Methyl Orange, ACS PurReagent
ACS PurReagent
Properties
| M pt. | >300°C |
| Density | 0.987g/mLat 25°C |
| Form | Powder |
Safety Information
| Hazard Statement(s) | H301 |
| Precautionary Statement | P264 - P270 - P301 + P310 - P405 - P501 |
| GHS Pictogram |
|
| Signal word | Danger |
| Storage Temp. | Room Temperature |
| Storage Class | 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects |
Description
Application
It is widely used as a pH indicator in acid-base titrations (red below pH 3.1 yellow above pH 4.4) particularly for strong acid-weak base reactions and in textile dyeing.
Purpose
Its primary purpose is to signal titration endpoints through protonation of the azo and dimethylamino groups causing a sharp red-to-yellow color shift due to altered conjugation.
General Description
Methyl orange (C14H14N3NaO3S) is an orange-yellow crystalline powder azo dye featuring a central -NN- linkage between a dimethylaniline moiety and a sulfonic acid-substituted benzene ring with a molecular weight of 327.33 gmol and decomposition above 300C.
Documents
| SDS | |
| COA | |
| Specification | |
| Bulk quote order form | |
| Sample COA |