8.43912

Polyethylene glycol diacid 600

for synthesis

• Szinonimák: Polyethylene glycol diacid 600, Polyethylene glycol bis(carboxymethyl) ether
• Lineáris képlet: HOOCCH₂(OCH₂CH₂)_nOCH₂COOH
• CAS-szám: 39927-08-7
• MDL-szám: MFCD00132002
• UNSPSC kód: 12352106
• NACRES: NA.22

Tulajdonságok

• Minőségi szint: 200
• Forma: liquid
• hatékonyság: >2000 mg/kg LD₅₀, oral (Rat)
• pH: 2.1 (100 g/L in H₂O)
• átmeneti hőmérséklet: flash point 300 °C
• sűrűség: 1.185 g/cm³ at 20 °C
• tárolási hőmérséklet: 2-30°C
• SMILES string: OCCO.OCC(=O)O
• InChI: 1S/C2H4O3.C2H6O2/c3-1-2(4)5;3-1-2-4/h3H,1H2,(H,4,5);3-4H,1-2H2

Leírás

Alkalmazás

Polyethylene glycol diacid 600 can be used as an acylating agent as well as a solvent in the resolution of free secondary alcohols using a biocatalyst. It is also used as a hydrophilic ligand in the surface modification of lanthanide co-doped NaYF₄ nanocrystals via ligand exchange reaction to impart the water solubility of the nanocrystals.

Analízis megjegyzés

Colour (visual): colourless
Appearance of substance (visual): liquid
Acid value: 160 - 195
Water (K. F.): ≤ 5.0 %
Refractive index (n 20°/D): 1.460 - 1.480
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

Biztonsági adatok

• Tárolási osztály kódja: 10 - Combustible liquids
• WGK: WGK 1
• Lobbanási pont (F): 572.0 °F - closed cup
• Lobbanási pont (C): 300 °C - closed cup