PHENOLPHTHALEIN DISODIUM SALT Chemical Properties

Melting point:

>250°C

storage temp. 

Amber Vial, Refrigerator, Under inert atmosphere

solubility 

Solubility Soluble in water, ethanol

form 

Powder

pka

9.1(at 25℃)

color 

Dark purple to dark brown

PH Range

Colorless (8.0) to pink (10.0)

λmax

553nm

Stability:

Hygroscopic, Light Sensitive

Major Application

Inks, fire-resistant polymers, permanent hair straightener

InChI

InChI=1S/C7H16O9S3/c1-17(8,9)14-5-4-7(16-19(3,12)13)6-15-18(2,10)11/h7H,4-6H2,1-3H3

InChIKey

HAWFSFZXNWBZRU-UHFFFAOYSA-L

SMILES

[Na+].[Na+].[O-]c1ccc(cc1)C(=C3C=CC(=O)C=C3)c2c(cccc2)C(=O)[O-]

EPA Substance Registry System

1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-, disodium salt (518-51-4)

Safety Information

Risk Statements 

36/37/38

Safety Statements 

24/25

WGK Germany 

WGK 3

TSCA 

TSCA listed

HS Code 

29322985

Storage Class

6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications

Carc. 1B
Muta. 2
Repr. 2
Skin Irrit. 2

MSDS

• Language:English Provider:ACROS

PHENOLPHTHALEIN DISODIUM SALT Usage And Synthesis

Chemical Properties

PURPLE CRYSTALLINE POWDER

Uses

Phenolphthalein (disodium), 95% is a pH indicator.

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