Technical Data Sheet
Chlorophenol red, 5 g
p.a.
H315-H319-H335
causes skin irritation, causes serious eye irritation, may cause respiratory irritation
P280 P302+P352 P305+P351+P338
wear protective gloves/eye protection, IF ON SKIN: Wash with plenty of soap and water, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
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3',3''-Dichlorophenol sulphonic phthalein
Empirical formula C19H12Cl2O5S
Molar mass (M) 423,27 g/mol
Melting point (mp) 261 °C
WGK 1
CAS No. 4430-20-0
EG-Nr. 224-619-2
Molar mass (M) 423,27 g/mol
Melting point (mp) 261 °C
WGK 1
CAS No. 4430-20-0
EG-Nr. 224-619-2
Indicator pH 4.8-6.4
Dissolve 0.1 g in 100 ml ethanol (20 %) or 0.04 g in 0.94 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 0.94 ml NaOH 0.1 mol/l and fill up with water to 100 ml
€38.60/Pack Qty.
excl. VAT. | 5 g per Pack Qty.
Art. No. 0347.1
In stock
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€36.67/Pack Qty.
from 24 Pack Qty.
€34.74/Pack Qty.
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Product details
Chlorophenol red p.a.
Technical Information
Colour conversion | yellow - red violet |
Transition range pH | 4,8 - 6,4 |
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Chlorophenol red
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Art. No. | Pack Qty. | Pack. | Price | Quantity | |
---|---|---|---|---|---|
0347.1 | 5 g | glass |
€38.60 |
|
|
0347.2 | 10 g | glass |
€61.20 |
|
|
0347.3 | 25 g | glass |
€138.70 |
|
|
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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
Maximum absorption | 560-575 nm |
Loss on drying (110 °C) | ≤5 % |