国内精品无码视频免费|久久九九国产无码高清|日韩免费码中文在线观看|在线亚洲午夜理论AV大片|a级毛片免费高清毛片视频|亚洲男人的天堂网在线观看|美女脱光光av免费一线网站|AV鲁丝一区鲁丝二区鲁丝三区

?

DSD ACID

Commodity Name: DSD Acid

Chemical Name: 4,4′- Diaminostilbene-2,2′- disulfonic acid

 
  • 81-11-8

    CAS No.

  • Molecular Formula

  • 370.4

    Molecular Weight

 
Structure Formula:
 

Specification:

Items I+quality
Paste Powder
Appearance Light yellow Light yellow
Contents of Amino % ≥60.0 ≥95.0
Benzyl value % ≤0.5 ≤0.3
Insoluble in Alkali % ≤0.1 ≤0.1
Moisture % - ≤2.0

Usage: Used in manufacture of fluorescent whitening agent, direct chrysophenineG, direct yellow R and used as
insecticide.

Packing: For powder: 25kg net poly-woven bags or  as customers’requirments.
For paste: 40kg net poly-woven bags or as customers’requirments.


?