Basic information acid–base indicator Chemical Properties General Description Phenolphthalein molecular structure Phenolphthalein indicator Phenolphthalein test paper Pharmacology and Toxicology Pharmacokinetics Adverse reactions Application Production method Safety Related Supplier
Phenolphthalein Structure

Phenolphthalein

Chemical Properties

Melting point 261-263 °C (lit.)
Boiling point 417.49°C (rough estimate)
Density  1.27 g/cm3 at 32 °C
refractive index  1.5400 (estimate)
Flash point 24 °C
storage temp.  no restrictions.
solubility  Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane.
form  Solid
pka 9.4(at 25℃)
Colour Index  764
color  White to yellow-white
PH Range 8.0(colorless)-10(Red)
PH 7.8~10.0
Odor Odorless
Water Solubility  <0.1 g/100 mL
λmax 552nm, 553nm, 374nm, 205nm, 229nm, 276nm
Merck  14,7243
BRN  284423
Stability Stable. Incompatible with strong oxidizing agents, alkalies.
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
LogP 2.410
CAS DataBase Reference 77-09-8(CAS DataBase Reference)
IARC 2B (Vol. 76) 2000
NIST Chemistry Reference Phenolphthalein(77-09-8)
EPA Substance Registry System 3,3-Bis(4-hydroxyphenyl)phthalide (77-09-8)

Safety Information

Hazard Codes  Xn,T,F,Xi
Risk Statements  40-22-10-36/38-23/25-11-36/37/38-68-62-45-39/23/24/25-23/24/25
Safety Statements  45-36/37-33-24-16-7-36-26-53
WGK Germany  3
RTECS  SM8380000
TSCA  Yes
HS Code  29322910
Hazardous Substances Data 77-09-8(Hazardous Substances Data)

MSDS

Usage And Synthesis

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