Methyl orange (C.I. 13025), AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator

: VWR Chemicals

Methyl orange (C.I. 13025), AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator

: VWR Chemicals

:547-58-0

:C₁₄H₁₄N₃NaO₃S

:MFCD00007502

:327.34 g/mol

Appearance of solution:
Passes test
pH range (pink to orange-yellow):
3,2 - 4,4
Visual transition interval:
Passes test
Absorption maximum I1 (pH 3,1):
501 - 504 nm
Absorption maximum I2 (pH 4,4):
467 - 471 nm
Absorptivity (A1%, 1cm, I1, pH 3,1, on dried sample):
1050 - 1150
Absorptivity (A1%, 1cm, I2, pH 4,4, on dried sample):
750 - 850
Loss on drying (110 ºC):
Max. 5%

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