Thymol Blue Free Acid ACS

£13.07 to £98.70

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Variation ID		Product Code	Pack Size	List Price
6507	photo_camera	RRBD33556-U	10g RRBD33556-U	£13.07
6508	photo_camera	RRBD33556-W	25g RRBD33556-W	£26.78
6509	photo_camera	RRBD33556-2W	50g RRBD33556-2W	£49.98
6510	photo_camera	RRBD33556-X	100g RRBD33556-X	£98.70

Thymol blue (thymolsulphonephthalein) is a brownish-green or reddish-brown crystalline powder that is used as a pH indicator.

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%

Cas Number: 76-61-9

Einecs Number: 200-973-3

HS Code / Commodity Code: 32129000

Hazard Phrases: H0001