71578

Poly(ethylene glycol) methyl ether

BioUltra, 500

• Synonym(s): Polyethylene glycol, Methoxy poly(ethylene glycol), Polyethylene glycol monomethyl ether, mPEG
• Linear Formula: CH₃(OCH₂CH₂)_nOH
• CAS Number: 9004-74-4
• MDL number: MFCD00084416
• UNSPSC Code: 12162002
• PubChem Substance ID: 24886225
• NACRES: NA.26

Properties

• vapor density: >1 (vs air)
• Quality Level: 100
• vapor pressure: 0.05 mmHg ( 20 °C)
• description: non-ionic
• product line: BioUltra
• form: paste; viscous liquid (clear)
• mol wt: 470-530
• impurities: insoluble matters, passes filter test; ≤0.005% peroxides (as H₂O₂)
• pH: 5.5-7.0 (25 °C, 50 mg/mL in H₂O)
• mp: 20 °C (lit.)
• solubility: H₂O: 50 mg/mL at 25 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: 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
• UV absorption: λ: 260 nm A_max: 0.06; λ: 280 nm A_max: 0.03
• functional group: hydroxyl
• InChI: 1S/C3H8O2/c1-5-3-2-4/h4H,2-3H2,1H3
• InChI key: XNWFRZJHXBZDAG-UHFFFAOYSA-N

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 359.6 °F - closed cup
• flash_point_c: 182 °C - closed cup
• ppe: Eyeshields, Gloves