1. Introduction:
? ? ?The product is a condensate compound of sodium naphthalene sulfonate formaldehyde.
? ??2.Specifications
Item |
NAS(Ⅰ) |
NAS(Ⅱ) |
Appearance |
Uniform yellowish powder |
Uniform yellowish powder |
Humidity??????????????????????? %< |
6 |
6.0 |
Sodium sulfate content?????????? ??% |
5-10 |
3.5 |
Ph value (2%? water solution) |
9.6 – 10.4(2%) |
9.6 – 10.4(10%) |
Sulfate ash????????????????? ????% |
28-35 |
28-33 |
Ferric content? (as Fe2O3)???????? %≤ |
0.003 |
0.003 |
Alkalinity? (as Na2Co3)?????????? %≤ |
0.80 |
0.80 |
Water insoluble impurity content??? %≤ |
0.06 |
0.06 |
Calcium content? (CaO)????????? %≤ |
0.04 |
0.035 |
Cu、Mn??????????????????? ?ppm≤ |
5 |
5 |
Polymerization experiment |
Qualified |
|
Average molecular weight |
700 |
|
?
?
? ?3. Applications, package and storage
? ?1) Dispersant NAS(Ⅰ)and dispersant NAS(Ⅱ) is used in producing synthetic rubber.
? ? ? ?2) Storage: Store it in a cool, dry and ventilated warehouse.
? ? ? 3) Package: Paper bag lined with plastic woven bag, 25kgs/bag net, the shelf life:? ? ?two years.