Sigma-Aldrich 34885 Methanol suitable for HPLC, gradient grade, ≥99.9% 1 L
Kategori
Marka
Stok Kodu
LB.SA.34885-1L-R
Kısa Bilgi
Synonym(s): Methyl alcohol Linear Formula: CH3OH CAS Number: 67-56-1 Molecular Weight: 32.04 Beilstein: 1098229 EC Number: 200-659-6 MDL number: MFCD00004595 PubChem Substance ID: 329755085 NACRES: NA.05
| Sigma-Aldrich 34885 Methanol suitable for HPLC, gradient grade, ≥99.9% 1 L |
| Teknik Özellikler | |
| Catalog No |
: 34885 |
| Cas Number | : 67-56-1 |
| Linear Formula | : CH3OH |
| Molecular Weight | : 32.04 |
| MDL Number | : MFCD00004595 |
| Vapor density | : 1.11 (vs air) |
| Vapor pressure | 410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C) |
| Grade | : for HPLC, gradient grade |
| Assay | : ≥ 99.9 % |
|
Autoignition temp. |
: 725 °F |
| Expl. lim. | : 36 % |
| İmpurities | KMnO4 red. matter (as O), in accordance
≤0.0005% free alkali (as NH3)
≤0.0005% non-volatile matter
≤0.001% acetaldehyde
≤0.001% acetone (GC)
≤0.001% formaldehyde
≤0.02% water (Karl Fischer)
≤1 ppb fluorescence (quinine) at 254 nm
≤1 ppb fluorescence (quinine) at 365nm |
| Evapn. residue | : < 0.0003 % |
| Color | : APHA: ≤10 |
| Refractive index | : n20/D 1.329(lit.) |
| bp | : 64.7 °C (lit.) |
| mp | : -98 °C (lit.) |
| Density |
: 0.791-0.793 g/mL at 20 °C |
|
Absorption |
HPLC-gradient/230 nm ≤2 mAU
HPLC-gradient/254 nm ≤5 mAU
absorption/ in accordance |
| UV absorption | λ: 210 nm Amax: 0.50
λ: 220 nm Amax: 0.30
λ: 230 nm Amax: 0.15
λ: 235 nm Amax: 0.10
λ: 240 nm Amax: 0.05
λ: 260 nm Amax: 0.01
λ: 400 nm Amax: 0.01 |
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