8.21037

Polyethylenglykol

2000, for synthesis

• Synonym(e): Poly(ethylenglykol), PEG
• Lineare Formel: H(OCH₂CH₂)_nOH
• CAS-Nummer: 25322-68-3
• NACRES: NA.22
• EC Index Number: 500-038-2
• UNSPSC Code: 13111021
• MDL number: MFCD00081839

Eigenschaften

• vapor pressure: <0.1 hPa
• Quality Segment: 200
• form: flakes
• autoignition temp.: 420 °C
• potency: 28000 mg/kg LD₅₀, oral (Rat), >20000 mg/kg LD₅₀, skin (Rabbit)
• greener alternative product characteristics: Safer Solvents and Auxiliaries; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• pH: 4-7 (20 °C, 100 g/L in H₂O)
• kinematic viscosity: 46-55 cSt(20 °C) (50% solution)
• mp: 49-52 °C
• transition temp: flash point 250 °C
• solubility: 600 g/L
• density: 1.21 g/cm³ at 20 °C
• bulk density: 400‑500 kg/m³
• greener alternative category: Aligned
• storage temp.: no temp limit
• SMILES string: C(CO)O
• InChI: 1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
• InChI key: LYCAIKOWRPUZTN-UHFFFAOYSA-N

Beschreibung

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. Polyethylene glycol (PEG) is an eco-friendly, biodegradable polymer widely used in pharmaceuticals and cosmetics. Its non-toxic nature and versatility make it a sustainable choice, derived from renewable resources, contributing to greener product formulations. Click here for more information.

Application

Polyethylene glycol 2000 is a hydrophilic linear polymer that can be used as:

• An organic additive in the synthesis of metal nanoparticles to control the size and morphology of nanostructure.
• A carbon source to prepare acidophilic highly fluorescent carbon dots (CDs) via the one-pot hydrothermal method.
• A dispersion stabilizer to synthesize amorphous Fe₂O₃ nanoparticles by microwave irradiation method. During the synthesis, PEG-2000 inhibits nonhomogeneous precipitation to obtain homogeneous precipitation of the metal nanoparticles.

Analysis Note

Hydroxylzahl: 51 - 63
Schmelzbereich (unterer Wert): ≥ 50 °C
Schmelzbereich (oberer Wert): ≤ 55 °C
Mittlere Molmasse: 1900 - 2200
Identität (IR): entspricht

Sicherheitshinweise

• Lagerklasse: 10 - Combustible liquids
• wgk: WGK 1
• flash_point_f: 281.5 °F - closed cup
• flash_point_c: 138.6 °C - closed cup