8.07483

Poli(etilenglicol)

200, 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: <0.01 hPa ( 20 °C)
• Quality Segment: 200
• form: liquid
• autoignition temp.: 350 °C (DIN 51794)
• 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: Sustainability features
• pH: 5-7 (20 °C, 100 g/L in H₂O)
• bp: >150 °C
• mp: -50 °C
• transition temp: flash point 180 °C
• solubility: soluble 70 g/L
• density: 1.124 g/cm³ at 20 °C
• 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

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 200 can be used as:

• A structure-directing agent to synthesize iron vanadate (FeVO₄) nanoparticles via co-precipitation method.
• An organic additive to prepare crystalline nanorods of calcium tungstate (CaWO₄) using calcium chloride and sodium tungstate via solvothermal process.
• A surface modifier in the synthesis of calcium peroxide nanoparticles using CaCl₂ as a precursor via hydrolysis-precipitation method.
• A green solvent in combination with H₂O in the preparation of 4-sulfanylcoumarins by sulfanylation of 4-tosyloxycoumarins with thiourea and alkyl halides.

Analysis Note

Density (d 20 °C/ 4 °C): 1.124 - 1.126
Hydroxyl value: 535 - 590
Average molecular mass: 190 - 210
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