8.07483

Poli(etilenglicol)

200, for synthesis

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

Propiedades

• vapor pressure: <0.01 hPa ( 20 °C)
• Quality Level: 200
• form: liquid
• autoignition temp.: 350 °C (DIN 51794)
• potency: 28000 mg/kg LD₅₀, oral (Rat); >20000 mg/kg LD₅₀, skin (Rabbit)
• 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

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

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 281.5 °F - closed cup
• flash_point_c: 138.6 °C - closed cup