8.19015

Polyethylenglykol

3000, 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 ( 20 °C)
• Quality Segment: 200
• form: liquid
• 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)
• mp: 55-58 °C
• transition temp: flash point 270 °C
• density: 1.21 g/cm³ at 20 °C
• bulk density: 400‑500 kg/m³
• greener alternative category: Aligned
• storage temp.: 2-30°C
• 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 3000 can be used as:

• A surface-modification agent in the synthesis of monodispersed magnetite colloidal magnetic nanoparticles.
• A precipitating agent in the crystallization of oligoxyloglucan reducing-end specific cellobiohydrolase (OXG-RCBH) by the hanging-drop vapor diffusion method.
• A solvent and phase-transfer catalyst (PTC) in the application of aqueous biphasic reactive extraction.
• An additive in the preparation of polysulfone membrane to study the porometry.

Analysis Note

Hydroxylzahl: 34 - 42
Schmelzbereich (unterer Wert): ≥ 55 °C
Schmelzbereich (oberer Wert): ≤ 59 °C
Mittlere Molmasse: 2700 - 3300
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