Thymolphthalein Chemical Properties

Melting point:

251-253 °C(lit.)

Boiling point:

504.79°C (rough estimate)

Density 

0.92 g/mL at 25 °C

refractive index 

1.6400 (estimate)

Flash point:

74 °F

storage temp. 

Store at RT.

solubility 

ethanol: clarity passes test

form 

Low Melting Mass

pka

9.70, 10.0(at 25℃)

Specific Gravity

0.92

color 

White to slightly yellow

Odor

Mild characteristic odor

PH

8.6～10.5

PH Range

9.3(colourless)-10.5(blue)

explosive limit

3.30-19%

Water Solubility 

insoluble

λmax

592nm, 396nm, 598nm

Merck 

14,9401

BRN 

359413

Major Application

Display device, semiconductors, recording materials, photoconductors, sol-gel matrix, tin electroplating process, counterfeit-proof paper, authentication system forsecure documents, inks, pencil leads, correction fluid, paints, petroleum marker, tennis ball, adhesives, floor coatings, textiles, detergents, insecticide, lotion, cleaning pads, food storage, determine bacterial growth, Streptococci in saliva, dental impressionmaterials

InChIKey

GRBHJPCWQRVGND-UHFFFAOYSA-N

CAS DataBase Reference

125-20-2(CAS DataBase Reference)

EPA Substance Registry System

Thymolphthalein (125-20-2)

Safety Information

Hazard Codes 

F,Xn

Risk Statements 

11-40-10

Safety Statements 

7-16-36/37-24/25-22

RIDADR 

UN 1170 3/PG 3

WGK Germany 

3

TSCA 

Yes

HazardClass 

3

PackingGroup 

II

HS Code 

29322980

MSDS

• Language:English Provider:Thymolphthalein
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
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Thymolphthalein Usage And Synthesis

Chemical Properties

white fine crystalline powder

Uses

As pH indicator: colorless 9.3 to blue 10.5. Also as reagent for blood after decolorizing the alkaline solution by boiling with zinc dust.

Thymolphthalein(125-20-2)Related Product Information

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