Technical Data Sheet
Bromocresol purple, 5 g
p.a., ACS
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5',5''-Dibromo-cresolsulphonephthaleine
Empirical formula C21H16Br2O5S
Molar mass (M) 540,24 g/mol
Melting point (mp) 245 °C
WGK 1
CAS No. 115-40-2
EG-Nr. 204-087-8
Molar mass (M) 540,24 g/mol
Melting point (mp) 245 °C
WGK 1
CAS No. 115-40-2
EG-Nr. 204-087-8
Indicator pH 5.2-6.8
Dissolve 0.1 g in 100 ml ethanol (20 %) or 0.04 g in 0.74 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 0.74 ml NaOH 0.1 mol/l and fill up with water to 100 ml
€28.50/Pack Qty.
excl. VAT. | 5 g per Pack Qty.
Art. No. 0317.1
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Product details
Bromocresol purple p.a., ACS
Technical Information
Colour conversion | yellow - purple |
Transition range pH | 5,2 - 6,8 |
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Bromocresol purple
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Art. No. | Pack Qty. | Pack. | Price | Quantity | |
---|---|---|---|---|---|
0317.1 | 5 g | glass |
€28.50 |
|
|
0317.2 | 25 g | glass |
€90.20 |
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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
Dye content | ≥89.0 % |
Appearance of solution | complies |
Loss on drying (110 °C) | ≤1 % |
Melting point | 241-245 °C |
pH-transition range | 5.2 (yellow) - 6.8 (purple) |