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Bromothymol blue, 25 g

p.a., ACS
Pack Qty.
3',3''-Dibromothymolsulphonphthaleine, BTB
Empirical formula C27H28Br2O5S
Molar mass (M) 624,40 g/mol
Melting point (mp) 202 °C
CAS No. [76-59-5]
EG-Nr. 200-971-2

Indicator pH 6.0-7.6
Dissolve 0,1 g in 100 ml ethanol (20 %) or 0,04 g in 0,64 ml NaOH 0,1 mol/l and fill up with water to 100 ml

Guarantee analysis

CHF83.90/Pack Qty. 

excl. VAT. | 25 g per Pack Qty.

Art. No. T117.2

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Product details

Bromothymol blue p.a., ACS

Technical Information
Colour conversion yellow - blue 
Handling area pH 6,0 - 7,6 
Bromothymol blue
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Order No. Pack Qty. Pack. Price Quantity
T117.1 5 g glass CHF34.90
T117.2 25 g glass CHF83.90
T117.3 50 g glass CHF139.90
T117.7 100 g glass CHF247.10
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General information

Indicators and Dyes

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Certificates of Analysis

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Guarantee analysis

Appearancelight pink powder  
Appearance of solutioncomplies  
pH-transition range6,0 (yellow) - 7,6 (blue)  
Loss on drying (110 °C)≤3 %  

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