Hóa chất sắc kí methanol jt baker hà nội
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Các sản phẩm luôn có hàng sẵn: - Dung Môi Sắc Ký: Methanol, Acetonitril, n-Hexan, Nước... - Dung dịch Chuẩn ICP, AAS, pH - Hóa Chất Karl Fischer - Ống chuẩn: NaOH, HNO3, KOH, HCl.... - Các Muối đệm - Các acid thông dụng: - Các Buffer - Chất chỉ thị Hãy liên hệ ngay với chúng tôi để nhận giá tốt nhất. 0938 297 075 Mr. Thiện. Mô tảSynonyms: CarbinolMethyl alcoholMethyl hydroxideMethylolWood alcohol Filtered through a 0.2 µm filter. Formula: CH₃OH MW: 32.04 g/mol Boiling Pt: 64.6 °C (1013 hPa) Melting Pt: –98 °C Density: 0.7918 g/cm³ (20 °C) Flash Pt: 11 °C (closed cup) Storage Temperature: Ambient MDL Number: MFCD00004595 CAS Number: 67-56-1 EINECS: 200-659-6 UN: 1230 ADR: 3,II REACH: 01-2119433307-44 Merck Index: 13,05984 Specification Test ResultsFor Laboratory,Research,or Manufacturing Use Assay (CH₃OH) (by GC, corrected for water) ≥99.9 % Ultraviolet Absorbance (1.00-cm cell vs. water) – 400-254 nm ≤0.01 Ultraviolet Absorbance (1.00-cm cell vs. water) – 225 nm ≤0.15 Ultraviolet Absorbance (1.00-cm cell vs. water) – UV Cut-off, nm ≤205 Gradient Elution Test (a.u.) – 254 nm ≤0.002 Fluorescence Trace Impurities, measured as Quinine Base – at 450 nm Emission ≤0.3 ppb Fluorescence Trace Impurities, measured as Quinine Base – at Emission Maximum for Impurities ≤1.0 ppb Acetone ≤0.001 % Residue after Evaporation ≤1.0 ppm Titrable Acid (µeq/g) ≤0.3 Titrable Base (µeq/g) ≤0.10 Water (by KF, coulometric) ≤0.05 % Filtered through a 0.2 micron filter. |
