Thymol blue (thymolsulphonephthalein) is a brownish-green or reddish-brown crystalline powder that is used as a pH indicator.
Molecular Formula: C27H30O5S
Molecular Weight: 466.59 g/mol
Melting Point: 221 - 224 °C
Visual transition interval: pH 1.2 (red) - (acid range) pH 2.8 (yellow)
Visual transition interval: pH 8.0 (yellow) - (alkaline range) pH 9.2 (blue)
Loss on drying: < 5.0%
Hazard Phrazes: Not considered harmful under normal laboratory conditions
Code | Pack | Price | Qty | |
---|---|---|---|---|
RRBD33556-T | 5g | £5.55 | ||
RRBD33556-U | 10g | £8.95 | ||
RRBD33556-W | 25g | £13.95 | ||
RRBD33556-2W | 50g | £24.95 | ||
RRBD33556-X | 100g | £48.95 |