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Methyl Orange C.I.13025
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£3.99 to £23.15
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| Variation ID | Product Code | Pack Size | List Price | Qty | |
|---|---|---|---|---|---|
| RRBD15464-T | 5g | £3.99 | |||
| RRBD15464-W | 25g | £10.97 | |||
| RRBD15464-2W | 50g | £17.56 | |||
| RRBD15464-X | 100g | £23.15 |
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C.I. 13025 (Acid orange 52)
Methyl orange is a pH indicator frequently used in titrations because of its clear and distinct colour change. Because it changes colour at the pH of a midstrength acid, it is usually used in titrations for acids. Unlike a universal indicator, methyl orange does not have a full spectrum of colour change, but has a sharper end point.
- Indicator
- Biological Dye
C.I. 13025
Minimum Assay: 95%
Molecular Formula: C14H14N3NaO3S
Molecular Weight: 327.34 g/mol
Melting Point: >300 °C
Absorptivity (pH 3.0) 501-504nm: 1050-1150
Absorptivity (pH 4.4) 467-471nm: 750-850
Loss on Drying: <5%
Cas Number: 547-58-0
Einecs Number: 208-925-3
HS Code / Commodity Code: 38220090
UN Number: 3143
Hazard Class: 6.1
Packing Group: 3
Hazard Phrases: H301
Prec Phrases: P301+P310,P330,P331
