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| BROMOCRESOL GREEN |
| SPECIFICATION SHEET |
| Bromocresol Green | |
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3'3"5'5"-Tetrabromo-m-cresolsulfonephthalein |
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Molecular Formula
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C21H14Br4O5S |
| Molecular Weight | 698.01 |
| CAS Number | 76-60-8 |
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Test |
Results |
(Limit/Std) |
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| Appearance | Yellow Colour Powder | (passes test) | |
| Transitio pH range | 3.8-5.4 | ||
| GREENISH YELLOW - BLUE | |||
| Soluability 0.1% (EtOH) | Clear Golden Yellow Solution | (passes test) | |
| Absorptivity 1%/1cm, | |||
| (pH 3.8) at l max 444.0 nm | 257 | (240-270) | |
| (pH 5.4) at l max 616.0 nm | 552 | (530-570) | |
| Loss On Drying (1100C) 1 hr. | 0.85% | < 3% |
NILE CHEMICALS