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Colour Index

764

solubility

Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane.

color

White to yellow-white

Boiling point

417.49°C (rough estimate)

pka

9.4(at 25℃)

BRN

284423

storage temp.

room temp

refractive index

1.5400 (estimate)

form

Solid

PH Range

8.0(colorless)-10(Red)

PH

7.8～10.0

Fp

24?°颁

EPA Substance Registry System

3,3-Bis(4-hydroxyphenyl)phthalide (77-09-8)

λ尘补虫

552nm, 553nm, 374nm, 205nm, 229nm, 276nm

density

1.27 g/cm3 at 32 °C

Water Solubility

<0.1 g/100 mL

Major Application

Display device, sensors, semiconductors, fuel cells, photoreceptors, electronic packaging, authentication system for secure documents, inks, correction fluid, paints, detection of defects in films, floor coatings, textiles, corrosion testing, explosive, concrete, toys, detecting lipase activity of crop seeds, soaps, method for prevention of drugmisuse, cosmetics, diapers, detecting viable cells, carbohydrates, antimalarial, treating amyloid-associated diseases

Melting point

261-263 °C (lit.)

Merck

14,7243

Stability

Stable. Incompatible with strong oxidizing agents, alkalies.

IARC

2B (Vol. 76) 2000

NIST Chemistry Reference

Phenolphthalein(77-09-8)

CAS DataBase Reference

77-09-8(CAS DataBase Reference)

Odor

Odorless