71578

聚乙二醇甲基醚

BioUltra, 500

• 别名: mPEG, 甲氧基聚乙二醇, 聚乙二醇单甲醚
• 线性分子式: CH₃(OCH₂CH₂)_nOH
• CAS号: 9004-74-4
• MDL编号: MFCD00084416
• UNSPSC代码: 12162002
• PubChem化学物质编号: 24886225
• NACRES: NA.26

属性

• 蒸汽密度: >1 (vs air)
• 蒸汽压: 0.05 mmHg ( 20 °C)
• 描述: non-ionic
• 产品线: BioUltra
• 表单: paste; viscous liquid (clear)
• 分子量: 470-530
• 杂质: insoluble matters, passes filter test; ≤0.005% peroxides (as H₂O₂)
• pH值（酸碱度）: 5.5-7.0 (25 °C, 50 mg/mL in H₂O)
• mp: 20 °C (lit.)
• 溶解性: H₂O: 50 mg/mL at 25 °C, clear, colorless
• 痕量阴离子: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 痕量阳离子: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤200 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤200 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 50 mg/mL in H₂O
• 紫外吸收: λ: 260 nm A_max: 0.06; λ: 280 nm A_max: 0.03
• 官能团: hydroxyl
• SMILES字符串: O(CCO)C
• InChI: 1S/C3H8O2/c1-5-3-2-4/h4H,2-3H2,1H3
• InChI key: XNWFRZJHXBZDAG-UHFFFAOYSA-N

安全信息

• 储存分类代码: 10 - Combustible liquids
• WGK: WGK 1
• 闪点(°F): 359.6 °F - closed cup
• 闪点(°C): 182 °C - closed cup
• 个人防护装备: Eyeshields, Gloves