Thymol Blue

Chemical Properties

Melting point	221-224 °C (dec.) (lit.)
Boiling point	539.4°C (rough estimate)
Density	1.1413 (rough estimate)
bulk density	350kg/m3
refractive index	1.5300 (estimate)
Flash point	36 °C
storage temp.	room temp
solubility	0.11g/l
form	Solid
pka	Pka1:1.65(at 25℃)(PH=1.2 to 2.8) Pka2:8.9(at 25℃)(PH=8.0 to 9.6)
color	Dark green to dark brown
PH Range	1.2(red)-2.8(yellow) 8(yellow)-9.6(blue)
Odor	Characteristic odour
PH	1.2-2.8 8.0-9.6
Water Solubility	Soluble in alcohol and dilute alkali solutions. Insoluble in water.
λmax	594nm, 376nm, 544nm, 430nm
Merck	14,9400
BRN	368036
Stability	Stable. Combustible. Dust may form an explosive mixture with air. Incompatible with strong oxidizing agents.
Major Application	Display device, semiconductors, sensors, fuel cells, antimisting coating for glass, toys, corrosion inhibitor, multi-level alert system, correction fluid, textiles, falsification-proof security paper, packaging system, measurement of hydrogen ion concentrationin swimming pool water, humidity-indicating agent, diapers, cosmetics, biostatic materials, determine bacteria growth, psychoactive drugs, antidepressant drugs, dental impression material
CAS DataBase Reference	76-61-9(CAS DataBase Reference)
NIST Chemistry Reference	Thymolsulfonephthalein(76-61-9)
EPA Substance Registry System	Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)- (76-61-9)

Provider	Language
ACROS	English
ALFA	English