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Bromophenol Blue Indicator AR
3',3'',5',5''-Tetrabromophenolsulfonephthalein; BPB

Product Code.
00509
Grade
Purity
CAS No.
115-39-9
Molecular Formula
C19H10Br4O5S
Molecular Weight
669.99
H.S.Code
2934.99000
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Solid
Colour
Pale orange
Odour
Odorless
Melting point/ Freezing point [°C]
273 °C
Boiling point [°C]
279°C
Solubility in water [% weight]
0.4g/100g water @ 200C

Packaging

Specification

Appearance
Pink-orange to red to purple powder
pH 3.0-4.6
Yellow to Blue
Appearance of solution
Passes test
Loss on drying (at 105°C)
Max 1.0%
Transition range pH 3.0-4.5
Greenish yellow -blue violet
Transition range acc. ACS
Passes test
Sensitivity test
Passes test

Safety Information and Hazard Symbols