Iodophenol blue
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Iodophenol blue | |||||||||||||||
other names |
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Molecular formula | C 19 H 10 I 4 O 5 S | |||||||||||||||
Brief description |
orange to brown solid |
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properties | ||||||||||||||||
Molar mass | 857.96 g mol −1 | |||||||||||||||
Physical state |
firmly |
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Melting point |
229 ° C |
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solubility |
almost insoluble in water |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Iodophenol blue is a chemical compound from the group of triphenylmethane dyes and is related to phenolphthalein . It is the tetraiodic derivative of phenol red . It is used as an indicator substance and changes its color from green to blue in the pH range from 3.0 to 4.8.
literature
- HW Gao, Y. Qian, ZJ Hu: Tetraiodophenolsulfonphthalein as a spectral substitute to characterize the complexation between cationic and anionic surfactant . In: Journal of Colloid and Interface Science . tape 279 , no. 1 , 2004, ISSN 0021-9797 , p. 244-252 , doi : 10.1016 / j.jcis.2004.06.051 , PMID 15380435 .
Individual evidence
- ↑ a b Data sheet iodophenol blue from AlfaAesar, accessed on March 31, 2010 ( PDF )(JavaScript required) .
- ↑ a b c d data sheet 3 ′, 3 ′ ′, 5 ′, 5 ′ ′ - Tetraiodophenolsulfonephthalein from Sigma-Aldrich , accessed on April 5, 2011 ( PDF ).