Sodium Naphthalene Formaldehyde
Sodium Naphthalene Sulfonate Formaldehyde(SNF/PNS/FND), also called naphthalene superplasticizer, belongs to a type of High Range Water Reducer, and it can be widely used in cement and construction industry. SNF is made of naphthalene, sulfuric acid, formaldehyde and liquid base, and undergoes a series of reactions such as sulfonation, hydrolysis, condensation and neutralization, and then is dried into a powder.
General information
Cas No.36290-04-7
HS code 3824.4010
Molecular weight 480.44
Specification:
| Type | SNF-A | SNF-B | SNF-C |
| Solid Content (%) ≥ | 92 | 92 | 92 |
| PH Value | 7-9 | 7-9 | 7-9 |
| Na2SO4 Content (%)≤ | 5 | 10 | 18 |
| Chlorine Content (%)≤ | 0.3 | 0.4 | 0.5 |
| Net Starch Fluidity(mm)≥ | 250 | 240 | 230 |
| Water Reducing Rate(%) | 26 | 25 | 23 |
| Packing | 25kg pp bag; 650kg Jumbo bag. Customized package available. | ||
Application:
1.Used for and widely for self-cured,vapor-cured concrete.
2.Suitalbe for preparation of early-strength,high-strength,high-anti-filtration ad self-sealing and pumpable concrete.
3.Widely used in pre-cast and ready-mixed concrete,armored concrete and pre-stressed reinforced concrete.
4.Compatible with Portland cement,normal Portland cement,Portland slag cement,fly-ash cement and Portland pozzolanic cement.etc
Package:
In 25kgs net per plastic woven bag
Storage:
Keep in shaded,cool and dry place,Shelf life is two years.