Methyl red, sodium salt, C.I. 13020, indicator, soluble in water
- Synonyms: 2-[(4-Dimethylamino)phenylazo]benzoic acid sodium salt
- C15H14N3NaO2
- M = 291,29 g/mol
- CAS [845-10-3]
- EINECS-No.: 212-682-9
- Solub. in water: (20 ºC): ~ 800 g/l
- Tariff number: 2927 00 00 90
- Applications: analytical chemistry, indicator.
SPECIFICATIONS
brownish - yellow ): 4,5 - 6,2
Absorption maximum l1 (pH 4,5): 523 - 526 nm
Absorption maximum l2 (pH 6,2): 430 - 438 nm
Absorptivity (A1%/1 cm; l1; pH 4,5 on dried sample): 1200 - 1400
Absorptivity (A1%/1 cm; l2; pH 6,2 on dried sample): 600 - 700
transition range acc. ACS: passes test
loss on drying (110 ºC): max. 5 %
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![Rojo de metilo, sal sódica, C.I. 13020, indicador, soluble en agua, Ácido 2-[(4-Dimetilamino)fenilazo]benzoico, sal de sodio](/assets/media/articulos/29258b2e-6b9d-4295-9647-dc0fbcf67bb5/RO01550010.jpg){kind=small}
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RO01550010 |
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![Rojo de metilo, sal sódica, C.I. 13020, indicador, soluble en agua, Ácido 2-[(4-Dimetilamino)fenilazo]benzoico, sal de sodio](/assets/media/articulos/3a2a1e1f-14b7-4a97-8cf2-cda1eca89df7/RO01550025.jpg){kind=small}
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RO01550025 |
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![Rojo de metilo, sal sódica, C.I. 13020, indicador, soluble en agua, Ácido 2-[(4-Dimetilamino)fenilazo]benzoico, sal de sodio](/assets/media/articulos/d387889a-f930-471c-af03-d9be65c351a7/RO01550100.jpg){kind=small}
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RO01550100 |
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