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Methyl Orange

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Methyl orange

CAS NO.: 547-58-0

Synonyms: P -Dimethylaminoazobenzenesul fonic acid sodium salt; Orange III.

Molecular formula: C14H14N3NaO3S

Molecular weight: 327.33

Property : Orange chip crystal or crystalline powder. one of azo pigment. dissolved in hot water; hard dissolved in cool water, ethanol and ether. heated and resolution..

Use: acid-base indicator.. volume mode tests stannum.

Range of PH: 3.0 (red) - 4.4 (yellow)

Sensitivity test : Passed

Solubility test in water: passed

Residue on ignition (sulfate): 18.5 -22.0%

Oxide: passed

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