لیست شناگرهای اسید و باز به همراه محدوده تغییر رنگ آنها
indicator name | <>>pH color | <>>pH color | <>>prepared as | <>>
---|---|---|---|
0.1 | 2.7 | 0.05% water | |
Cresol red | 0.2 | 1.8 | 0.1% water |
1.2 | 2.8 | 0.05% water | |
2,4-Dinitro phenol | 2.8 | 4.7 | 0.1% ethanol |
3.0 | 5.2 | 0.1% water | |
3.1 | 4.4 | 0.1% water | |
Bromocresol green | 3.8 | 5.4 | 0.1% water |
Methyl red | 4.4 | 6.2 | 0.1% ethanol |
4.8 | 6.4 | 0.1g in 24 mL of 0.01 M NaOH, dilute to 250 mL | |
5.0 | 8.0 | 0.5% water | |
5.2 | 6.8 | 0.05% water | |
6.0 | 7.6 | 0.05% water | |
6.4 | 8.2 | 0.05% water | |
6.8 | 8.0 | 0.01% in 50% v/v ethanol | |
Creosol red | 7.0 | 8.8 | 0.1% water |
8.0 | 9.6 | 0.05% water | |
8.2 | 9.8 | 0.5% ethanol | |
Thymolphthalein | 9.3 | 10.5 | 0.2% ethanol |
Alizarin yellow GG | 10.0 | 12.1 | 0.1% ethanol |