Chloranilic acid

Structural formula
General
Surname	Chloranilic acid
other names	2,5-dichloro-3,6-dihydroxy- p -benzoquinone 2,5-dichloro-3,6-dihydroxy-2,5-cyclohexadiene-1,4-dione NSC 6108 NSC 97383
Molecular formula	C 6 H 2 Cl 2 O 4
Brief description	red solid
External identifiers / databases
CAS number 87-88-7 EC number 201-780-7 ECHA InfoCard 100.001.619 PubChem 66604 Wikidata Q3277941
properties
Molar mass	208.98 g mol −1
Physical state	firmly
Melting point	≥300 ° C
solubility	slightly soluble in water
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Chloranilic acid is a chemical compound from the group of chlorinated benzoquinones .

Extraction and presentation

Chloranilic acid can be obtained from chloranil by basic hydrolysis .

properties

Chloranilic acid is a dark orange to red solid that is sparingly soluble in water.

use

Chloranilic acid is used for paper chromatography of metals such as calcium , strontium , zirconium and molybdenum .

Individual evidence

1. ↑ ^{a b c d} data sheet Chloranilic acid, puriss. p. a., for the determination of Ca, Sr, Zr, ≥99.0% (T) from Sigma-Aldrich , accessed on July 22, 2013 ( PDF ).
2. ↑ ^{a b} Data sheet chloranilic acid (PDF) from Merck , accessed on July 22, 2013.
3. ↑ ^{a b} Entry on chloranilic acid in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
4. ^ By Karl-Heinz Lautenschläger: Taschenbuch der Chemie . Harri Deutsch Verlag, 2007, ISBN 978-3-8171-1760-4 , pp. 296 ( limited preview in Google Book search).
5. ↑ Data sheet Chloranilic acid, 98 +% from AlfaAesar, accessed on July 22, 2013 ( PDF )(JavaScript required) .