Phenolphthalein (Quinone type)
Time:2013-12-13 19:45:10,Count:0

Phenolphthalein (Quinone type)
Alias
Phenolphthalein
Benzoic acid, 2-((4-hydroxyphenyl)(4-oxo-2,5-cyclohexadien-1-ylidene)methyl)-
Category
Anionic surfactants-Carboxylate
CAS No.
5768-87-6
Molecular Formula & Molecular Weight
Molecular Formula: C20H14O4
Molecular Weight: 318.32
Structural Formula
Properties
Appearance: solid.
Solubility: slightly soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent emulsifying, dispersing abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
Actives*, %, ≥
90
 
*: should be marked on molecular weight.
Major Uses
Use as acid-base indicator.
Manufacturers