Technical Data Sheet
Phenol red, 5 g
p.a., ACS
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Phenolsulphonphthalein
Empirical formula C19H14O5S
Molar mass (M) 354,38 g/mol
Melting point (mp) >300 °C
WGK 1
CAS No. 143-74-8
EG-Nr. 205-609-7
Molar mass (M) 354,38 g/mol
Melting point (mp) >300 °C
WGK 1
CAS No. 143-74-8
EG-Nr. 205-609-7
Indicator pH 6.5-8.2
Dissolve 0.1 g in 100 ml ethanol (20 %) or 0.04 g in 1.13 ml NaOH 0.1 mol/l and fill up with water to 100 ml
Dissolve 0.1 g in 100 ml ethanol (20 %) or 0.04 g in 1.13 ml NaOH 0.1 mol/l and fill up with water to 100 ml
€19.25/Pack Qty.
excl. VAT. | 5 g per Pack Qty.
Art. No. T127.1
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from 6 Pack Qty.
€18.29/Pack Qty.
from 24 Pack Qty.
€17.32/Pack Qty.
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Product details
Phenol red p.a., ACS
Technical Information
| Colour conversion | yellow - red |
| Transition range pH | 6,5 - 8,2 |
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Phenol red
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| Art. No. | Pack Qty. | Pack. | Price | Quantity | |
|---|---|---|---|---|---|
| T127.1 | 5 g | glass |
€19.25 |
|
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| T127.2 | 25 g | glass |
€45.70 |
|
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| T127.3 | 100 g | glass |
€126.35 |
|
|
|
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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
Guarantee analysis
| Transition range | 6,8 (yellow)-8,2 (red) |
| Loss on drying (110 °C) | ≤5,0 % |
| Appearance of solution (ACS) | complies |