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IC-3002 Iron-series phosphating fluid is a kind of iron series phosphating solution with environmental protection, high efficiency, energy saving.
IC-3002 Iron-series phosphating fluid is suitable for the manufacture with the hot rolled plate, steel and other surface spraying phosphating treatment before.
IC-3002 Iron-series phosphating fluid is suitable for the manufacture with the hot rolled plate, steel and other surface spraying phosphating treatment before
Total acidity (points)
Take 10 ml working fluid to the conical flask, add phenolphthalein indicator of 3 to 5 drops and titrate above-mentioned solution by 0.1 M sodium hydroxide standard solution from colorless to red. The quantity (ml) of 0.1 M sodium hydroxide standard solution is called the points of total acidity.
Free acidity (points)
Take 10 ml working fluid to the conical flask, add bromophenol blue indicator of 2 to 4 drops and titrate above-mentioned solution by 0.1 M sodium hydroxide standard solution from yellow to bluish-violet. The quantity (ml) of 0.1 M sodium hydroxide standard solution is called the points of free acidity.
number | item | indicator |
1 | Treatment method | dipping |
2 | Phosphating coating weight | 1~2 vm |
3 | tank liquid total acidity(TA) | dipping:21~26 |
4 | Free acidity(FA) | dipping:1.4~2.0 |
5 | temperature | dipping:20~30℃ |
6 | time | dipping:5~10min |
7 | adhesive property | 0 grade |
8 | Coating endurance 3% NaCl(H) | > 1 |
25kg, 200kg/barrel
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