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Bromothymol Blue sodium salt 34722-90-2

Bromothymol blue sodium salt is a pH indicator used to determine weak acids and bases. It is yellow when acidic and blue when alkaline. Storage method: Avoid light.

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Model:
34722-90-2
Brand:
futurechemical
Code:
34722-90-2

Product Description

BTB Basic information
Product Name:	BTB
CAS:	34722-90-2
MF:	C27H29Br2NaO5S
MW:	648.38
EINECS:	252-169-7
Mol File:	34722-90-2.mol
BTB Chemical Properties
Melting point	200-202°C
density	0.99
storage temp.	room temp
solubility	Solubility Soluble in water, ethanol
form	Powder
pka	7.0, 7.1(at 25℃)
color	Orange-brown to dark green
Odor	Characteristic odour
PH	6.0-7.6, yellow to blue
PH Range	Yellow (6.0) to blue (7.6)
Water Solubility	SOLUBLE
λmax	615nm, 392nm
ε(extinction coefficient)	≥35000 at 614-618nm in 0.1 M NaOH at 0.005g/L
BRN	6887926
Stability:	Stable. Incompatible with strong oxidizing agents.
Major Application	Lithium battery, textiles, antagonists
CAS DataBase Reference	34722-90-2(CAS DataBase Reference)
EPA Substance Registry System	Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-bromo-3-methyl-6-(1-methylethyl)-, monosodium salt (34722-90-2)