Difference between revisions of "Cresol red"
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== Description == | == Description == | ||
| − | A reddish-brown crystalline powder used as an [http://cameo.mfa.org/materials/fullrecord.asp?name=indicator | + | A reddish-brown crystalline powder used as an [http://cameo.mfa.org/materials/fullrecord.asp?name=indicator%20dye acid-base indicator]. Cresol red changes from yellow to red from pH 7.2 - 8.8. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 12:02, 13 June 2013
Description
A reddish-brown crystalline powder used as an acid-base indicator. Cresol red changes from yellow to red from pH 7.2 - 8.8.
Synonyms and Related Terms
o-cresol-sulfonphthalein; rosso cresolo (It.)
Other Properties
Soluble in ethanol, water, dilute acid and dilute alkalis.
| Composition | C21H18O5S |
|---|---|
| CAS | 1733-12-6 |
| Melting Point | 290(dec) |
| Molecular Weight | mol. wt. = 382.42 |
Hazards and Safety
Fisher Scientific: MSDS
Authority
- G.S.Brady, G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
- Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 2647
- Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995 Comment: OMNIC: formula= C21H18O5S, CAS= 1733-12-6