|
Item
|
Index
|
|
Appearance
|
Black brown free flowing powder
|
|
pH value
|
8～9
|
|
Water content, %
|
≤10
|
|
The content of sodium sulfonate group, %
|
≥ 10
|
|
Water soluble matter, %
|
≥ 70
|
|
Oil soluble matter, %
|
≥ 25
|
|
The high temperature and high pressure filtration ml，30min
|
≤25
|
|
Plastic viscosity reduction rate, %
|
≥ 30.0
|
|
Dynamic shear force reduction rate, %
|
≥ 40.0
|
