NILE CHEMICALS |
PHENOL RED SODIUM SALT |
SPECIFICATION SHEET |
CAS No. | 34487-61-1 | |
Chemical Formula | C19H13NaO5S | |
Molecular Weight | 376.36 | |
Melting Point | 285° c | |
Dye Content | ~90% | |
Solution Clarity (Water) | To pass | |
Transition Range | pH 6.5 - pH 8.0 Yellow to Red violet |
|
Absorptivity (pH 1.2) 503 - 506 nm | 880 - 950 | |
Absorptivity (pH 3.0) 430 - 435 nm | 560-620 | |
Absorptivity (pH 6.5) 430 - 435 nm | 560 - 620 | |
Absorptivity (pH 8.0) 557 - 560 nm | 970 - 1100 | |
Loss On Drying (110° c) | < 5% |
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