m-Cresol Purple (m-Cresolsulfonphthalein)
m-Cresol Purple is a highly effective pH indicator dye, specifically designed for precise spectrophotometric pH measurements. This chemical compound stands out due to its unique properties, making it essential for laboratory applications requiring colorimetric analysis.
Key Features:
- Acidic and Hydrophobic: Ideal for various analytical applications where a specific pH detection is critical.
- Visual Transition Range:
- pH 1.2 - 2.8: Color transitions from red to yellow.
- pH 7.4 - 9.0: Color shifts from yellow to violet.
- Chemical Grade: Ungraded, suitable for general industrial use or research purposes. Typically not recommended for human consumption or therapeutic use.
Specifications:
| Chemical CAS Number |
1/7/2303 |
| Chemical Formula |
C21H18O5S |
| Chemical Formula Weight |
F.W. 382.43 |
| Chemical Specs |
Absorption Max. (in 0.005N NaOH in MeOH) 579 (371) nm
Visual Transition Interval:
- pH 1.2 (red) to pH 2.8 (yellow)
- pH 7.4 (yellow) to pH 9.0 (purple)
|
| Chemical UPS Limit |
150 lb |
| Health Rating |
2 |
| Flammability Rating |
1 |
| Chemical Category |
Dyes |
Usage Instructions:
Always handle m-Cresol Purple with appropriate safety protocols, including wearing personal protective equipment. Utilize the pH indicator within the specified ranges for accurate results in your chemical analyses.
