Thymol Blue

Details:

Thymol Blue Chemical Properties
Melting point     221-224 °C (dec.) (lit.)
Boiling point     539.4°C (rough estimate)
density     1.1413 (rough estimate)
refractive index     1.5300 (estimate)
Fp     36 °C
storage temp.     Store at RT.
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
Odor    Characteristic odour
PH Range    1.2(red)-2.8(yellow) 8(yellow)-9.6(blue)
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)

Safety Information
Risk Statements     10
Safety Statements     24/25
RIDADR     UN 1170 3/PG 3
WGK Germany     3
RTECS     XP2575000
TSCA     Yes
HS Code     2934 99 90
PackingGroup     II