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A7631412

Thymolblue , Indicator level , 76-61-9

Synonym(s):
Thymol blue;Thymolsulfonphthalein

CAS NO.:76-61-9

Empirical Formula: C27H30O5S

Molecular Weight: 466.59

MDL number: MFCD00005869

EINECS: 200-973-3

Pack Size Price Stock Quantity
5g RMB29.60 In Stock
25G RMB74.40 In Stock
100g RMB246.40 In Stock
500g RMB1136.80 In Stock
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Update time: 2022-07-08

PRODUCT 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)
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
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

Description and Uses

As as acid-base indicator; pH: red 1.2 to yellow 2.8; also yellow 8.0 to blue 9.6.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H225-H301+H311+H331
Precautionary statements  P280-P305+P351+P338
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

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