Polypropylene PP - Acids Resistance
Chemical resistance of PP - to some common acids, bases, organic substances and solvents
Most of our filter cartridges are made of PP, so the chemical resistance data should be almost the same with that of PP.
Acids
| Product | Rating 1) | |
| 20 oC | 60 oC | |
| Benzoic acid | 1 | 2 |
| Boric acid | 1 | 1 |
| Hydrobromic acid 25 % | 2 | 3 |
| Citric acid | 1 | 1 |
| Hydrocyanic acid | 2 | 2 |
| Hydrofluoric acid | 2 | 2 |
| Phosphoric acid 25 % | 1 | 1 |
| Phosphoric acid 85 % | 1 | 1 |
| Phthalic acid | 1 | 1 |
| Tannic acid | 1 | 1 |
| Chromic acid | 1 | 2 |
| Maleic acid | 1 | 1 |
| Oleic acid | 2 | 3 |
| Oxalic acid | 1 | 1 |
| Nitric acid 5 % | 2 | 3 |
| Nitric acid 65 % | 4 | 4 |
| Chlorhydric acid 10 % | 1 | 1 |
| Chlorhydric acid 37 % | 2 | 3 |
| Butyric acid | 1 | 1 |
| Sulphuric acid 10 % | 1 | 1 |
| Sulphuric acid 78 % | 2 | 4 |
| Sulphuric acid 93 % | 3 | 4 |
| Tartaric acid | 1 | 1 |
| Acetic acid 10 % | 1 | 1 |
| Acetic acid 50 % | 1 | 1 |
| Acetic acid 75 % | 1 | 1 |
| Acetic acid 100 % | 2 | 3 |
| Perchloric acid | 1 | 2 |
1.Excellent (no attack)
2.Good (no significant attack)
3.Acceptable (light attack, limited use)
4.Unacceptable (significant attack)
5.Inferior (possible cracking or dissolving)
2) Acid salt (normally aqueous) aluminum chloride,
aluminum phosphate, copper chloride, sulphate of copper,
ferrous sulphate, ferric chloride, stannic chloride,
chloride of zinc, white vitriol etc
3) Basic salt (normally aqueous) bicarbonate of
potassium, potash, sodium bicarbonate, sodium carbonate,
sodium phosphate etc.
4) Neutral salt (normally aqueous) calcium chloride,
calcium nitrate, calcium sulphate, magnesium chloride,
nitrate of potassium, potassium sulphate, sodium chloride,
sodium nitrate, sodium sulphate etc.
