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Methoxypolyethylene glycols Structure

Methoxypolyethylene glycols

Chemical Properties

Melting point 60-64 °C
Boiling point >200°C/760mmHg
Density  1.094 g/mL at 25 °C
vapor density  >1 (vs air)
vapor pressure  0.05 mm Hg ( 20 °C)
refractive index  n20/D 1.459
Flash point 268 °C
storage temp.  -20°C
solubility  H2O: 50 mg/mL at 25 °C, clear, colorless
form  semisolid
color  White to pale yellow
Specific Gravity 1.094
PH 5.5-7.0 (25℃, 50mg/mL in H2O)
Water Solubility  Slightly miscible with water.
λmax λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.03
Stability Stable. Incompatible with strong oxidizing agents, strong acids, strong bases.
InChIKey XNWFRZJHXBZDAG-UHFFFAOYSA-N
LogP -0.800 (est)
EWG's Food Scores 1-3
FDA UNII METHOXY PEG-40 (6AXS45P1QU)
PEG-4 METHYL ETHER (3S6PWQ487V)
METHOXY PEG-20 (77U9H6E11K)
METHOXY PEG-16 (89ES36762B)
PEG-7 METHYL ETHER (ENK4Y6S66X)
EPA Substance Registry System Poly(oxy-1,2-ethanediyl), .alpha.-methyl-.omega.-hydroxy- (9004-74-4)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H372-H302-H319-H336-H335
Precautionary statements P264-P280-P305+P351+P338-P337+P313P-P260-P264-P270-P314-P501-P264-P270-P301+P312-P330-P501-P261-P271-P304+P340-P312-P403+P233-P405-P501
Safety Statements  24/25-22
WGK Germany  3
RTECS  PE8271000
3
TSCA  Yes
HS Code  29091990
NFPA 704:
1
1 0

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