| name |
appearance |
solid content |
ph |
bubble |
acid resistance（%） |
alkali resistance |
surface tension |
| (25℃) |
（%） |
（10% aqueous solution） |
（ml） |
hydrochloric acid |
sulfuric acid |
hydrofluoric acid |
(gnaoh/l water) |
(mn/m) |
| fc-39 |
mber liquid |
39.0-41.0 |
5.0-11.0 |
0 |
23 |
40 |
20 |
330 |
24.6 |
| fc-40 |
light yellow liquid |
39.0-41.0 |
5.0-11.0 |
0 |
31 |
58 |
20 |
325 |
28.2 |
|
|