original producer FDN sodium naphthalene sulphonate price

Sodium Naphthalene Sulphonate Formaldehyde /Poly Naphthalene Sulfonate Formaldehyde Condensate (SNF-B)     Product Description High Range Water-Reducing Admixture Sodium Naphthalene Sulphonate Formaldehyde, Poly Naphthalene Sulfonate Formaldehyde Condensate,Concrete Admixture  Specifications  

Appearance	Brown yellow powder
Dry matter	≥93%
PH	7-9
Sodium sulfate content	≤10
chlorine content	≤0.4%

  Uses         Sodium Naphthalene Sulphonate Formaldehyde produces concrete with extremely workable characteristics referred to as high slump. PNS also allows concrete to be produced with very low water/cement ratios at low or normal slumps. 
        Sodium Naphthalene Sulphonate Formaldehyde is ideal for use in prestress, precast, bridge deck or any concrete where it is desired to keep the water/cement ratio to a minimum and still achieve the degree of workability necessary to provide easy placement and consolidation   Addition Rates         Sodium Naphthalene Sulphonate Formaldehyde can be added directly or added in after melt. It can be added during mixing and after-mixing. The afterward approach can achieve better result. The suggested addition rate is 0.75%. 
Sodium Naphthalene Sulphonate Formaldehyde Direction 
Prepare solutions as required. 
Direct use of powdery agent is allowed. Alternatively the addition of the agent is followed by water moisturization (water-cement ratio: 60%). 
     The agent can be combined with other externally applied agents if pilot development or laboratory experiment succeeds.                    Certificate of Analysis  Product: Sodium Naphthalene Sulphonate Formaldehyde (SNF-B)        Date:2016-09-15                 Batch No.:   2016091501                                        Quantity: 60000 kg  

NO	Index items	Standard value	Test Results
1	Appearance	Yellow Brown powder	Meets the requirement
2	PH Value	7--9	7.8
3	solids content (%)	92min	92.1
4	net starch fluidity(mm)	250min	262
5	content of cl- (%)	0.4% max	0.3
6	Na2SO4 content (%)	10%max	8.6
7	surface tension (N/m)	(71 ± 1) × 10 -3	(71 ± 1) × 10 -3
Conclusion		Complies with requirements .

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