PNS
Synthesis
The product is made of naphthalene, sulfonic acid, HCHO and Alkali through sulphuration,
hydrolyzation, condensation and neutralization reaction.
Properties
CAS No.: 36290-04-7
Average molecular weight: 25,000-35,000 (by GPC)
S.G (water=1): 0.69
Ionic nature: anionic
Solubility: completely soluble
Commodity
There are three products in our company, which are Kecon05, Kecon20 and Kecon Ca-05.
The specifications of each product is displayed as follows:
Kecon 05 (Sodium salt of polynaphthalene sulfonic acid)
|
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 |
Kecon 20 (Sodium salt of polynaphthalene sulfonic acid)
|
ITEM |
STANDARD |
RESULT |
|
Solid Content |
92% min |
93.41% |
|
Fineness |
5.0% max |
1.04% |
|
PH value |
8-10 |
8.46 |
|
Sodium Sulfate Content |
18.0% max |
16.71% |
|
Chlorides Content |
2.0% max |
0.21% |
|
Surface Tension |
68-72 Mn/m |
70 |
|
Cement Flowing Rate |
230mm min |
240mm |
|
Concrete Reducing Water Rate |
18% min |
20.00% |
|
Steel-bar Corrosion |
None |
None |
Kecon Ca-05 (Calcium salt of polynaphthalene sulfonic acid)
|
ITEM |
STANDARD |
RESULT |
Solid Content |
92% min |
93.10% |
|
Fineness |
5.0% max |
0.95% |
|
PH value |
8-10 |
8.51 |
|
Sodium Sulfate Content |
5.0% max |
---- |
|
Chlorides Content |
2.0% max |
0.09% |
|
Surface Tension |
68-72Mn/m |
---- |
|
Cement Flowing Rate |
240mm min |
245mm |
|
Concrete Reducing Water Rate |
20% min |
21.00% |
|
Steel-bar Corrosion |
None |
None |
Application
PNS is a kind of water reducing agent, and it can be used in:
1. Precasting
2. Pumping concrete
3. Architectural concrete
4. Fly ash concrete
5. Underwater concrete
Packaging
25kg and 800kg bag |
