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Sodium salts of sulfonate naphthalene formaldehyde
we have three kinds of sodium salts of sulfonated naphthalene formaldehydrate, it is super plasticizer, could be used as concrete admixture.
Synonyms: SNF, NSF
HS Code: 38244010
1.FDN-A   Na2SO4 less than 5% 
2.FDN-AI/B Na2SO4 Less than 10% 
3.FDN-AII/C Na2SO4 less than 18%
Specification for FDN-A

Item

Requirement

Appearance

yellowish brown powder

Net starch fluidity(mm)

≥240

PH value

7-9

Contents of Clˉ %

≤0.5

Surface tension (n/m)

(72±2)*10ˉ³

Solid contents%

≥91.5

Na2SO4 contents%

≤18

One 40'FCL hold 26mts
Min order quantity: one 40'FCL
Package: 40kg bags with PE film inside
Payment terms: 30%prepayment and the rest by facsimile copy of B/L.
We export these goods to India, Saudi Arabia, etc.

 
 
 
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