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H400023 | Methanol (HPLC-gradient grade)

Signal Word: Danger

268 H225-H331-H311-H301-H370

CE: 603-001-00-X

  • CAS Number:   67-56-1
  • Formula:   CH3OH
  • F.W:   32.04
  •  
Specifications

Minimum assay (G.C.).................................................................... 99,9 %

Identity..............................................................................................IR p/t.

Density at 20/4....................................................................... 0,791-0,792

MAX. IMPURITIES

APHA colour...........................................................................................10

Insoluble matter in H2O......................................................................... p/t.

Non-volatile matter..................................................................... 0,0003 %

Acidity.................................................................................. 0,0002 meq/g

Alkalinity.............................................................................. 0,0002 meq/g

Water (H2O)..................................................................................... 0,03 %

Reducing substances to KMnO4.......................................................... p/t.

Darkened substances by H2SO4........................................................... p/t.

Carbonyl compound (as CH3COCH3)......................................... 0,001 %

Suitability for gradient acc. to ACS...................................................... p/t.

Gradient:

l(nm) 235 254

A (mAU) 2 1

UV Spectrum (1cm cell; Ref.: water)

l (nm) 205 (Cut off) 220 235 240 260-400

A (AU) 1,000 0,260 0,081 0,046 0,009

T (%) 10 55 83 90 98

Fluorescence (as quinine):

l (nm) 254 365

ppb 1 0,5

Data of interest in HPLC:

Rohrschneider polarity..........................................................................5,1

Eluotropic value E°(Al2O3)....................................................................0,95

Sol. H2O in solv. at 20°C............................................................... miscible

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