Phenolphthaline

Structural formula
General
Surname	Phenolphthaline
other names	2- [bis (4-hydroxyphenyl) methyl] benzoic acid ( IUPAC )
Molecular formula	C 20 H 16 O 4
Brief description	White dust
External identifiers / databases
CAS number 81-90-3 EC number 201-384-4 ECHA InfoCard 100.001.260 PubChem 66494 ChemSpider 59865 Wikidata Q1465337
properties
Molar mass	320.34 g mol −1
Physical state	firmly
Melting point	235 ° C
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Phenolphthalin is a chemical compound from the group of aromatic hydrocarbons . It arises from the reduction of phenolphthalein with zinc in alkaline solutions and is used in the Kastle-Meyer test to indicate suspected blood traces and to detect peroxides .

literature

• DF Bender, AW Breidenbach: Modification of the Phenolphthalin Method for the Determination of Total Oxidants , in: Anal. Chem. , 1963 , 35  (3), pp. 417-418, doi : 10.1021 / ac60196a051 .

Individual evidence

1. ^ Phenolphthaline (SCBT) .
2. ↑ Entry on phenolphthaline at TCI Europe, accessed on March 14, 2010.
3. ↑ Phenolphthalin data sheet from Sigma-Aldrich , accessed on May 29, 2011 ( PDF ).
4. ↑ Th. N. Kleinert, F. Sieber: About the formation and detection of small amounts of peroxide on cellulose fibers , in: Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood , 1955 , Volume 9, Issue 1, p. 15– 17, doi : 10.1515 / revised 1955.9.1.15 .