pH Range Indicator

 

0.2 (red) -1.8 (yellow)                          Cresol Red

1.2 (red) - 2.8 (yellow)                         Cresolphthalein (meta)

1.2 (red) - 2.8 (yellow)                         Cresol Purple

1.2 (red) - 2.8 (yellow)                         Thymol Blue

2.9 (purple) - 4.6 (green)                    Methyl Orange - Xylene Cyanol

3.0 (yellow) - 4.6 (blue)                       Bromphenol Blue

3.0 (blue) - 5.0 (red)                              Congo Red

3.0 (red) -6.3 (yellow)                          Methyl Orange

4.0 (red) - 5.6 (yellow)                         Alizarin Red S

4.0 (yellow) - 5.6 (blue)                       Bromcresol Green

4.0 (colorless) - 6.6 (green)              Dichlorofluorescein

4.2 (pink) - 6.2 (yellow)                      Methyl Red

4.6 (pink) - 5.2 (green/blue)             Bromcresol Green / Methyl Red

5.2 (yellow) - 6.6 (purple)                  Bromcresol Purple

5.2 (yellow) - 6.8 (red)                         Chlorophenol Red

6.0 (yellow) - 7.6 (blue)                       Bromthymol Blue

6.8 (yellow)- 8.2 (red)                          Phenol Red

7.3 (colorless/reddish) - 

8.7 (blue/green)                                        a-Naphtholphtalein 

7.2 (yellow) - 8.8 (red)                          Cresol Red

7.4 (yellow) - 9.0 (purple)                   Cresolphthalein (meta)

7.4 (yellow) - 9.0 (purple)                   Cresol Purple

8.0 (colorless) - 10 (pink)                    Phenolphthalein

8.2 (colorless) - 9.8 (violet/ red)     Cresolphthalein (ortho)

8.8 (colorless) - 10.5 (blue)                Thymolthalein

11.4 (blue) - 13.0 (yellow)                   Indigo Carmine

1.0 - Cherry/Red                                      Universal Indicator

2.0 - Rose

3.0 - Reddish/Orange

4.0 - Orange/Red

5.0 - Orange

6.0 - Yellow

7.0 - Yellowish/Green

8.0 - Green

9.0 - Bluish/Green

10.0 - Blue