Product Description
متانول مرک کد 106007 با گرید کروماتوگرافی در بسته بندی 2.5 لیتری و با مشخصات زیر :
106007 | Methanol
Methanol gradient grade for liquid chromatography LiChrosolv® Reag. Ph Eur. CAS 67-56-1, chemical formula CH₃OH, molar mass 32.04 g/mol.
| grade | Reag. Ph Eur |
| bp | 64.5 °C (1013 hPa) |
| expl. lim. | 5.5 – 44 %(V) |
| vapor pressure | 128 hPa (20 °C) |
| density | 0.792 g/cm3 (20 °C) |
| evaporation number | 1.9 |
| flash point | 10 °C |
| autoignition temp. | 455 °C DIN 51794 |
| mp | -98 °C |
| LD 50 oral | LD50 Rat 5628 mg/kg |
| LD 50 dermal | LD50 Rabbit 17100 mg/kg |
| shipped in | ambient |
| storage temp. | Store at +5°C to +30°C. |
| specifications | Purity (GC): ≥ 99.9 % |
| Identity (IR): conforms | |
| Evaporation residue: ≤ 2.0 mg/l | |
| Water: ≤ 0.02 % | |
| Colour: ≤ 10 Hazen | |
| Density (d 20 °C/20 °C): 0.791 – 0.793 | |
| Boiling point: 64 – 65 °C | |
| Acidity: ≤ 0.0002 meq/g | |
| Alkalinity: ≤ 0.0002 meq/g | |
| Gradient grade (at 235 nm): ≤ 2.0 mAU | |
| Gradient grade (at 254 nm): ≤ 1.0 mAU | |
| Fluorescence (as quinine at 254 nm): ≤ 1.0 ppb | |
| Fluorescence (as quinine at 365 nm): ≤ 0.5 ppb | |
| Transmission (at 210 nm): ≥ 20 % | |
| Transmission (at 220 nm): ≥ 60 % | |
| Transmission (at 230 nm): ≥ 75 % | |
| Transmission (at 235 nm): ≥ 83 % | |
| Transmission (at 250 nm): ≥ 95 % | |
| Transmission (from 260 nm): ≥ 98 % | |
| Absorbance (at 225 nm): ≤ 0.170 | |
| Filtered by 0.2 µm filter. Suitable for UPLC / UHPLC /Ultra HPLC – instruments. Conforms to Methanol R1 and R2 according to Reag. Ph Eur; conforms to the requirements of ACS for liquid chromatography suitability. |
