.
Direct yellow R and used as insecticide ect.

10. Package: Packed into 25/500 kg PP/craft bag, 10MT/20'FCL, 20MT/40'FCL (with pallet).

11. Specification:
Items Index of quality
Appearance----------------- Moist Product Dry Product
Light yellow paste Light yellow power
Total Amino Value-------------- 47% 95%
Benzyl Matter(on basis of 100% DSD acid), max.
------------------- 0.25 0.25
Matter Insoluble in Alkali (on basis of 100% DSD acid), max.
------------------- 0.05 0.05
Chromaticity, max.------------- 0.20 0.1
Content of Ash %, max.--------- -- 2.0

   


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