8.19015

Poli(etilenglicol)

3000, for synthesis

• Sinónimos: PEG
• Fórmula lineal: H(OCH₂CH₂)_nOH
• Número CAS: 25322-68-3
• NACRES: NA.22
• EC Index Number: 500-038-2
• UNSPSC Code: 13111021
• MDL number: MFCD00081839

Propiedades

• 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)
• sustainability: Sustainability features
• 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
• 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

Descripción

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

Hydroxyl value: 34 - 42
Melting range (lower value): ≥ 55 °C
Melting range (upper value): ≤ 59 °C
Average molecular mass: 2700 - 3300
Identity (IR): passes test

Información de seguridad

• Clase de almacenamiento: 10 - Combustible liquids
• ¿Qué está pasando?: WGK 1
• Punto de inflamación (°F): 281.5 °F - closed cup
• Punto de inflamación (°C): 138.6 °C - closed cup