Technical Data Sheet
Resorcinol yellow (C.I. 14270), 5 g
extra pure
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Tropaeolin O sodium salt
Empirical formula C12H9NaN2O5S
Molar mass (M) 316,27 g/mol
WGK 1
CAS No. 547-57-9
Molar mass (M) 316,27 g/mol
WGK 1
CAS No. 547-57-9
Dissolve 0.1 g in 100 ml ethanol or water
Indicator pH 11,0-12,7
Indicator pH 11,0-12,7
€19.90/Pack Qty.
excl. VAT. | 5 g per Pack Qty.
Art. No. 7741.1
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€18.90/Pack Qty.
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Product details
Resorcinol yellow (C.I. 14270) extra pure
Technical Information
| Colour conversion | yellow - orange |
| Transition range pH | 11,0 - 12,7 |
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Resorcinol yellow (C.I. 14270)
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| Art. No. | Pack Qty. | Pack. | Price | Quantity | |
|---|---|---|---|---|---|
| 7741.1 | 5 g | glass |
€19.90 |
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| 7741.2 | 25 g | glass |
€34.95 |
|
|
| 7741.3 | 100 g | glass |
€84.40 |
|
|
|
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Downloads / MSDS
General information
Indicators and Dyes
Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.
Certificates of Analysis
Type analysis
| Appearance | dark orange to rust colored powder |
| Appearance of solution (10 mg/ml in 1 N NH3) | clear, red brown |
| pH-transition range | 11,0 (yellow)-12,7 (red) |