Difference between revisions of "Bromophenol blue"
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== Description == | == Description == | ||
| − | + | [[[SliderGallery rightalign|bromophenol blue.jpg~Chemical structure]]] | |
A tan to orange powder that is used as an acid-base indicator dye. In solution, bromophenol blue gives a yellow color below pH 3.0 and purple color above pH 4.6. | A tan to orange powder that is used as an acid-base indicator dye. In solution, bromophenol blue gives a yellow color below pH 3.0 and purple color above pH 4.6. | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | Bromphenolblau (Deut.); | + | Bromphenolblau (Deut.); bromphenol blue; bromcresol blue; bromphenol blue sulfone form; 3,3',5,5',-tetrabromophenolsulfonphthalein; 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromophenol)S,S dioxide |
| − | + | == Risks == | |
| − | == | + | * Ingestion, inhalation or contact may cause irritation. |
| + | * ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=B3925&productDescription=BROMOPHENOL+BLUE+CERT+ACS+5G&vendorId=VN00033897&countryCode=US&language=en SDS] | ||
| + | ==Physical and Chemical Properties== | ||
Soluble in ethanol, ether, ethyl acetate, benzene, alkali solutions. Slightly soluble in water. Hexagonal crystals. | Soluble in ethanol, ether, ethyl acetate, benzene, alkali solutions. Slightly soluble in water. Hexagonal crystals. | ||
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! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 273 | + | | 273 C |
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! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | 279 (dec) | + | | 279 (dec) C |
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| − | == | + | ==Resources and Citations== |
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 | ||
Revision as of 10:54, 10 May 2022
Description
A tan to orange powder that is used as an acid-base indicator dye. In solution, bromophenol blue gives a yellow color below pH 3.0 and purple color above pH 4.6.
Synonyms and Related Terms
Bromphenolblau (Deut.); bromphenol blue; bromcresol blue; bromphenol blue sulfone form; 3,3',5,5',-tetrabromophenolsulfonphthalein; 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromophenol)S,S dioxide
Risks
- Ingestion, inhalation or contact may cause irritation.
- ThermoFisher: SDS
Physical and Chemical Properties
Soluble in ethanol, ether, ethyl acetate, benzene, alkali solutions. Slightly soluble in water. Hexagonal crystals.
| Composition | C19H10Br4O5S |
|---|---|
| CAS | 115-39-9 |
| Melting Point | 273 C |
| Molecular Weight | mol. wt. = 670.02 |
| Boiling Point | 279 (dec) C |
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1468
- Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995 Comment: OMNIC: formula= C19H10Br4O5S, CAS= 115-39-9