8.43912

Polyethylene glycol diacid 600

for synthesis

• Synonyme(s) : Polyethylene glycol diacid 600, Polyethylene glycol bis(carboxymethyl) ether
• Formule linéaire : HOOCCH₂(OCH₂CH₂)_nOCH₂COOH
• Numéro CAS: 39927-08-7
• Numéro MDL: MFCD00132002
• Code UNSPSC : 12352106
• Nomenclature NACRES : NA.22

Propriétés

• Niveau de qualité: 200
• Forme: liquid
• Puissance: >2000 mg/kg LD₅₀, oral (Rat)
• pH: 2.1 (100 g/L in H₂O)
• Température de transition: flash point 300 °C
• Densité: 1.185 g/cm³ at 20 °C
• Température de stockage: 2-30°C

Description

Application

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.

Remarque sur l'analyse

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.

Informations sur la sécurité

• Code de la classe de stockage: 10 - Combustible liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 572.0 °F - closed cup
• Point d'éclair (°C): 300 °C - closed cup