 오퍼게시판 |
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제 목:
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D S D ACID |
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상품분류: |
유기화학원료와 중간체
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등록분류: |
Offer to Sell |
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내용: |
Additional_detail: D S D ACID
Chemical name:4,4'-
Diaminostilbene-2,2'-disulfonic
acid
Commodity name:DSD Acid
Molecular Formula:C14H14N206S2
Molecular Weight:370.4
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.
DSD Acid Specifications :
1> Moist Product
Appearance: Light yellow paste
Total Amino Value(on total paste
basis), min.:47%
Total Amino Value of Dry product
(on total sample basis), min.-
Benzyl Matter(on basis of 100%
DSD acid), max.:0.25
Matter Insoluble in Alkali (on
basis of 100% DSD acid), max.:0.05
Chromaticity, max.:0.20
Content of Ash %, max. -
2> Dry Product
Appearance :Light yellow power
Total Amino Value(on total paste
basis), min.-
Total Amino Value of Dry product
(on total sample basis), min.:95%
Benzyl Matter(on basis of 100%
DSD acid), max.:0.25
Matter Insoluble in Alkali (on
basis of 100% DSD acid), max.:0.05
Chromaticity, max.:0.1
Content of Ash %, max. :2.0
DSD Acid Main usage:
Used in manufacture of
fluorescent whitening agent.
Direct Chrysophenine G.
Direct yellow R and used as
insecticide ect.
DSD Acid 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.
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