Bromophenol Blue
Bromophenol blue is colorless or light rose red fine crystals. Soluble in ethanol, benzene, ether and other organic solvents, slightly soluble in water, the aqueous solution is yellow, and blue-purple in alkaline solution. It is mainly used as an acid-base indicator, the pH discoloration range is 3.0 to 4.6, and the color changes from yellow to green to blue-violet. Dissolve phenol red in glacial acetic acid, add a solution of bromine dissolved in glacial acetic acid under stirring, pour into 60°C hot water after stirring for a few minutes, cool to room temperature, and place overnight. Filter, wash the filter cake with glacial acetic acid and benzene in turn, and air dry to obtain bromophenol blue.
| Payment & Shipping Terms | Supply Capacity | ||
|---|---|---|---|
| Payment Terms: | T/T, WU | Production Capacity: | 600T/year |
| Min. Order: | 25KG | Packing: | according to the customer's requirements |
| Means of Transport: | Ocean, Air, Land | Delivery Date: | 7 days |
Bromophenol Blue
CAS 115-39-9
Bromophenol blue is colorless or light rose red fine crystals. Soluble in ethanol, benzene, ether and other organic solvents, slightly soluble in water, the aqueous solution is yellow, and blue-purple in alkaline solution. It is mainly used as an acid-base indicator, the pH discoloration range is 3.0 to 4.6, and the color changes from yellow to green to blue-violet. Dissolve phenol red in glacial acetic acid, add a solution of bromine dissolved in glacial acetic acid under stirring, pour into 60°C hot water after stirring for a few minutes, cool to room temperature, and place overnight. Filter, wash the filter cake with glacial acetic acid and benzene in turn, and air dry to obtain bromophenol blue.
| Item | Index |
|---|---|
| PH indication range | 3.0-4.6 |
| Melting point | 273℃ |
| Density(g/ml) | 0.954 |
| Flash point | 58℃ |
We can customize according to customer's requirement.
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| CAS Number | 115-39-9 |
|---|---|
| Melting point | 273℃ |
| Density | 0.954 g/mL at 20℃ |
| Flash point | 58℃ |
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