Mainly used for various high-strength concrete, steel concrete, prestressed concrete etc. As a water reducing agent. Chemical name: Sodium Salt of Polynaphthalene Sulfonic Acid or Sodium Naphthalene Formaldehyde(SNF)CAS number: 36290-04-7  Features Specifications:

ITEM	STANDARD	RESULT
Solid Content	92% min	93.38%
Fineness	5.0% max	0.54%
PH value	8-10	8.62
Sodium Sulfate Content	5.0% max	3.60%
Chlorides Content	2.0% max	0.21%
Surface Tension	68-72Mn/m	71
Cement Flowing Rate	240mm min	265mm
Concrete Reducing Water Rate	20% min	21.50%
Steel-bar Corrosion	None	None

                          sulphate content                                           5% max                    2%

Polynaphthalene sulfonate (PNS) superplasticizer